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From: "Morgan, Keith" <kmorga07@harris.com>
To: Rick Taylor <rick@tropicalstormsoftware.com>, "manet@ietf.org" <manet@ietf.org>
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From nobody Sun Jun  4 09:15:25 2017
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References: <63448cdd41fa4c94a44a390dd10848a1@MLBXCH18.cs.myharris.net> <1496242619.3129.19.camel@tropicalstormsoftware.com> <61e159c5594246d8afa42b5ee5cda557@MLBXCH18.cs.myharris.net>
From: Stan Ratliff <ratliffstan@gmail.com>
Date: Sun, 4 Jun 2017 12:15:21 -0400
Message-ID: <CALtoyonckmMUzLJtR=R5tw5TJNCi=2DXxXmvb+hugARmkOeQ9g@mail.gmail.com>
To: "Morgan, Keith" <kmorga07@harris.com>
Cc: Rick Taylor <rick@tropicalstormsoftware.com>, "manet@ietf.org" <manet@ietf.org>
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Subject: Re: [manet] Mail regarding draft-dlep-lid
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Hi,

So, what about the notion of allocating a 64-bit quantity for the LID? That
way, a MAC address would fit, and by definition, all LIDs would be the same
length. We can specify the characteristics of the data in the LID
(right-justify, fill character 0x00, etc). Or, we could even use the first
octet of that 64-bit quantity as a set of bit flags to indicate what's in
the LID (e.g., is it a MAC address, or an integer, or...)

Regards,
Stan


On Fri, Jun 2, 2017 at 3:58 AM, Morgan, Keith <kmorga07@harris.com> wrote:

> Hi,
>
> We have to provide the MAC address in the current protocol so we think it
> makes sense to use it if Link ID's are accepted.
>
> I think all Link ID's should be the same length in a session, to keep it
> simple.
>
> Regards
>
> Keith
>
> Keith Morgan
> Director of Engineering
> COMMUNICATION SYSTEMS / HARRIS DEFENCE LIMITED
> Office: +44 (0)1256 383132 / Mobile: +44 (0)7917 012248
> www.harris.com / Keith.Morgan@Harris.com
> Jays Close, Viables Estate, Basingstoke, Hampshire, RG22 4BA, United
> Kingdom
>
>
>
>
>
> Registered in England No. 2803090 Harris Defence Limited a UK Subsidiary
> of Harris Corporation, USA
> CONFIDENTIALITY NOTICE:  This email and any attachments may contain
> material that is "Harris Proprietary Information" for the sole use of the
> intended recipient.  Any review, reliance, distribution, disclosure, or
> forwarding without expressed permission is strictly prohibited.  If you a=
re
> not the intended recipient, please contact the sender and delete all copi=
es
> without reading, printing, or saving in any manner.  Thank You.
>
>
> -----Original Message-----
> From: Rick Taylor [mailto:rick@tropicalstormsoftware.com]
> Sent: 31 May 2017 15:57
> To: Morgan, Keith (Non U.S.); manet@ietf.org
> Subject: Re: [manet] Mail regarding draft-dlep-lid
>
> Hi Keith,
>
> Comments inline...
>
> On Wed, 2017-05-31 at 13:30 +0000, Morgan, Keith wrote:
> > Hello,
> >
> > I have been reviewing the proposed Link Identifier Extension to DLEP
> > and have the following comments:
>
> Thanks for the quick review!
>
> >
> > The focus of the proposal appears to be to enable Routers to identify
> > where they cannot reach Destinations via the MAC address provided in
> > the Destination Up message. This would be the case with our Modem.
> >
> > Our current implementation does use =E2=80=9Csleight-of-hand=E2=80=9D a=
nd will report
> > both the MAC address and IP address in the Destination Up message,
> > however the Destination is only reachable via its IP address.
>
> This is one of the use-cases I was trying to fix, so I'm glad it helps.
>
> >
> > The concept proposed appears sound; my immediate suggestion would be
> > to recommend a length of 6 bytes for the identifier, this would allow
> > the Modem to use the MAC address of the destination which should
> > ensure uniqueness while allowing the router to determine how to
> > address packets to the Destination based on the use of the Link
> > Identifier Data Item.
>
> 4 is only RECOMMENDED.  As a variable length field, Link Id's can be any
> length, so if you want to use 6, that's fine.  I only picked 4 as I
> imagined people had integer values and felt I had to recommend something =
to
> point people away from using SHA1 hashes or something huge (although they
> still can).
>
> It's interesting that your Link Ids actually are MACs, but by using Link
> Ids not MAC Address Data Items you are being explicit that the MACs can't
> be used in frames.  I hadn't thought of this use-case, but I'm glad it
> works for you!
>
> One thing that is probably missing is a requirement that all Link Ids
> should be the same length during a session.  Do people think this is a
> valid restriction?
>
> Cheers,
>
> Rick
> _______________________________________________
> manet mailing list
> manet@ietf.org
> https://www.ietf.org/mailman/listinfo/manet
>

--94eb2c08ee2c79a9b1055124b1a2
Content-Type: text/html; charset="UTF-8"
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<div dir=3D"ltr">Hi,=C2=A0<div><br></div><div>So, what about the notion of =
allocating a 64-bit quantity for the LID? That way, a MAC address would fit=
, and by definition, all LIDs would be the same length. We can specify the =
characteristics of the data in the LID (right-justify, fill character 0x00,=
 etc). Or, we could even use the first octet of that 64-bit quantity as a s=
et of bit flags to indicate what&#39;s in the LID (e.g., is it a MAC addres=
s, or an integer, or...)</div><div><br></div><div>Regards,</div><div>Stan</=
div><div><br></div></div><div class=3D"gmail_extra"><br><div class=3D"gmail=
_quote">On Fri, Jun 2, 2017 at 3:58 AM, Morgan, Keith <span dir=3D"ltr">&lt=
;<a href=3D"mailto:kmorga07@harris.com" target=3D"_blank">kmorga07@harris.c=
om</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"marg=
in:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
We have to provide the MAC address in the current protocol so we think it m=
akes sense to use it if Link ID&#39;s are accepted.<br>
<br>
I think all Link ID&#39;s should be the same length in a session, to keep i=
t simple.<br>
<br>
Regards<br>
=C2=A0<br>
Keith<br>
<br>
Keith Morgan<br>
Director of Engineering<br>
COMMUNICATION SYSTEMS / HARRIS DEFENCE LIMITED<br>
Office: <a href=3D"tel:%2B44%20%280%291256%20383132" value=3D"+441256383132=
">+44 (0)1256 383132</a> / Mobile: <a href=3D"tel:%2B44%20%280%297917%20012=
248" value=3D"+447917012248">+44 (0)7917 012248</a><br>
<a href=3D"http://www.harris.com" rel=3D"noreferrer" target=3D"_blank">www.=
harris.com</a> / Keith.Morgan@Harris.com<br>
Jays Close, Viables Estate, Basingstoke, Hampshire, RG22 4BA, United Kingdo=
m<br>
<br>
<br>
<br>
<br>
<br>
Registered in England No. 2803090 Harris Defence Limited a UK Subsidiary of=
 Harris Corporation, USA<br>
CONFIDENTIALITY NOTICE:=C2=A0 This email and any attachments may contain ma=
terial that is &quot;Harris Proprietary Information&quot; for the sole use =
of the intended recipient.=C2=A0 Any review, reliance, distribution, disclo=
sure, or forwarding without expressed permission is strictly prohibited.=C2=
=A0 If you are not the intended recipient, please contact the sender and de=
lete all copies without reading, printing, or saving in any manner.=C2=A0 T=
hank You.<br>
<br>
<br>
-----Original Message-----<br>
From: Rick Taylor [mailto:<a href=3D"mailto:rick@tropicalstormsoftware.com"=
>rick@<wbr>tropicalstormsoftware.com</a>]<br>
Sent: 31 May 2017 15:57<br>
To: Morgan, Keith (Non U.S.); <a href=3D"mailto:manet@ietf.org">manet@ietf.=
org</a><br>
Subject: Re: [manet] Mail regarding draft-dlep-lid<br>
<br>
Hi Keith,<br>
<br>
Comments inline...<br>
<br>
On Wed, 2017-05-31 at 13:30 +0000, Morgan, Keith wrote:<br>
&gt; Hello,<br>
&gt; =C2=A0<br>
&gt; I have been reviewing the proposed Link Identifier Extension to DLEP<b=
r>
&gt; and have the following comments:<br>
<br>
Thanks for the quick review!<br>
<br>
&gt; =C2=A0<br>
&gt; The focus of the proposal appears to be to enable Routers to identify<=
br>
&gt; where they cannot reach Destinations via the MAC address provided in<b=
r>
&gt; the Destination Up message. This would be the case with our Modem.<br>
&gt; =C2=A0<br>
&gt; Our current implementation does use =E2=80=9Csleight-of-hand=E2=80=9D =
and will report<br>
&gt; both the MAC address and IP address in the Destination Up message,<br>
&gt; however the Destination is only reachable via its IP address.<br>
<br>
This is one of the use-cases I was trying to fix, so I&#39;m glad it helps.=
<br>
<br>
&gt; =C2=A0<br>
&gt; The concept proposed appears sound; my immediate suggestion would be<b=
r>
&gt; to recommend a length of 6 bytes for the identifier, this would allow<=
br>
&gt; the Modem to use the MAC address of the destination which should<br>
&gt; ensure uniqueness while allowing the router to determine how to<br>
&gt; address packets to the Destination based on the use of the Link<br>
&gt; Identifier Data Item.<br>
<br>
4 is only RECOMMENDED.=C2=A0 As a variable length field, Link Id&#39;s can =
be any length, so if you want to use 6, that&#39;s fine.=C2=A0 I only picke=
d 4 as I imagined people had integer values and felt I had to recommend som=
ething to point people away from using SHA1 hashes or something huge (altho=
ugh they still can).<br>
<br>
It&#39;s interesting that your Link Ids actually are MACs, but by using Lin=
k Ids not MAC Address Data Items you are being explicit that the MACs can&#=
39;t be used in frames.=C2=A0 I hadn&#39;t thought of this use-case, but I&=
#39;m glad it works for you!<br>
<br>
One thing that is probably missing is a requirement that all Link Ids shoul=
d be the same length during a session.=C2=A0 Do people think this is a vali=
d restriction?<br>
<br>
Cheers,<br>
<br>
Rick<br>
______________________________<wbr>_________________<br>
manet mailing list<br>
<a href=3D"mailto:manet@ietf.org">manet@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/manet" rel=3D"noreferrer" =
target=3D"_blank">https://www.ietf.org/mailman/<wbr>listinfo/manet</a><br>
</blockquote></div><br></div>

--94eb2c08ee2c79a9b1055124b1a2--


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Thread-Topic: [manet] Mail regarding draft-dlep-lid
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In-Reply-To: <1496664069.3788.31.camel@tropicalstormsoftware.com>
References: <63448cdd41fa4c94a44a390dd10848a1@MLBXCH18.cs.myharris.net> <1496242619.3129.19.camel@tropicalstormsoftware.com> <61e159c5594246d8afa42b5ee5cda557@MLBXCH18.cs.myharris.net> <CALtoyonckmMUzLJtR=R5tw5TJNCi=2DXxXmvb+hugARmkOeQ9g@mail.gmail.com> <1496664069.3788.31.camel@tropicalstormsoftware.com>
From: Stan Ratliff <ratliffstan@gmail.com>
Date: Mon, 5 Jun 2017 09:58:31 -0400
Message-ID: <CALtoyokHwgnoR19Zw_BKDbhaRpx2bzguwZawwngzro4Qf6=3=Q@mail.gmail.com>
To: Rick Taylor <rick@tropicalstormsoftware.com>
Cc: "kmorga07@harris.com" <kmorga07@harris.com>, "manet@ietf.org" <manet@ietf.org>
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Subject: Re: [manet] Mail regarding draft-dlep-lid
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On Mon, Jun 5, 2017 at 8:01 AM, Rick Taylor <rick@tropicalstormsoftware.com=
>
wrote:

> Stan,
>
> I think you're over-complicating this.  Given a Data Item is a TLV,
> then as long as the lengths are consistent on a per-session basis, I'd
> be happy letting the modem implementer decide on the length.  As far as
> the router is concerned, it really doesn't matter.  Zero-padding fixed
> length fields seems a bit unwieldy...
>

I think some more is required. The consistent length is important, because
I can see a router implementation wanting to use the LID as a search key
in, for example, an AVL tree. Fixed-length keys are required there. And
let's consider a failing case - At Destination Up for the first "link", the
modem builds a TLV with length 4 and hands the router an integer. At
Destination Up for a second link, the modem builds a TLV with length 6, and
hands the router a MAC address...

