From bridge-mib-bounces@ietf.org Sat Jan 20 05:01:23 2007
Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com)
	by megatron.ietf.org with esmtp (Exim 4.43)
	id 1H8D2E-0006U0-3s; Sat, 20 Jan 2007 05:01:18 -0500
Received: from [10.91.34.44] (helo=ietf-mx.ietf.org)
	by megatron.ietf.org with esmtp (Exim 4.43) id 1H7pm6-0008Or-MZ
	for bridge-mib@ietf.org; Fri, 19 Jan 2007 04:11:06 -0500
Received: from daisy.midascomm.com ([203.196.171.90])
	by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1H7pm4-0004y2-7U
	for bridge-mib@ietf.org; Fri, 19 Jan 2007 04:11:06 -0500
Received: from daisy.midascomm.com (localhost.localdomain [127.0.0.1])
	by daisy.midascomm.com (8.12.10/8.12.10) with ESMTP id l0J9A6wN026227; 
	Fri, 19 Jan 2007 14:40:09 +0530
Received: from 192.168.14.204 (SquirrelMail authenticated user pjoseph);
	by daisy.midascomm.com with HTTP;
	Fri, 19 Jan 2007 14:40:13 +0530 (IST)
Message-ID: <1251.192.168.14.204.1169197813.squirrel@192.168.14.204>
Date: Fri, 19 Jan 2007 14:40:13 +0530 (IST)
From: pjoseph@midascomm.com
To: mick_seaman@ieee.org, stds-802-1@ieee.org,
	rstplib-users@lists.sourceforge.net, bridge-mib@ietf.org
User-Agent: SquirrelMail/1.5.0
MIME-Version: 1.0
Content-Type: text/plain;charset=iso-8859-1
Content-Transfer-Encoding: 8bit
X-Priority: 3
Importance: Normal
X-Midascomm.com-MailScanner-Information: Please contact the ISP for more
	information
X-Midascomm.com-MailScanner: Found to be clean
X-MailScanner-From: pjoseph@midascomm.com
X-Spam-Score: 0.2 (/)
X-Scan-Signature: ffa9dfbbe7cc58b3fa6b8ae3e57b0aa3
X-Mailman-Approved-At: Sat, 20 Jan 2007 05:01:17 -0500
Cc: 
Subject: [Bridge-mib] Doubt on 802.1w (max age)
X-BeenThere: bridge-mib@ietf.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: IETF Bridge MIB <bridge-mib.ietf.org>
List-Unsubscribe: <https://www1.ietf.org/mailman/listinfo/bridge-mib>,
	<mailto:bridge-mib-request@ietf.org?subject=unsubscribe>
List-Post: <mailto:bridge-mib@ietf.org>
List-Help: <mailto:bridge-mib-request@ietf.org?subject=help>
List-Subscribe: <https://www1.ietf.org/mailman/listinfo/bridge-mib>,
	<mailto:bridge-mib-request@ietf.org?subject=subscribe>
Errors-To: bridge-mib-bounces@ietf.org


Hi,

Setup:
     6 manageable switches are connected in linear fashion with root brdige
at top . In the root bridge ,max-age ,hellotime and forward-delay is
configured  as 6 ,1 and 4 .


Issue :
    In the sixth bridge ,learned value of max-age,hello time and forward
delay is found as 6 ,1 and 4.But the role of the port connected to
switch 6 alone is switching between F/R (Root) and F/D (Designated )



    We r using the source forge rstp source code for all 6 switches
    From 802.1w standard,I calculated the  rcvdinfowhile timer value for
the port connected to sixth switch as 1 (Calculation done from
updtRcvdInfoWhile()) .When port of switch 6 recieves BPDU  for every
hello time (1 sec) port role switches to F/R and on expiry of
rcvdInfoWhile timer expiry ( 1 sec ) port role switches to F/D .

   What do you think about it ?



_______________________________________________
Bridge-mib mailing list
Bridge-mib@ietf.org
https://www1.ietf.org/mailman/listinfo/bridge-mib

From bridge-mib-bounces@ietf.org Sat Jan 20 05:01:23 2007
Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com)
	by megatron.ietf.org with esmtp (Exim 4.43)
	id 1H8D2E-0006UN-7w; Sat, 20 Jan 2007 05:01:18 -0500
Received: from [10.91.34.44] (helo=ietf-mx.ietf.org)
	by megatron.ietf.org with esmtp (Exim 4.43) id 1H7xwS-0000Ri-C6
	for bridge-mib@ietf.org; Fri, 19 Jan 2007 12:54:20 -0500
Received: from smtp114.sbc.mail.mud.yahoo.com ([68.142.198.213])
	by ietf-mx.ietf.org with smtp (Exim 4.43) id 1H7xwC-0004BC-Eh
	for bridge-mib@ietf.org; Fri, 19 Jan 2007 12:54:20 -0500
Received: (qmail 33299 invoked from network); 19 Jan 2007 17:14:59 -0000
Received: from unknown (HELO MICKHPDESK)
	(mickseaman@sbcglobal.net@75.18.207.20 