What then? If you "kill" the Destination, then which one? Or, in other
words, which LID was "right" - the integer LID, or the MAC-based LID? Or,
should the entire Peer Session be brought down (which, as we've already
agreed, is an awfully big hammer)?

My thinking was (and still is) - if you're going to call for "consistent"
LIDs (length-wise), then you either have to explicitly state what that LID
size is (and possibly be prepared to negotiate the LID size), or allocate
sufficient "real-estate" to cover all the possibilities.

Regards,
Stan



>
> Rick
>
>
>
> On Sun, 2017-06-04 at 12:15 -0400, Stan Ratliff wrote:
> > Hi,
> >
> > So, what about the notion of allocating a 64-bit quantity for the
> > LID? That way, a MAC address would fit, and by definition, all LIDs
> > would be the same length. We can specify the characteristics of the
> > data in the LID (right-justify, fill character 0x00, etc). Or, we
> > could even use the first octet of that 64-bit quantity as a set of
> > bit flags to indicate what's in the LID (e.g., is it a MAC address,
> > or an integer, or...)
> >
> > Regards,
> > Stan
> >
> >
> > On Fri, Jun 2, 2017 at 3:58 AM, Morgan, Keith <kmorga07@harris.com>
> > wrote:
> > > Hi,
> > >
> > > We have to provide the MAC address in the current protocol so we
> > > think it makes sense to use it if Link ID's are accepted.
> > >
> > > I think all Link ID's should be the same length in a session, to
> > > keep it simple.
> > >
> > > Regards
> > >
> > > Keith
> > >
> > > Keith Morgan
> > > Director of Engineering
> > > COMMUNICATION SYSTEMS / HARRIS DEFENCE LIMITED
> > > Office: +44 (0)1256 383132 / Mobile: +44 (0)7917 012248
> > > www.harris.com / Keith.Morgan@Harris.com
> > > Jays Close, Viables Estate, Basingstoke, Hampshire, RG22 4BA,
> > > United Kingdom
> > >
> > >
> > >
> > >
> > >
> > > Registered in England No. 2803090 Harris Defence Limited a UK
> > > Subsidiary of Harris Corporation, USA
> > > CONFIDENTIALITY NOTICE:  This email and any attachments may contain
> > > material that is "Harris Proprietary Information" for the sole use
> > > of the intended recipient.  Any review, reliance, distribution,
> > > disclosure, or forwarding without expressed permission is strictly
> > > prohibited.  If you are not the intended recipient, please contact
> > > the sender and delete all copies without reading, printing, or
> > > saving in any manner.  Thank You.
> > >
> > >
> > > -----Original Message-----
> > > From: Rick Taylor [mailto:rick@tropicalstormsoftware.com]
> > > Sent: 31 May 2017 15:57
> > > To: Morgan, Keith (Non U.S.); manet@ietf.org
> > > Subject: Re: [manet] Mail regarding draft-dlep-lid
> > >
> > > Hi Keith,
> > >
> > > Comments inline...
> > >
> > > On Wed, 2017-05-31 at 13:30 +0000, Morgan, Keith wrote:
> > > > Hello,
> > > >
> > > > I have been reviewing the proposed Link Identifier Extension to
> > > DLEP
> > > > and have the following comments:
> > >
> > > Thanks for the quick review!
> > >
> > > >
> > > > The focus of the proposal appears to be to enable Routers to
> > > identify
> > > > where they cannot reach Destinations via the MAC address provided
> > > in
> > > > the Destination Up message. This would be the case with our
> > > Modem.
> > > >
> > > > Our current implementation does use =E2=80=9Csleight-of-hand=E2=80=
=9D and will
> > > report
> > > > both the MAC address and IP address in the Destination Up
> > > message,
> > > > however the Destination is only reachable via its IP address.
> > >
> > > This is one of the use-cases I was trying to fix, so I'm glad it
> > > helps.
> > >
> > > >
> > > > The concept proposed appears sound; my immediate suggestion would
> > > be
> > > > to recommend a length of 6 bytes for the identifier, this would
> > > allow
> > > > the Modem to use the MAC address of the destination which should
> > > > ensure uniqueness while allowing the router to determine how to
> > > > address packets to the Destination based on the use of the Link
> > > > Identifier Data Item.
> > >
> > > 4 is only RECOMMENDED.  As a variable length field, Link Id's can
> > > be any length, so if you want to use 6, that's fine.  I only picked
> > > 4 as I imagined people had integer values and felt I had to
> > > recommend something to point people away from using SHA1 hashes or
> > > something huge (although they still can).
> > >
> > > It's interesting that your Link Ids actually are MACs, but by using
> > > Link Ids not MAC Address Data Items you are being explicit that the
> > > MACs can't be used in frames.  I hadn't thought of this use-case,
> > > but I'm glad it works for you!
> > >
> > > One thing that is probably missing is a requirement that all Link
> > > Ids should be the same length during a session.  Do people think
> > > this is a valid restriction?
> > >
> > > Cheers,
> > >
> > > Rick
> > > _______________________________________________
> > > manet mailing list
> > > manet@ietf.org
> > > https://www.ietf.org/mailman/listinfo/manet
> > >

--94eb2c05b602ff9630055136e536
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><br><div class=3D"gmail_extra"><br><div class=3D"gmail_quo=
te">On Mon, Jun 5, 2017 at 8:01 AM, Rick Taylor <span dir=3D"ltr">&lt;<a hr=
ef=3D"mailto:rick@tropicalstormsoftware.com" target=3D"_blank">rick@tropica=
lstormsoftware.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quot=
e" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">=
Stan,<br>
<br>
I think you&#39;re over-complicating this.=C2=A0 Given a Data Item is a TLV=
,<br>
then as long as the lengths are consistent on a per-session basis, I&#39;d<=
br>
be happy letting the modem implementer decide on the length.=C2=A0 As far a=
s<br>
the router is concerned, it really doesn&#39;t matter.=C2=A0 Zero-padding f=
ixed<br>
length fields seems a bit unwieldy...<br></blockquote><div><br></div><div>I=
 think some more is required. The consistent length is important, because I=
 can see a router implementation wanting to use the LID as a search key in,=
 for example, an AVL tree. Fixed-length keys are required there. And let&#3=
9;s consider a failing case - At Destination Up for the first &quot;link&qu=
ot;, the modem builds a TLV with length 4 and hands the router an integer. =
At Destination Up for a second link, the modem builds a TLV with length 6, =
and hands the router a MAC address...</div><div><br></div><div>What then? I=
f you &quot;kill&quot; the Destination, then which one? Or, in other words,=
 which LID was &quot;right&quot; - the integer LID, or the MAC-based LID? O=
r, should the entire Peer Session be brought down (which, as we&#39;ve alre=
ady agreed, is an awfully big hammer)?</div><div><br></div><div>My thinking=
 was (and still is) - if you&#39;re going to call for &quot;consistent&quot=
; LIDs (length-wise), then you either have to explicitly state what that LI=
D size is (and possibly be prepared to negotiate the LID size), or allocate=
 sufficient &quot;real-estate&quot; to cover all the possibilities.</div><d=
iv><br></div><div>Regards,</div><div>Stan</div><div><br></div><div>=C2=A0</=
div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-lef=
t:1px #ccc solid;padding-left:1ex">
<br>
Rick<br>
<br>
<br>
<br>
On Sun, 2017-06-04 at 12:15 -0400, Stan Ratliff wrote:<br>
&gt; Hi,=C2=A0<br>
&gt;<br>
&gt; So, what about the notion of allocating a 64-bit quantity for the<br>
&gt; LID? That way, a MAC address would fit, and by definition, all LIDs<br=
>
&gt; would be the same length. We can specify the characteristics of the<br=
>
&gt; data in the LID (right-justify, fill character 0x00, etc). Or, we<br>
&gt; could even use the first octet of that 64-bit quantity as a set of<br>
&gt; bit flags to indicate what&#39;s in the LID (e.g., is it a MAC address=
,<br>
&gt; or an integer, or...)<br>
&gt;<br>
&gt; Regards,<br>
&gt; Stan<br>
&gt;<br>
&gt;<br>
&gt; On Fri, Jun 2, 2017 at 3:58 AM, Morgan, Keith &lt;<a href=3D"mailto:km=
orga07@harris.com">kmorga07@harris.com</a>&gt;<br>
&gt; wrote:<br>
&gt; &gt; Hi,<br>
&gt; &gt;<br>
&gt; &gt; We have to provide the MAC address in the current protocol so we<=
br>
&gt; &gt; think it makes sense to use it if Link ID&#39;s are accepted.<br>
&gt; &gt;<br>
&gt; &gt; I think all Link ID&#39;s should be the same length in a session,=
 to<br>
&gt; &gt; keep it simple.<br>
&gt; &gt;<br>
&gt; &gt; Regards<br>
&gt; &gt; =C2=A0<br>
&gt; &gt; Keith<br>
&gt; &gt;<br>
&gt; &gt; Keith Morgan<br>
&gt; &gt; Director of Engineering<br>
&gt; &gt; COMMUNICATION SYSTEMS / HARRIS DEFENCE LIMITED<br>
&gt; &gt; Office: <a href=3D"tel:%2B44%20%280%291256%20383132" value=3D"+44=
1256383132">+44 (0)1256 383132</a> / Mobile: <a href=3D"tel:%2B44%20%280%29=
7917%20012248" value=3D"+447917012248">+44 (0)7917 012248</a><br>
&gt; &gt; <a href=3D"http://www.harris.com" rel=3D"noreferrer" target=3D"_b=
lank">www.harris.com</a> / Keith.Morgan@Harris.com<br>
&gt; &gt; Jays Close, Viables Estate, Basingstoke, Hampshire, RG22 4BA,<br>
&gt; &gt; United Kingdom<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; &gt; Registered in England No. 2803090 Harris Defence Limited a UK<br>
&gt; &gt; Subsidiary of Harris Corporation, USA<br>
&gt; &gt; CONFIDENTIALITY NOTICE:=C2=A0 This email and any attachments may =
contain<br>
&gt; &gt; material that is &quot;Harris Proprietary Information&quot; for t=
he sole use<br>
&gt; &gt; of the intended recipient.=C2=A0 Any review, reliance, distributi=
on,<br>
&gt; &gt; disclosure, or forwarding without expressed permission is strictl=
y<br>
&gt; &gt; prohibited.=C2=A0 If you are not the intended recipient, please c=
ontact<br>
&gt; &gt; the sender and delete all copies without reading, printing, or<br=
>
&gt; &gt; saving in any manner.=C2=A0 Thank You.<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; &gt; -----Original Message-----<br>
&gt; &gt; From: Rick Taylor [mailto:<a href=3D"mailto:rick@tropicalstormsof=
tware.com">rick@<wbr>tropicalstormsoftware.com</a>]<br>
&gt; &gt; Sent: 31 May 2017 15:57<br>
&gt; &gt; To: Morgan, Keith (Non U.S.); <a href=3D"mailto:manet@ietf.org">m=
anet@ietf.org</a><br>
&gt; &gt; Subject: Re: [manet] Mail regarding draft-dlep-lid<br>
&gt; &gt;<br>
&gt; &gt; Hi Keith,<br>
&gt; &gt;<br>
&gt; &gt; Comments inline...<br>
&gt; &gt;<br>
&gt; &gt; On Wed, 2017-05-31 at 13:30 +0000, Morgan, Keith wrote:<br>
&gt; &gt; &gt; Hello,<br>
&gt; &gt; &gt; =C2=A0<br>
&gt; &gt; &gt; I have been reviewing the proposed Link Identifier Extension=
 to<br>
&gt; &gt; DLEP<br>
&gt; &gt; &gt; and have the following comments:<br>
&gt; &gt;<br>
&gt; &gt; Thanks for the quick review!<br>
&gt; &gt;<br>
&gt; &gt; &gt; =C2=A0<br>
&gt; &gt; &gt; The focus of the proposal appears to be to enable Routers to=
<br>
&gt; &gt; identify<br>
&gt; &gt; &gt; where they cannot reach Destinations via the MAC address pro=
vided<br>
&gt; &gt; in<br>
&gt; &gt; &gt; the Destination Up message. This would be the case with our<=
br>
&gt; &gt; Modem.<br>
&gt; &gt; &gt; =C2=A0<br>
&gt; &gt; &gt; Our current implementation does use =E2=80=9Csleight-of-hand=
=E2=80=9D and will<br>
&gt; &gt; report<br>
&gt; &gt; &gt; both the MAC address and IP address in the Destination Up<br=
>
&gt; &gt; message,<br>
&gt; &gt; &gt; however the Destination is only reachable via its IP address=
.<br>
&gt; &gt;<br>
&gt; &gt; This is one of the use-cases I was trying to fix, so I&#39;m glad=
 it<br>
&gt; &gt; helps.<br>
&gt; &gt;<br>
&gt; &gt; &gt; =C2=A0<br>
&gt; &gt; &gt; The concept proposed appears sound; my immediate suggestion =
would<br>
&gt; &gt; be<br>
&gt; &gt; &gt; to recommend a length of 6 bytes for the identifier, this wo=
uld<br>
&gt; &gt; allow<br>
&gt; &gt; &gt; the Modem to use the MAC address of the destination which sh=
ould<br>
&gt; &gt; &gt; ensure uniqueness while allowing the router to determine how=
 to<br>
&gt; &gt; &gt; address packets to the Destination based on the use of the L=
ink<br>
&gt; &gt; &gt; Identifier Data Item.<br>
&gt; &gt;<br>
&gt; &gt; 4 is only RECOMMENDED.=C2=A0 As a variable length field, Link Id&=
#39;s can<br>
&gt; &gt; be any length, so if you want to use 6, that&#39;s fine.=C2=A0 I =
only picked<br>
&gt; &gt; 4 as I imagined people had integer values and felt I had to<br>
&gt; &gt; recommend something to point people away from using SHA1 hashes o=
r<br>
&gt; &gt; something huge (although they still can).<br>
&gt; &gt;<br>
&gt; &gt; It&#39;s interesting that your Link Ids actually are MACs, but by=
 using<br>
&gt; &gt; Link Ids not MAC Address Data Items you are being explicit that t=
he<br>
&gt; &gt; MACs can&#39;t be used in frames.=C2=A0 I hadn&#39;t thought of t=
his use-case,<br>
&gt; &gt; but I&#39;m glad it works for you!<br>
&gt; &gt;<br>
&gt; &gt; One thing that is probably missing is a requirement that all Link=
<br>
&gt; &gt; Ids should be the same length during a session.=C2=A0 Do people t=
hink<br>
&gt; &gt; this is a valid restriction?<br>
&gt; &gt;<br>
&gt; &gt; Cheers,<br>
&gt; &gt;<br>
&gt; &gt; Rick<br>
&gt; &gt; ______________________________<wbr>_________________<br>
&gt; &gt; manet mailing list<br>
&gt; &gt; <a href=3D"mailto:manet@ietf.org">manet@ietf.org</a><br>
&gt; &gt; <a href=3D"https://www.ietf.org/mailman/listinfo/manet" rel=3D"no=
referrer" target=3D"_blank">https://www.ietf.org/mailman/<wbr>listinfo/mane=
t</a><br>
&gt; &gt; </blockquote></div><br></div></div>

--94eb2c05b602ff9630055136e536--


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From: Rick Taylor <rick@tropicalstormsoftware.com>
To: "ratliffstan@gmail.com" <ratliffstan@gmail.com>
CC: "kmorga07@harris.com" <kmorga07@harris.com>, "manet@ietf.org" <manet@ietf.org>
Thread-Topic: [manet] Mail regarding draft-dlep-lid
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Date: Mon, 5 Jun 2017 15:32:49 +0000
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References: <63448cdd41fa4c94a44a390dd10848a1@MLBXCH18.cs.myharris.net> <1496242619.3129.19.camel@tropicalstormsoftware.com> <61e159c5594246d8afa42b5ee5cda557@MLBXCH18.cs.myharris.net> <CALtoyonckmMUzLJtR=R5tw5TJNCi=2DXxXmvb+hugARmkOeQ9g@mail.gmail.com> <1496664069.3788.31.camel@tropicalstormsoftware.com> <CALtoyokHwgnoR19Zw_BKDbhaRpx2bzguwZawwngzro4Qf6=3=Q@mail.gmail.com>
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From nobody Mon Jun  5 09:13:57 2017
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References: <63448cdd41fa4c94a44a390dd10848a1@MLBXCH18.cs.myharris.net> <1496242619.3129.19.camel@tropicalstormsoftware.com> <61e159c5594246d8afa42b5ee5cda557@MLBXCH18.cs.myharris.net> <CALtoyonckmMUzLJtR=R5tw5TJNCi=2DXxXmvb+hugARmkOeQ9g@mail.gmail.com> <1496664069.3788.31.camel@tropicalstormsoftware.com> <CALtoyokHwgnoR19Zw_BKDbhaRpx2bzguwZawwngzro4Qf6=3=Q@mail.gmail.com> <1496676769.3788.60.camel@tropicalstormsoftware.com>
From: Stan Ratliff <ratliffstan@gmail.com>
Date: Mon, 5 Jun 2017 12:13:51 -0400
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To: Rick Taylor <rick@tropicalstormsoftware.com>
Cc: "kmorga07@harris.com" <kmorga07@harris.com>, "manet@ietf.org" <manet@ietf.org>
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Subject: Re: [manet] Mail regarding draft-dlep-lid
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On Mon, Jun 5, 2017 at 11:32 AM, Rick Taylor <rick@tropicalstormsoftware.com
> wrote:

> Stan,
>
> Comments inline...
>
> On Mon, 2017-06-05 at 09:58 -0400, Stan Ratliff wrote:
> >
> >
> > On Mon, Jun 5, 2017 at 8:01 AM, Rick Taylor <rick@tropicalstormsoftwa
> > re.com> wrote:
> > > Stan,
> > >
> > > I think you're over-complicating this.  Given a Data Item is a TLV,
> > > then as long as the lengths are consistent on a per-session basis,
> > > I'd
> > > be happy letting the modem implementer decide on the length.  As
> > > far as
> > > the router is concerned, it really doesn't matter.  Zero-padding
> > > fixed
> > > length fields seems a bit unwieldy...
> > I think some more is required. The consistent length is important,
> > because I can see a router implementation wanting to use the LID as a
> > search key in, for example, an AVL tree. Fixed-length keys are
> > required there.
>
> Okay, I'll agree with you here - consistent LID lengths make sense.
>  And, yes, I can see your argument that knowing the size beforehand
> does help with hardcoded value fields in search data structures.
> Although a malloc equivalent shouldn't hurt too much - hopefully no-one
> is writing routers in ADA.
>
> > And let's consider a failing case - At Destination Up for the first
> > "link", the modem builds a TLV with length 4 and hands the router an
> > integer. At Destination Up for a second link, the modem builds a TLV
> > with length 6, and hands the router a MAC address...
>
> Again, I agree.  If a modem announces the first LID with length 4, then
> all further LIDs (for that session) MUST be length 4.  Note however
> that one can mix and match LIDs with MAC Address Data Items.
>
> >
> > What then? If you "kill" the Destination, then which one? Or, in
> > other words, which LID was "right" - the integer LID, or the MAC-
> > based LID? Or, should the entire Peer Session be brought down (which,
> > as we've already agreed, is an awfully big hammer)?
>
> I think we are agreeing still: mismatched LIDs = Invalid Data status
> code and Terminate.
>
> >
> > My thinking was (and still is) - if you're going to call for
> > "consistent" LIDs (length-wise), then you either have to explicitly
> > state what that LID size is (and possibly be prepared to negotiate
> > the LID size), or allocate sufficient "real-estate" to cover all the
> > possibilities.
>
> I'll try a counter-argument:  In core DLEP, a MAC address can be 6 or 8
> octets - you don't know which until you get one, and I'm not sure if we
> specify if you are allowed to mix and match.  I suggest that LIDs
> should follow the same precedent.
>

It's not exactly the same, though. Here's the relevant text:

13.7.  MAC Address

   The MAC Address Data Item contains the address of the destination on
   the remote node.

   DLEP can support MAC addresses in either EUI-48 or EUI-64 format
   ("EUI" stands for "Extended Unique Identifier"), with the restriction
   that all MAC addresses for a given DLEP session MUST be in the same
   format and MUST be consistent with the MAC address format of the
   connected modem (e.g., if the modem is connected to the router with
   an EUI-48 MAC, all destination addresses via that modem MUST be
   expressed in EUI-48 format).

   Examples of a virtual destination would be (1) a multicast MAC
   address or (2) the broadcast MAC address (FF:FF:FF:FF:FF:FF).


The difference is that the type of MAC is enforced by the connection type
of the modem - so the router implementation *does* have a-priori knowledge
of the MAC length.



> I'm not immediately dismissing the suggestion of a "My LID length is X"
> Data Item for use in Session Init, but it could be seen as 'clunky'.
>
> The only other way I can see is to lift the restriction on LID
consistency, other than "they cannot clash". Then, you have to define how
"clashing" is determined (for interoperability). For example, "LIDs of
different length are to be compared assuming right-justify, fill character
0x00 to achieve equal length). Or something like that.

Regards,
Stan

--94eb2c05b602025c24055138ca98
Content-Type: text/html; charset="UTF-8"
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<div dir=3D"ltr"><br><div class=3D"gmail_extra"><br><div class=3D"gmail_quo=
te">On Mon, Jun 5, 2017 at 11:32 AM, Rick Taylor <span dir=3D"ltr">&lt;<a h=
ref=3D"mailto:rick@tropicalstormsoftware.com" target=3D"_blank">rick@tropic=
alstormsoftware.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quo=
te" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204=
);padding-left:1ex">Stan,<br>
<br>
Comments inline...<br>
<br>
On Mon, 2017-06-05 at 09:58 -0400, Stan Ratliff wrote:<br>
&gt;<br>
&gt;<br>
&gt; On Mon, Jun 5, 2017 at 8:01 AM, Rick Taylor &lt;rick@tropicalstormsoft=
wa<br>
&gt; <a href=3D"http://re.com" rel=3D"noreferrer" target=3D"_blank">re.com<=
/a>&gt; wrote:<br>
&gt; &gt; Stan,<br>
&gt; &gt;<br>
&gt; &gt; I think you&#39;re over-complicating this.=C2=A0 Given a Data Ite=
m is a TLV,<br>
&gt; &gt; then as long as the lengths are consistent on a per-session basis=
,<br>
&gt; &gt; I&#39;d<br>
&gt; &gt; be happy letting the modem implementer decide on the length.=C2=
=A0 As<br>
&gt; &gt; far as<br>
&gt; &gt; the router is concerned, it really doesn&#39;t matter.=C2=A0 Zero=
-padding<br>
&gt; &gt; fixed<br>
&gt; &gt; length fields seems a bit unwieldy...<br>
&gt; I think some more is required. The consistent length is important,<br>
&gt; because I can see a router implementation wanting to use the LID as a<=
br>
&gt; search key in, for example, an AVL tree. Fixed-length keys are<br>
&gt; required there.<br>
<br>
Okay, I&#39;ll agree with you here - consistent LID lengths make sense.<br>
=C2=A0And, yes, I can see your argument that knowing the size beforehand<br=
>
does help with hardcoded value fields in search data structures.<br>
Although a malloc equivalent shouldn&#39;t hurt too much - hopefully no-one=
<br>
is writing routers in ADA.<br>
<br>
&gt; And let&#39;s consider a failing case - At Destination Up for the firs=
t<br>
&gt; &quot;link&quot;, the modem builds a TLV with length 4 and hands the r=
outer an<br>
&gt; integer. At Destination Up for a second link, the modem builds a TLV<b=
r>
&gt; with length 6, and hands the router a MAC address...<br>
<br>
Again, I agree.=C2=A0 If a modem announces the first LID with length 4, the=
n<br>
all further LIDs (for that session) MUST be length 4.=C2=A0 Note however<br=
>
that one can mix and match LIDs with MAC Address Data Items.<br>
<br>
&gt;<br>
&gt; What then? If you &quot;kill&quot; the Destination, then which one? Or=
, in<br>
&gt; other words, which LID was &quot;right&quot; - the integer LID, or the=
 MAC-<br>
&gt; based LID? Or, should the entire Peer Session be brought down (which,<=
br>
&gt; as we&#39;ve already agreed, is an awfully big hammer)?<br>
<br>
I think we are agreeing still: mismatched LIDs =3D Invalid Data status<br>
code and Terminate.<br>
<br>
&gt;<br>
&gt; My thinking was (and still is) - if you&#39;re going to call for<br>
&gt; &quot;consistent&quot; LIDs (length-wise), then you either have to exp=
licitly<br>
&gt; state what that LID size is (and possibly be prepared to negotiate<br>
&gt; the LID size), or allocate sufficient &quot;real-estate&quot; to cover=
 all the<br>
&gt; possibilities.<br>
<br>
I&#39;ll try a counter-argument: =C2=A0In core DLEP, a MAC address can be 6=
 or 8<br>
octets - you don&#39;t know which until you get one, and I&#39;m not sure i=
f we<br>
specify if you are allowed to mix and match.=C2=A0 I suggest that LIDs<br>
should follow the same precedent.<br></blockquote><div><br></div><div>It&#3=
9;s not exactly the same, though. Here&#39;s the relevant text:=C2=A0</div>=
<div><br></div><div><pre>13.7.  MAC Address

   The MAC Address Data Item contains the address of the destination on
   the remote node.

   DLEP can support MAC addresses in either EUI-48 or EUI-64 format
   (&quot;EUI&quot; stands for &quot;Extended Unique Identifier&quot;), wit=
h the restriction
   that all MAC addresses for a given DLEP session MUST be in the same
   format and MUST be consistent with the MAC address format of the
   connected modem (e.g., if the modem is connected to the router with
   an EUI-48 MAC, all destination addresses via that modem MUST be
   expressed in EUI-48 format).

   Examples of a virtual destination would be (1) a multicast MAC
   address or (2) the broadcast MAC address (FF:FF:FF:FF:FF:FF).</pre><pre>=
<br></pre></div><div>The difference is that the type of MAC is enforced by =
the connection type of the modem - so the router implementation *does* have=
 a-priori knowledge of the MAC length.=C2=A0</div><div><br></div><div>=C2=
=A0=C2=A0</div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0p=
x 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
I&#39;m not immediately dismissing the suggestion of a &quot;My LID length =
is X&quot;<br>
Data Item for use in Session Init, but it could be seen as &#39;clunky&#39;=
.<br><br></blockquote><div>The only other way I can see is to lift the rest=
riction on LID consistency, other than &quot;they cannot clash&quot;. Then,=
 you have to define how &quot;clashing&quot; is determined (for interoperab=
ility). For example, &quot;LIDs of different length are to be compared assu=
ming right-justify, fill character 0x00 to achieve equal length). Or someth=
ing like that.=C2=A0</div><div><br></div><div>Regards,</div><div>Stan</div>=
<div>=C2=A0</div></div><br></div></div>

--94eb2c05b602025c24055138ca98--


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Subject: [manet] Document Action: 'Multipath Extension for the Optimized Link State Routing Protocol version 2 (OLSRv2)' to Experimental RFC (draft-ietf-manet-olsrv2-multipath-15.txt)
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The IESG has approved the following document:
- 'Multipath Extension for the Optimized Link State Routing Protocol
   version 2 (OLSRv2)'
  (draft-ietf-manet-olsrv2-multipath-15.txt) as Experimental RFC

This document is the product of the Mobile Ad-hoc Networks Working Group.

The IESG contact persons are Alvaro Retana, Alia Atlas and Deborah Brungard.

A URL of this Internet Draft is:
https://datatracker.ietf.org/doc/draft-ietf-manet-olsrv2-multipath/





Technical Summary

   This document describes an experimental extension of the 
   OLSRv2 protocol that allows for multiple disjoint paths through 
   a MANET network for a source-destination pair. Multiple paths 
   can be used to increase throughput in the MANET, provide load 
   balancing, and improve forwarding reliability.

Working Group Summary

   The document was thoroughly reviewed in the Working Group. 
   There were multiple Last Calls on the document - during previous 
   Last Calls, issues were discovered, discussed, and resolved. The 
   working group reached consensus with the extension, and no issues 
   remain.

Document Quality

   There are three open-source multi-path OLSRv2 implementations available
   for the purpose of proof-of-concept, network simulation, and field test.
   Vendors have not indicated plans to implement on a commercial level, hence 
   part of rationale for making this document Experimental. The document was 
   extensively reviewed by Christopher Dearlove, who merits special mention.

Personnel

   Stan Ratliff (sratliff@idirect.net) is the Document Shepherd. 
   Alvaro Retana (aretana@cisco.com) is the Responsible Area Director.


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CC: manet-chairs@ietf.org, draft-ietf-manet-rfc5444-usage@ietf.org, manet@ietf.org, bebemaster@gmail.com, aretana@cisco.com, Justin Dean <bebemaster@gmail.com>
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Subject: [manet] Last Call: <draft-ietf-manet-rfc5444-usage-06.txt> (Rules for Designing Protocols Using the RFC 5444 Generalized Packet/ Message Format) to Proposed Standard
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The IESG has received a request from the Mobile Ad-hoc Networks WG (manet) to
consider the following document: - 'Rules for Designing Protocols Using the
RFC 5444 Generalized Packet/
   Message Format'
  <draft-ietf-manet-rfc5444-usage-06.txt> as Proposed Standard

The IESG plans to make a decision in the next few weeks, and solicits final
comments on this action. Please send substantive comments to the
ietf@ietf.org mailing lists by 2017-06-29. Exceptionally, comments may be
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Abstract


   RFC 5444 specifies a generalized MANET packet/message format and
   describes an intended use for multiplexed MANET routing protocol
   messages that is mandated to use on the port/protocol specified by
   RFC 5498.  This document updates RFC 5444 by providing rules and
   recommendations for how the multiplexer operates and how protocols
   can use the packet/message format.  In particular, the mandatory
   rules prohibit a number of uses that have been suggested in various
   proposals, and which would have led to interoperability problems, to
   the impediment of protocol extension development, and to an inability
   to use optional generic parsers.




The file can be obtained via
https://datatracker.ietf.org/doc/draft-ietf-manet-rfc5444-usage/

IESG discussion can be tracked via
https://datatracker.ietf.org/doc/draft-ietf-manet-rfc5444-usage/ballot/


No IPR declarations have been submitted directly on this I-D.





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On Mon, Jun 19, 2017 at 10:20 AM, Rick Taylor <
rick@tropicalstormsoftware.com> wrote:

> All,
>
> I've been mulling this over.
>
> How about the LID length MUST be the same as the MAC, so it's up to the
> advertiser of the LID to bit pack?
>

Does that mean that if a modem is using EUI-64 MACs, then the LIDs are 64
bits as well? I'm OK with that, I just think we need to state it.
Also, I think there should be a sentence about LIDs not being duplicated
(and, in fact, that a LID MUST NOT duplicate an existing MAC, or
vice-versa). I'd think that a duplicate LID on Destination Up would be
rejected, and the Destination would not be seen as Up (Destination-level
error, NOT a peer session level error).


>
> This seems to work with existing use cases, and avoids the need for LID
> length negotiation.  The only down-side I can see is that 2^48 LIDs is
> a common maximum, but that seems plenty currently.
>

Yeah, I'm thinking that 1 modem supporting 2^48 links will cause insanity
well before DLEP has a problem... ;-)

Regards,
Stan


> Thoughts?
>
> Rick

--001a113fb680cd7ae20552510605
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><br><div class=3D"gmail_extra"><br><div class=3D"gmail_quo=
te">On Mon, Jun 19, 2017 at 10:20 AM, Rick Taylor <span dir=3D"ltr">&lt;<a =
href=3D"mailto:rick@tropicalstormsoftware.com" target=3D"_blank">rick@tropi=
calstormsoftware.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_qu=
ote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex=
">All,<br>
<br>
I&#39;ve been mulling this over.<br>
<br>
How about the LID length MUST be the same as the MAC, so it&#39;s up to the=
<br>
advertiser of the LID to bit pack?<br></blockquote><div><br></div><div>Does=
 that mean that if a modem is using EUI-64 MACs, then the LIDs are 64 bits =
as well? I&#39;m OK with that, I just think we need to state it.=C2=A0</div=
><div>Also, I think there should be a sentence about LIDs not being duplica=
ted (and, in fact, that a LID MUST NOT duplicate an existing MAC, or vice-v=
ersa). I&#39;d think that a duplicate LID on Destination Up would be reject=
ed, and the Destination would not be seen as Up (Destination-level error, N=
OT a peer session level error).</div><div>=C2=A0</div><blockquote class=3D"=
gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-=
left:1ex">
<br>
This seems to work with existing use cases, and avoids the need for LID<br>
length negotiation.=C2=A0 The only down-side I can see is that 2^48 LIDs is=
<br>
a common maximum, but that seems plenty currently.<br></blockquote><div><br=
></div><div>Yeah, I&#39;m thinking that 1 modem supporting 2^48 links will =
cause insanity well before DLEP has a problem... ;-)</div><div>=C2=A0</div>=
<div>Regards,</div><div>Stan</div><div><br></div><blockquote class=3D"gmail=
_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:=
1ex">
<br>
Thoughts?<br>
<span class=3D"HOEnZb"><font color=3D"#888888"><br>
Rick</font></span></blockquote></div><br></div></div>

--001a113fb680cd7ae20552510605--


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From: "Morgan, Keith" <kmorga07@harris.com>
To: Stan Ratliff <ratliffstan@gmail.com>, Rick Taylor <rick@tropicalstormsoftware.com>
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Thread-Topic: [manet] DLEP LID lengths
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From nobody Mon Jun 19 08:53:52 2017
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From: Rick Taylor <rick@tropicalstormsoftware.com>
To: "ratliffstan@gmail.com" <ratliffstan@gmail.com>
CC: "kmorga07@harris.com" <kmorga07@harris.com>, "manet@ietf.org" <manet@ietf.org>
Thread-Topic: [manet] DLEP LID lengths
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Date: Mon, 19 Jun 2017 15:53:14 +0000
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References: <63448cdd41fa4c94a44a390dd10848a1@MLBXCH18.cs.myharris.net> <1496242619.3129.19.camel@tropicalstormsoftware.com> <61e159c5594246d8afa42b5ee5cda557@MLBXCH18.cs.myharris.net> <CALtoyonckmMUzLJtR=R5tw5TJNCi=2DXxXmvb+hugARmkOeQ9g@mail.gmail.com> <1496664069.3788.31.camel@tropicalstormsoftware.com> <CALtoyokHwgnoR19Zw_BKDbhaRpx2bzguwZawwngzro4Qf6=3=Q@mail.gmail.com> <1496676769.3788.60.camel@tropicalstormsoftware.com> <CALtoyokRc0EWLP7D3RyfcZ57WTbTvsGXUPiSnrYMgBaYTTVvFA@mail.gmail.com> <1497882042.2674.34.camel@tropicalstormsoftware.com> <CALtoyomskw-WUEuRE-Zy+9tKvChbJaf--M4hhyHY_fdjWLp+mQ@mail.gmail.com>
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From nobody Mon Jun 19 09:03:50 2017
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From: Rick Taylor <rick@tropicalstormsoftware.com>
To: "kmorga07@harris.com" <kmorga07@harris.com>, "ratliffstan@gmail.com" <ratliffstan@gmail.com>
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Thread-Topic: [manet] DLEP LID lengths
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References: <63448cdd41fa4c94a44a390dd10848a1@MLBXCH18.cs.myharris.net> <1496242619.3129.19.camel@tropicalstormsoftware.com> <61e159c5594246d8afa42b5ee5cda557@MLBXCH18.cs.myharris.net> <CALtoyonckmMUzLJtR=R5tw5TJNCi=2DXxXmvb+hugARmkOeQ9g@mail.gmail.com> <1496664069.3788.31.camel@tropicalstormsoftware.com> <CALtoyokHwgnoR19Zw_BKDbhaRpx2bzguwZawwngzro4Qf6=3=Q@mail.gmail.com> <1496676769.3788.60.camel@tropicalstormsoftware.com> <CALtoyokRc0EWLP7D3RyfcZ57WTbTvsGXUPiSnrYMgBaYTTVvFA@mail.gmail.com> <1497882042.2674.34.camel@tropicalstormsoftware.com> <CALtoyomskw-WUEuRE-Zy+9tKvChbJaf--M4hhyHY_fdjWLp+mQ@mail.gmail.com> <3beac7a34e354c389363008b13f3d4ef@ROCXCH12.cs.myharris.net>
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References: <63448cdd41fa4c94a44a390dd10848a1@MLBXCH18.cs.myharris.net> <1496242619.3129.19.camel@tropicalstormsoftware.com> <61e159c5594246d8afa42b5ee5cda557@MLBXCH18.cs.myharris.net> <CALtoyonckmMUzLJtR=R5tw5TJNCi=2DXxXmvb+hugARmkOeQ9g@mail.gmail.com> <1496664069.3788.31.camel@tropicalstormsoftware.com> <CALtoyokHwgnoR19Zw_BKDbhaRpx2bzguwZawwngzro4Qf6=3=Q@mail.gmail.com> <1496676769.3788.60.camel@tropicalstormsoftware.com> <CALtoyokRc0EWLP7D3RyfcZ57WTbTvsGXUPiSnrYMgBaYTTVvFA@mail.gmail.com> <1497882042.2674.34.camel@tropicalstormsoftware.com> <CALtoyomskw-WUEuRE-Zy+9tKvChbJaf--M4hhyHY_fdjWLp+mQ@mail.gmail.com> <1497887594.2674.56.camel@tropicalstormsoftware.com>
From: Stan Ratliff <ratliffstan@gmail.com>
Date: Mon, 19 Jun 2017 12:06:01 -0400
Message-ID: <CALtoyo=PCVBBiKp=DXLX=-r-20MiKZPzhqs4nPpCs7CXiC_u4A@mail.gmail.com>
To: Rick Taylor <rick@tropicalstormsoftware.com>
Cc: "kmorga07@harris.com" <kmorga07@harris.com>, "manet@ietf.org" <manet@ietf.org>
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Subject: Re: [manet] DLEP LID lengths
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On Mon, Jun 19, 2017 at 11:53 AM, Rick Taylor <
rick@tropicalstormsoftware.com> wrote:

> Comments inline...
>
> On Mon, 2017-06-19 at 10:34 -0400, Stan Ratliff wrote:
> >
> >
> > On Mon, Jun 19, 2017 at 10:20 AM, Rick Taylor <rick@tropicalstormsoft
> > ware.com> wrote:
> > > All,
> > >
> > > I've been mulling this over.
> > >
> > > How about the LID length MUST be the same as the MAC, so it's up to
> > > the
> > > advertiser of the LID to bit pack?
> > Does that mean that if a modem is using EUI-64 MACs, then the LIDs
> > are 64 bits as well? I'm OK with that, I just think we need to state
> > it.
>
> Yes, that's the idea.  A draft-01 will be forthcoming...
>
>
> > Also, I think there should be a sentence about LIDs not being
> > duplicated (and, in fact, that a LID MUST NOT duplicate an existing
> > MAC, or vice-versa). I'd think that a duplicate LID on Destination Up
> > would be rejected, and the Destination would not be seen as Up
> > (Destination-level error, NOT a peer session level error).
>
> I'm not sure about this.  I can see why it seems helpful:
> an implementation can keep one data structure for all destinations,
> physical/logical/LID.  But, I can't see a simple way for a dual-mode
> modem implementation to ensure no clashes.
>
> Part of the reasons behind LIDs was to produce a separate namespace.
> Forcing and implementation to maintain 2 datastructures (of the same
> type) for the two namespaces seems little extra effort (again, ignoring
> ADA implementations).
>

Yes, implementations could maintain 2 information bases. But especially
since the LID length will be the same as MAC length, it's an easy extension
to put both in the same tree.
As for how to keep them from clashing - both modems and routers have to
maintain a database (or set of in-memory structures) to be able to report
stats and keep track of what's going on. Since LIDs are "made up", while
MACs are "architected", it would seem pretty easy to:
1. Make a LID up
2. Check to see if that's already in the tree, and if so,
3. Make another one up...

I could even see a pretty straightforward implementation where LIDs are
assigned based on a monotonically increasing counter. I've never see a MAC
address of 00:00:00:00:00:01, 00:00:00:00:00:02, etc... however the
implementation decides to pack the LID into a 48-bit (or 64-bit) quantity.

Regards,
Stan



>
> >
> > >
> > > This seems to work with existing use cases, and avoids the need for
> > > LID
> > > length negotiation.  The only down-side I can see is that 2^48 LIDs
> > > is
> > > a common maximum, but that seems plenty currently.
> > Yeah, I'm thinking that 1 modem supporting 2^48 links will cause
> > insanity well before DLEP has a problem... ;-)
>
> As was pointed out to me: 640Kbytes has traditionally been plenty, 2^48
> looks like carelessness! :-)
>
> Cheers,
>
> Rick
>

--001a11473e42fe1d6f0552524f32
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><br><div class=3D"gmail_extra"><br><div class=3D"gmail_quo=
te">On Mon, Jun 19, 2017 at 11:53 AM, Rick Taylor <span dir=3D"ltr">&lt;<a =
href=3D"mailto:rick@tropicalstormsoftware.com" target=3D"_blank">rick@tropi=
calstormsoftware.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_qu=
ote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex=
">Comments inline...<br>
<br>
On Mon, 2017-06-19 at 10:34 -0400, Stan Ratliff wrote:<br>
&gt;<br>
&gt;<br>
&gt; On Mon, Jun 19, 2017 at 10:20 AM, Rick Taylor &lt;rick@tropicalstormso=
ft<br>
&gt; <a href=3D"http://ware.com" rel=3D"noreferrer" target=3D"_blank">ware.=
com</a>&gt; wrote:<br>
&gt; &gt; All,<br>
&gt; &gt;<br>
&gt; &gt; I&#39;ve been mulling this over.<br>
&gt; &gt;<br>
&gt; &gt; How about the LID length MUST be the same as the MAC, so it&#39;s=
 up to<br>
&gt; &gt; the<br>
&gt; &gt; advertiser of the LID to bit pack?<br>
&gt; Does that mean that if a modem is using EUI-64 MACs, then the LIDs<br>
&gt; are 64 bits as well? I&#39;m OK with that, I just think we need to sta=
te<br>
&gt; it.=C2=A0<br>
<br>
Yes, that&#39;s the idea.=C2=A0 A draft-01 will be forthcoming...<br>
<br>
<br>
&gt; Also, I think there should be a sentence about LIDs not being<br>
&gt; duplicated (and, in fact, that a LID MUST NOT duplicate an existing<br=
>
&gt; MAC, or vice-versa). I&#39;d think that a duplicate LID on Destination=
 Up<br>
&gt; would be rejected, and the Destination would not be seen as Up<br>
&gt; (Destination-level error, NOT a peer session level error).<br>
<br>
I&#39;m not sure about this.=C2=A0 I can see why it seems helpful:<br>
an=C2=A0implementation can keep one data structure for all destinations,<br=
>
physical/logical/LID.=C2=A0 But, I can&#39;t see a simple way for a dual-mo=
de<br>
modem implementation to ensure no clashes.<br>
<br>
Part of the reasons behind LIDs was to produce a separate namespace.<br>
Forcing and implementation to maintain 2 datastructures (of the same<br>
type) for the two namespaces seems little extra effort (again, ignoring<br>
ADA implementations).<br></blockquote><div><br></div><div>Yes, implementati=
ons could maintain 2 information bases. But especially since the LID length=
 will be the same as MAC length, it&#39;s an easy extension to put both in =
the same tree.</div><div>As for how to keep them from clashing - both modem=
s and routers have to maintain a database (or set of in-memory structures) =
to be able to report stats and keep track of what&#39;s going on. Since LID=
s are &quot;made up&quot;, while MACs are &quot;architected&quot;, it would=
 seem pretty easy to:=C2=A0</div><div>1. Make a LID up</div><div>2. Check t=
o see if that&#39;s already in the tree, and if so,</div><div>3. Make anoth=
er one up...=C2=A0</div><div><br></div><div>I could even see a pretty strai=
ghtforward implementation where LIDs are assigned based on a monotonically =
increasing counter. I&#39;ve never see a MAC address of 00:00:00:00:00:01, =
00:00:00:00:00:02, etc... however the implementation decides to pack the LI=
D into a 48-bit (or 64-bit) quantity.</div><div><br></div><div>Regards,</di=
v><div>Stan</div><div><br></div><div>=C2=A0</div><blockquote class=3D"gmail=
_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:=
1ex">
<br>
&gt; =C2=A0<br>
&gt; &gt;<br>
&gt; &gt; This seems to work with existing use cases, and avoids the need f=
or<br>
&gt; &gt; LID<br>
&gt; &gt; length negotiation.=C2=A0 The only down-side I can see is that 2^=
48 LIDs<br>
&gt; &gt; is<br>
&gt; &gt; a common maximum, but that seems plenty currently.<br>
&gt; Yeah, I&#39;m thinking that 1 modem supporting 2^48 links will cause<b=
r>
&gt; insanity well before DLEP has a problem... ;-)<br>
<br>
As was pointed out to me: 640Kbytes has traditionally been plenty, 2^48<br>
looks like carelessness! :-)<br>
<br>
Cheers,<br>
<br>
Rick<br>
</blockquote></div><br></div></div>

--001a11473e42fe1d6f0552524f32--


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References: <63448cdd41fa4c94a44a390dd10848a1@MLBXCH18.cs.myharris.net> <1496242619.3129.19.camel@tropicalstormsoftware.com> <61e159c5594246d8afa42b5ee5cda557@MLBXCH18.cs.myharris.net> <CALtoyonckmMUzLJtR=R5tw5TJNCi=2DXxXmvb+hugARmkOeQ9g@mail.gmail.com> <1496664069.3788.31.camel@tropicalstormsoftware.com> <CALtoyokHwgnoR19Zw_BKDbhaRpx2bzguwZawwngzro4Qf6=3=Q@mail.gmail.com> <1496676769.3788.60.camel@tropicalstormsoftware.com> <CALtoyokRc0EWLP7D3RyfcZ57WTbTvsGXUPiSnrYMgBaYTTVvFA@mail.gmail.com> <1497882042.2674.34.camel@tropicalstormsoftware.com> <CALtoyomskw-WUEuRE-Zy+9tKvChbJaf--M4hhyHY_fdjWLp+mQ@mail.gmail.com> <1497887594.2674.56.camel@tropicalstormsoftware.com>
From: Stan Ratliff <ratliffstan@gmail.com>
Date: Mon, 19 Jun 2017 12:06:01 -0400
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To: Rick Taylor <rick@tropicalstormsoftware.com>
Cc: "kmorga07@harris.com" <kmorga07@harris.com>, "manet@ietf.org" <manet@ietf.org>
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Subject: Re: [manet] DLEP LID lengths
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--94eb2c07e70611392405525250b9
Content-Type: text/plain; charset="UTF-8"

On Mon, Jun 19, 2017 at 11:53 AM, Rick Taylor <
rick@tropicalstormsoftware.com> wrote:

> Comments inline...
>
> On Mon, 2017-06-19 at 10:34 -0400, Stan Ratliff wrote:
> >
> >
> > On Mon, Jun 19, 2017 at 10:20 AM, Rick Taylor <rick@tropicalstormsoft
> > ware.com> wrote:
> > > All,
> > >
> > > I've been mulling this over.
> > >
> > > How about the LID length MUST be the same as the MAC, so it's up to
> > > the
> > > advertiser of the LID to bit pack?
> > Does that mean that if a modem is using EUI-64 MACs, then the LIDs
> > are 64 bits as well? I'm OK with that, I just think we need to state
> > it.
>
> Yes, that's the idea.  A draft-01 will be forthcoming...
>
>
> > Also, I think there should be a sentence about LIDs not being
> > duplicated (and, in fact, that a LID MUST NOT duplicate an existing
> > MAC, or vice-versa). I'd think that a duplicate LID on Destination Up
> > would be rejected, and the Destination would not be seen as Up
> > (Destination-level error, NOT a peer session level error).
>
> I'm not sure about this.  I can see why it seems helpful:
> an implementation can keep one data structure for all destinations,
> physical/logical/LID.  But, I can't see a simple way for a dual-mode
> modem implementation to ensure no clashes.
>
> Part of the reasons behind LIDs was to produce a separate namespace.
> Forcing and implementation to maintain 2 datastructures (of the same
> type) for the two namespaces seems little extra effort (again, ignoring
> ADA implementations).
>

Yes, implementations could maintain 2 information bases. But especially
since the LID length will be the same as MAC length, it's an easy extension
to put both in the same tree.
As for how to keep them from clashing - both modems and routers have to
maintain a database (or set of in-memory structures) to be able to report
stats and keep track of what's going on. Since LIDs are "made up", while
MACs are "architected", it would seem pretty easy to:
1. Make a LID up
2. Check to see if that's already in the tree, and if so,
3. Make another one up...

I could even see a pretty straightforward implementation where LIDs are
assigned based on a monotonically increasing counter. I've never see a MAC
address of 00:00:00:00:00:01, 00:00:00:00:00:02, etc... however the
implementation decides to pack the LID into a 48-bit (or 64-bit) quantity.

Regards,
Stan



>
> >
> > >
> > > This seems to work with existing use cases, and avoids the need for
> > > LID
> > > length negotiation.  The only down-side I can see is that 2^48 LIDs
> > > is
> > > a common maximum, but that seems plenty currently.
> > Yeah, I'm thinking that 1 modem supporting 2^48 links will cause
> > insanity well before DLEP has a problem... ;-)
>
> As was pointed out to me: 640Kbytes has traditionally been plenty, 2^48
> looks like carelessness! :-)
>
> Cheers,
>
> Rick
>

--94eb2c07e70611392405525250b9
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><br><div class=3D"gmail_extra"><br><div class=3D"gmail_quo=
te">On Mon, Jun 19, 2017 at 11:53 AM, Rick Taylor <span dir=3D"ltr">&lt;<a =
href=3D"mailto:rick@tropicalstormsoftware.com" target=3D"_blank">rick@tropi=
calstormsoftware.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_qu=
ote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex=
">Comments inline...<br>
<br>
On Mon, 2017-06-19 at 10:34 -0400, Stan Ratliff wrote:<br>
&gt;<br>
&gt;<br>
&gt; On Mon, Jun 19, 2017 at 10:20 AM, Rick Taylor &lt;rick@tropicalstormso=
ft<br>
&gt; <a href=3D"http://ware.com" rel=3D"noreferrer" target=3D"_blank">ware.=
com</a>&gt; wrote:<br>
&gt; &gt; All,<br>
&gt; &gt;<br>
&gt; &gt; I&#39;ve been mulling this over.<br>
&gt; &gt;<br>
&gt; &gt; How about the LID length MUST be the same as the MAC, so it&#39;s=
 up to<br>
&gt; &gt; the<br>
&gt; &gt; advertiser of the LID to bit pack?<br>
&gt; Does that mean that if a modem is using EUI-64 MACs, then the LIDs<br>
&gt; are 64 bits as well? I&#39;m OK with that, I just think we need to sta=
te<br>
&gt; it.=C2=A0<br>
<br>
Yes, that&#39;s the idea.=C2=A0 A draft-01 will be forthcoming...<br>
<br>
<br>
&gt; Also, I think there should be a sentence about LIDs not being<br>
&gt; duplicated (and, in fact, that a LID MUST NOT duplicate an existing<br=
>
&gt; MAC, or vice-versa). I&#39;d think that a duplicate LID on Destination=
 Up<br>
&gt; would be rejected, and the Destination would not be seen as Up<br>
&gt; (Destination-level error, NOT a peer session level error).<br>
<br>
I&#39;m not sure about this.=C2=A0 I can see why it seems helpful:<br>
an=C2=A0implementation can keep one data structure for all destinations,<br=
>
physical/logical/LID.=C2=A0 But, I can&#39;t see a simple way for a dual-mo=
de<br>
modem implementation to ensure no clashes.<br>
<br>
Part of the reasons behind LIDs was to produce a separate namespace.<br>
Forcing and implementation to maintain 2 datastructures (of the same<br>
type) for the two namespaces seems little extra effort (again, ignoring<br>
ADA implementations).<br></blockquote><div><br></div><div>Yes, implementati=
ons could maintain 2 information bases. But especially since the LID length=
 will be the same as MAC length, it&#39;s an easy extension to put both in =
the same tree.</div><div>As for how to keep them from clashing - both modem=
s and routers have to maintain a database (or set of in-memory structures) =
to be able to report stats and keep track of what&#39;s going on. Since LID=
s are &quot;made up&quot;, while MACs are &quot;architected&quot;, it would=
 seem pretty easy to:=C2=A0</div><div>1. Make a LID up</div><div>2. Check t=
o see if that&#39;s already in the tree, and if so,</div><div>3. Make anoth=
er one up...=C2=A0</div><div><br></div><div>I could even see a pretty strai=
ghtforward implementation where LIDs are assigned based on a monotonically =
increasing counter. I&#39;ve never see a MAC address of 00:00:00:00:00:01, =
00:00:00:00:00:02, etc... however the implementation decides to pack the LI=
D into a 48-bit (or 64-bit) quantity.</div><div><br></div><div>Regards,</di=
v><div>Stan</div><div><br></div><div>=C2=A0</div><blockquote class=3D"gmail=
_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:=
1ex">
<br>
&gt; =C2=A0<br>
&gt; &gt;<br>
&gt; &gt; This seems to work with existing use cases, and avoids the need f=
or<br>
&gt; &gt; LID<br>
&gt; &gt; length negotiation.=C2=A0 The only down-side I can see is that 2^=
48 LIDs<br>
&gt; &gt; is<br>
&gt; &gt; a common maximum, but that seems plenty currently.<br>
&gt; Yeah, I&#39;m thinking that 1 modem supporting 2^48 links will cause<b=
r>
&gt; insanity well before DLEP has a problem... ;-)<br>
<br>
As was pointed out to me: 640Kbytes has traditionally been plenty, 2^48<br>
looks like carelessness! :-)<br>
<br>
Cheers,<br>
<br>
Rick<br>
</blockquote></div><br></div></div>

--94eb2c07e70611392405525250b9--


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Subject: [manet] RFC 8175 on Dynamic Link Exchange Protocol (DLEP)
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A new Request for Comments is now available in online RFC libraries.

        
        RFC 8175

        Title:      Dynamic Link Exchange Protocol (DLEP) 
        Author:     S. Ratliff,
                    S. Jury,
                    D. Satterwhite,
                    R. Taylor,
                    B. Berry
        Status:     Standards Track
        Stream:     IETF
        Date:       June 2017
        Mailbox:    sratliff@idirect.net, 
                    sjury@cisco.com, 
                    dsatterw@broadcom.com,
                    rick.taylor@airbus.com
        Pages:      82
        Characters: 177898
        Updates/Obsoletes/SeeAlso:   None

        I-D Tag:    draft-ietf-manet-dlep-29.txt

        URL:        https://www.rfc-editor.org/info/rfc8175

        DOI:        10.17487/RFC8175

When routing devices rely on modems to effect communications over
wireless links, they need timely and accurate knowledge of the
characteristics of the link (speed, state, etc.) in order to make
routing decisions.  In mobile or other environments where these
characteristics change frequently, manual configurations or the
inference of state through routing or transport protocols does not
allow the router to make the best decisions.  This document
introduces a new protocol called the Dynamic Link Exchange Protocol
(DLEP), which provides a bidirectional, event-driven communication
channel between the router and the modem to facilitate communication
of changing link characteristics.

This document is a product of the Mobile Ad-hoc Networks Working Group of the IETF.

This is now a Proposed Standard.

STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements.  Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the 
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The RFC Editor Team
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From: "MATTY, Steven" <steven.matty@airbus.com>
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Thread-Topic: [manet] RFC 8175 on Dynamic Link Exchange Protocol (DLEP)
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Subject: Re: [manet] RFC 8175 on Dynamic Link Exchange Protocol (DLEP)
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Many congrats to Stan, Rick et al!


>-----Original Message-----
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>Subject: [manet] RFC 8175 on Dynamic Link Exchange Protocol (DLEP)
>
>A new Request for Comments is now available in online RFC libraries.
>
>
>        RFC 8175

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Subject: Re: [manet] RFC 8175 on Dynamic Link Exchange Protocol (DLEP)
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I see it and it was a little shock for me... DLEP finally became a RFC!

Congratulation to the authors and everyone involved for their insane
endurance with this protocol.

It is also a very nice timing because I am on a business trip to the CWiX
in Poland where we have told and shown the advantage of the DLEP radio
model (bridging, metadata available) to a lot of people. Instead of saying
"it will become a standard" we were now able to say "it IS an open
standard".

Henning Rogge

Am 21.06.2017 08:31 schrieb "MATTY, Steven" <steven.matty@airbus.com>:

Many congrats to Stan, Rick et al!


>-----Original Message-----
>From: manet [mailto:manet-bounces@ietf.org] On Behalf Of rfc-editor@rfc-
>editor.org
>Sent: Tuesday, June 20, 2017 9:03 PM
>To: ietf-announce@ietf.org; rfc-dist@rfc-editor.org
>Cc: drafts-update-ref@iana.org; manet@ietf.org; rfc-editor@rfc-editor.org
>Subject: [manet] RFC 8175 on Dynamic Link Exchange Protocol (DLEP)
>
>A new Request for Comments is now available in online RFC libraries.
>
>
>        RFC 8175

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<div dir=3D"auto">I see it and it was a little shock for me... DLEP finally=
 became a RFC!<div dir=3D"auto"><br></div><div dir=3D"auto">Congratulation =
to the authors and everyone involved for their insane endurance with this p=
rotocol.</div><div dir=3D"auto"><br></div><div dir=3D"auto">It is also a ve=
ry nice timing because I am on a business trip to the CWiX in Poland where =
we have told and shown the advantage of the DLEP radio model (bridging, met=
adata available) to a lot of people. Instead of saying &quot;it will become=
 a standard&quot; we were now able to say &quot;it IS an open standard&quot=
;.</div><div dir=3D"auto"><br></div><div dir=3D"auto">Henning Rogge</div></=
div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">Am 21.06.2017=
 08:31 schrieb &quot;MATTY, Steven&quot; &lt;<a href=3D"mailto:steven.matty=
@airbus.com">steven.matty@airbus.com</a>&gt;:<br type=3D"attribution"><bloc=
kquote class=3D"quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc soli=
d;padding-left:1ex">Many congrats to Stan, Rick et al!<br>
<div class=3D"quoted-text"><br>
<br>
&gt;-----Original Message-----<br>
&gt;From: manet [mailto:<a href=3D"mailto:manet-bounces@ietf.org">manet-bou=
nces@ietf.org</a><wbr>] On Behalf Of rfc-editor@rfc-<br>
&gt;<a href=3D"http://editor.org" rel=3D"noreferrer" target=3D"_blank">edit=
or.org</a><br>
&gt;Sent: Tuesday, June 20, 2017 9:03 PM<br>
&gt;To: <a href=3D"mailto:ietf-announce@ietf.org">ietf-announce@ietf.org</a=
>; <a href=3D"mailto:rfc-dist@rfc-editor.org">rfc-dist@rfc-editor.org</a><b=
r>
&gt;Cc: <a href=3D"mailto:drafts-update-ref@iana.org">drafts-update-ref@ian=
a.org</a>; <a href=3D"mailto:manet@ietf.org">manet@ietf.org</a>; <a href=3D=
"mailto:rfc-editor@rfc-editor.org">rfc-editor@rfc-editor.org</a><br>
&gt;Subject: [manet] RFC 8175 on Dynamic Link Exchange Protocol (DLEP)<br>
&gt;<br>
&gt;A new Request for Comments is now available in online RFC libraries.<br=
>
&gt;<br>
&gt;<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 RFC 8175<br>
<br>
</div>[snipped]<br>
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--001a114760e404abf20552afee3d--


From nobody Tue Jun 27 07:05:19 2017
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Date: Tue, 27 Jun 2017 16:05:01 +0200
From: Elisabetta Biondi<e.biondi@iit.cnr.it>
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Subject: [manet] New journal 'Online Social Networks and Media'
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CALL FOR PAPERS

Online Social Networks and Media  journal
http://www.journals.elsevier.com/online-social-networks-and-media/

***  The first issue is available online:
http://www.sciencedirect.com/science/journal/24686964 ***

Issued quarterly, OSNEM is an Elsevier peer-reviewed international journal that publishes high-quality scientific articles (both theoretical and experimental) and survey papers covering all aspects of online social networks and media:  from OSNEM protocols and applications to the use of data mined from OSNEM for modeling and understanding the human behavior in the cyber-physical world. 
It is a multidisciplinary journal for the wide community of computer and network scientists working on developing OSNEM platforms and services and using OSNEM as a big data source to mine, learn and mode the (online) human behavior. The journal also welcomes contributions applying a wide range of (computer- and network-science) techniques and tools to OSNEM for investigating how social relationships affect other scientific fields, e.g., social and political sciences, economic and financial sciences, medical sciences.

Topics include, but are not limited to:

-   OSNEM platforms, protocols and applications;
-   Decentralized, mobile and location-based OSNEM;
-   Trust, reputation, privacy and security in OSNEM;
-   Dynamics of trends, information and opinion diffusion in OSNEM;
-   Recommendations and advertising in OSNEM;
-   Measurement, analysis and modeling of popular online social networks (Facebook, Twitter, Instagram, Flickr, etc.);
-   Data mining, and machine learning in OSNEM systems;
-   Social media analysis and social analytics;
-   Information extraction and search in OSNEM;
-   Complex-network analysis of OSNEM;
-   Measurement, analysis and modeling of social behavior through OSNEM data;
-   Analysis of the use of OSNEM in the urban context;
-   Crowdsourcing and online social networks;
-   Multidisciplinary applications of OSNEM (economics, medicine, society, politics, homeland security, etc.).

Marco Conti
Founding EiC
Elsevier Journal on Online Social Networks and Media


From nobody Wed Jun 28 08:06:43 2017
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From: Sean Turner <sean@sn3rd.com>
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Subject: [manet] Secdir last call review of draft-ietf-manet-rfc5444-usage-06
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Reviewer: Sean Turner
Review result: Ready

This draft is well written and in fact provides a wonderful overview of MANET. 
The draft updates RFC5444 based on some operational experience (and thanks for
that); though it does not specify a protocol it is constraining RFC 5444
implementations hence the “updates” header.

>From a security perspective this draft seems fine; there is one
security-related update and it is explained in the security considerations.

>From a non-MANET expert perspective, I have to admit that I found it hard to
figure out exactly what is being “updated”.  It’s a style thing that I’m not
hard over on, but an informative section explaining what got changed would have
really helped this reader.  I will note that there are a couple of places where
the draft is clear that is updates 5444, e.g., s4.4.1, s.4.6,  so I have to
wonder are those the only update?  Or, is it that all the 2119 requirements for
the processing rules update 5444 and you’d only look in 5444 for the packet
formats?


From nobody Wed Jun 28 08:13:37 2017
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To: Sean Turner <sean@sn3rd.com>, "secdir@ietf.org" <secdir@ietf.org>
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From nobody Thu Jun 29 23:46:54 2017
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Date: Thu, 29 Jun 2017 23:46:36 -0700
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Subject: [manet] Genart last call review of draft-ietf-manet-rfc5444-usage-06
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Reviewer: Peter Yee
Review result: Ready with Issues

I am the assigned Gen-ART reviewer for this draft. The General Area
Review Team (Gen-ART) reviews all IETF documents being processed
by the IESG for the IETF Chair.  Please treat these comments just
like any other last call comments.

For more information, please see the FAQ at

<https://trac.ietf.org/trac/gen/wiki/GenArtfaq>.

Document: draft-ietf-manet-rfc5444-usage-06
Reviewer: Peter Yee
Review Date: 2017-06-29
IETF LC End Date: 2017-06-29
IESG Telechat date: 2017-07-06

Summary: Ready with issues.

Major issues:

Minor issues:

Page 12, 2nd bullet item: I disagree that this is an implementation detail. 
Unless there's additional signaling which indicates which implementation
generated the packet, how is the receiving demultiplexer to know whether the
sending multiplexer added a Message TLV or that was done by the protocol?

Nits/editorial comments:

General:

Somebody  needs to strangle the comma fairy.  She was a bit too liberal with
this document. ;-)  I didn't take the time to clean up all of the excess
commas, but many are noted below.

Change "end to end" to "end-to-end" throughout the document.

Specific:

Page 3, Section 1, 2nd paragraph, 1st sentence: delete the comma after "in".

Page 3, Section 1, 3rd paragraph: delete the comma after "[RFC5444]".

Page 4, 1st full bullet item, 2nd sentence: delete the commas after "process"
and "usage".  Change "is" to "are".

Page 5, 1st bullet item, 3rd sentence: delete "of" after "design".

Page 5, last bullet item: append a comma after "count".

Page 6, last paragraph, 2nd sentence: insert "may" before "pass".  Change the
comma after "rules" to a semicolon.

Page 7, Section 1.3: change "makes" to "make" in both place.  Change "impedes"
to "impede".

Page 7, Section 2, 2nd paragraph: append a comma after \"TLV\".

Page 9, Section 4.3, 2nd paragraph, 2nd sentence: append a comma after
"Originator Address".

Page 10, Section 4.4.1, 1st bullet item, 1st sentence: elide the comma after
"protocol".

Page 11, 1st bullet item, 2nd sentence: change "of" to "or".

Page 11, 3rd bullet item, 3rd sentence: remove the comma after "[RFC5444]".

Page 12, 3rd bullet item: change the comma to a semicolon.

Page 13, Section 4.5 title: append a comma after "Addresses".

Page 13, Section 4.5, 3rd bullet item: change "an" to "a".

Page 14, 4th bullet item: delete the comma after "Message".

Page 14, last paragraph: add a comma after "absence" and delete one following
"location".

Page 15, 1st full paragraph: insert "it" before "could".

Page 15, 2nd paragraph, 2nd sentence: change "routers" to "router's" or
"routers'".

Page 15, 4th paragraph, 2nd sentence: change the comma after TLV to a semicolon.

Page 15, 5th paragraph: delete the commas after "Type" and "Value".

Page 17, 1st partial paragraph, 1st full sentence: change "MPR_WILLNG" to
"MPR_WILLING".

Page 17, 1st full bullet item, 1st sentence: Strike the comma after "[RFC7182]".

Page 17, Section 5, 1st paragraph: delete the comma.

Page 17, Section 5, 1st paragraph after the bullet items: change the comma
after "structural" to a period.  Capitalize the follow "they".  Insert "are"
before "field lengths" if that makes sense.

Page 17, last paragraph: append a comma after "Block".

Page 18, 2nd bullet item: add a comma after "Block".  Delete the comma after
"TLV".

Page 18, 2nd paragraph, 1st sentence: elide the comma after "[RFC5444]".

Page 18, 2nd paragraph, 2nd sentence: delete the comma after "accepted".

Page 18, 2nd paragraph, 3rd sentence: remove the comma after "mechanism".

Page 18, 2nd paragraph, 5th sentence: change "4 bit" to "4-bit".

Page 18, Section 6, 1st sentence: delete the commas following "different",
"same", "specification", and "information".

Page 18, Section 6, 2nd sentence: change the comma following "[RFC5444]" to a
period.  Capitalize the following "any".

Page 19, 2nd to last paragraph, 1st sentence: change the comma after "only" to
a semicolon.

Page 19, 2nd to last paragraph, 2nd sentence: change the comma after "6.2)" to
a semicolon.

Page 19, last paragraph, 1st sentence: strike the comma after the 4th
occurrence of "addresses".

Page 19, last paragraph, 2nd sentence: append a comma after "example".

Page 20, Section 6.2, 1st paragraph: delete the comma.

Page 20, 1st bullet item: remove the comma after "straightforward".

Page 20, 2nd bullet item: change the second comma to a period.  Capitalize the
following "see".

Page 21, 2nd paragraph, 2nd sentence: elide the comma after "advice".

Page 21, 2nd paragraph, last sentence: I can't parse this sentence.  Consider
rewriting for clarity.  There seems to be a missing clause.

Page 22, bullet item: delete the comma after "allowed".

Page 24, Appendix A, 1st paragraph, 2nd sentence: delete all of the commas.

Page 24, Appendix A, 1st paragraph after the bullet items, 2nd sentence: delete
both commas.

Page 25, Appendix B, 1st sentence: append a comma after "valuedness".

Page 25, Appendix B, 2nd sentence: remove the comma following "creation".

Page 25, Appendix B, 3rd sentence: change the comma after "independent" to a
period.  Capitalize the following "for".


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From: "Dearlove, Christopher (UK)" <chris.dearlove@baesystems.com>
To: Peter Yee <peter@akayla.com>, "gen-art@ietf.org" <gen-art@ietf.org>
CC: "manet@ietf.org" <manet@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "draft-ietf-manet-rfc5444-usage.all@ietf.org" <draft-ietf-manet-rfc5444-usage.all@ietf.org>
Thread-Topic: Genart last call review of draft-ietf-manet-rfc5444-usage-06
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From nobody Fri Jun 30 03:44:50 2017
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From: "Dearlove, Christopher (UK)" <chris.dearlove@baesystems.com>
To: Peter Yee <peter@akayla.com>, "gen-art@ietf.org" <gen-art@ietf.org>
CC: "manet@ietf.org" <manet@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "draft-ietf-manet-rfc5444-usage.all@ietf.org" <draft-ietf-manet-rfc5444-usage.all@ietf.org>
Thread-Topic: Genart last call review of draft-ietf-manet-rfc5444-usage-06
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Date: Fri, 30 Jun 2017 10:44:24 +0000
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Subject: Re: [manet] Genart last call review of draft-ietf-manet-rfc5444-usage-06
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Subject: Re: [manet] Genart last call review of draft-ietf-manet-rfc5444-usage-06
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Christopher,

	Thanks for clarifying what the implementation paragraph is supposed to =
convey.  It wasn't clear to me that this applied only within the router =
or that it would be over-the-wire identical.

	As for the commas, there were a lot of them.  I didn't even start =
trying to clean them up until part way through the review.  As you note, =
some of them are tricky.  That was part of the problem I had in reading =
the draft - dense sentences that strung together lengthy clauses =
requiring the reader to refer to earlier bits in the sentence in order =
to make sure the meaning was understood.  To be clear, I'm not saying =
anything stated in the draft appeared to be incorrect.  It just made for =
more difficult reading and parsing.

	I appreciate the quick response and look forward to reading the revised =
document.

		-Peter

-----Original Message-----
From: Dearlove, Christopher (UK) [mailto:chris.dearlove@baesystems.com]=20
Sent: Friday, June 30, 2017 2:07 AM
To: Peter Yee; gen-art@ietf.org
Cc: manet@ietf.org; ietf@ietf.org; =
draft-ietf-manet-rfc5444-usage.all@ietf.org
Subject: RE: Genart last call review of =
draft-ietf-manet-rfc5444-usage-06

Peter

Thanks you for your comments. I should note that the following comments =
are mine, not yet consulted with my co-authors.

I'm going to mostly disagree with your disagreement about the indicated =
point being an implementation issue. What matters is consistency at a =
router. Between routers doesn't matter. If router A adds the TLV in the =
multiplexer or the protocol, the on-air message is identical. And it =
doesn't matter if router B receiving a packet makes the opposite =
decision, as long as router B's multiplexer and protocol are consistent. =
I believe one reason for this comment is that different implementers =
have made different decisions. Because there is consistency needed on a =
router is why it says it is "in part".

However, I would agree, re-reading it again, that as worded, it doesn't =
come over as clearly as it should, so we will look at re-wording it.

I don't agree with all of your comments about commas. Just to take the =
first, simply removing the comma is not correct because "but did not =
quite succeed in" is a parenthesis. However, fails to be correct because =
attempted and succeed take different prepositions. But then "attempted =
to providing" is of course incorrect. So that sentence needs work, but =
not simply removal of a comma. I will take a look at each case (which I =
haven't yet done), but ultimately of course the RFC Editor will act as =
the arbiter of such matters.

Christopher

--
Christopher Dearlove
Senior Principal Engineer
BAE Systems Applied Intelligence Laboratories =
_________________________________________________________________________=
_

T:  +44 3300 467500  |  E: chris.dearlove@baesystems.com

BAE Systems Applied Intelligence, Chelmsford Technology Park, Great =
Baddow, Chelmsford, Essex CM2 8HN.
www.baesystems.com/ai
BAE Systems Applied Intelligence Limited Registered in England & Wales =
No: 01337451 Registered Office: Surrey Research Park, Guildford, Surrey, =
GU2 7YP

-----Original Message-----
From: Peter Yee [mailto:peter@akayla.com]
Sent: 30 June 2017 07:47
To: gen-art@ietf.org
Cc: manet@ietf.org; ietf@ietf.org; =
draft-ietf-manet-rfc5444-usage.all@ietf.org
Subject: Genart last call review of draft-ietf-manet-rfc5444-usage-06

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--------------------------------------------------------

Reviewer: Peter Yee
Review result: Ready with Issues

I am the assigned Gen-ART reviewer for this draft. The General Area =
Review Team (Gen-ART) reviews all IETF documents being processed by the =
IESG for the IETF Chair.  Please treat these comments just like any =
other last call comments.

For more information, please see the FAQ at

<https://trac.ietf.org/trac/gen/wiki/GenArtfaq>.

Document: draft-ietf-manet-rfc5444-usage-06
Reviewer: Peter Yee
Review Date: 2017-06-29
IETF LC End Date: 2017-06-29
IESG Telechat date: 2017-07-06

Summary: Ready with issues.

Major issues:

Minor issues:

Page 12, 2nd bullet item: I disagree that this is an implementation =
detail.=20
Unless there's additional signaling which indicates which implementation =
generated the packet, how is the receiving demultiplexer to know whether =
the sending multiplexer added a Message TLV or that was done by the =
protocol?

Nits/editorial comments:

General:

Somebody  needs to strangle the comma fairy.  She was a bit too liberal =
with this document. ;-)  I didn't take the time to clean up all of the =
excess commas, but many are noted below.

Change "end to end" to "end-to-end" throughout the document.

Specific:

Page 3, Section 1, 2nd paragraph, 1st sentence: delete the comma after =
"in".

Page 3, Section 1, 3rd paragraph: delete the comma after "[RFC5444]".

Page 4, 1st full bullet item, 2nd sentence: delete the commas after =
"process"
and "usage".  Change "is" to "are".

Page 5, 1st bullet item, 3rd sentence: delete "of" after "design".

Page 5, last bullet item: append a comma after "count".

Page 6, last paragraph, 2nd sentence: insert "may" before "pass".  =
Change the comma after "rules" to a semicolon.

Page 7, Section 1.3: change "makes" to "make" in both place.  Change =
"impedes"
to "impede".

Page 7, Section 2, 2nd paragraph: append a comma after \"TLV\".

Page 9, Section 4.3, 2nd paragraph, 2nd sentence: append a comma after =
"Originator Address".

Page 10, Section 4.4.1, 1st bullet item, 1st sentence: elide the comma =
after "protocol".

Page 11, 1st bullet item, 2nd sentence: change "of" to "or".

Page 11, 3rd bullet item, 3rd sentence: remove the comma after =
"[RFC5444]".

Page 12, 3rd bullet item: change the comma to a semicolon.

Page 13, Section 4.5 title: append a comma after "Addresses".

Page 13, Section 4.5, 3rd bullet item: change "an" to "a".

Page 14, 4th bullet item: delete the comma after "Message".

Page 14, last paragraph: add a comma after "absence" and delete one =
following "location".

Page 15, 1st full paragraph: insert "it" before "could".

Page 15, 2nd paragraph, 2nd sentence: change "routers" to "router's" or =
"routers'".

Page 15, 4th paragraph, 2nd sentence: change the comma after TLV to a =
semicolon.

Page 15, 5th paragraph: delete the commas after "Type" and "Value".

Page 17, 1st partial paragraph, 1st full sentence: change "MPR_WILLNG" =
to "MPR_WILLING".

Page 17, 1st full bullet item, 1st sentence: Strike the comma after =
"[RFC7182]".

Page 17, Section 5, 1st paragraph: delete the comma.

Page 17, Section 5, 1st paragraph after the bullet items: change the =
comma after "structural" to a period.  Capitalize the follow "they".  =
Insert "are"
before "field lengths" if that makes sense.

Page 17, last paragraph: append a comma after "Block".

Page 18, 2nd bullet item: add a comma after "Block".  Delete the comma =
after "TLV".

Page 18, 2nd paragraph, 1st sentence: elide the comma after "[RFC5444]".

Page 18, 2nd paragraph, 2nd sentence: delete the comma after "accepted".

Page 18, 2nd paragraph, 3rd sentence: remove the comma after =
"mechanism".

Page 18, 2nd paragraph, 5th sentence: change "4 bit" to "4-bit".

Page 18, Section 6, 1st sentence: delete the commas following =
"different", "same", "specification", and "information".

Page 18, Section 6, 2nd sentence: change the comma following "[RFC5444]" =
to a period.  Capitalize the following "any".

Page 19, 2nd to last paragraph, 1st sentence: change the comma after =
"only" to a semicolon.

Page 19, 2nd to last paragraph, 2nd sentence: change the comma after =
"6.2)" to a semicolon.

Page 19, last paragraph, 1st sentence: strike the comma after the 4th =
occurrence of "addresses".

Page 19, last paragraph, 2nd sentence: append a comma after "example".

Page 20, Section 6.2, 1st paragraph: delete the comma.

Page 20, 1st bullet item: remove the comma after "straightforward".

Page 20, 2nd bullet item: change the second comma to a period.  =
Capitalize the following "see".

Page 21, 2nd paragraph, 2nd sentence: elide the comma after "advice".

Page 21, 2nd paragraph, last sentence: I can't parse this sentence.  =
Consider rewriting for clarity.  There seems to be a missing clause.

Page 22, bullet item: delete the comma after "allowed".

Page 24, Appendix A, 1st paragraph, 2nd sentence: delete all of the =
commas.

Page 24, Appendix A, 1st paragraph after the bullet items, 2nd sentence: =
delete both commas.

Page 25, Appendix B, 1st sentence: append a comma after "valuedness".

Page 25, Appendix B, 2nd sentence: remove the comma following =
"creation".

Page 25, Appendix B, 3rd sentence: change the comma after "independent" =
to a period.  Capitalize the following "for".

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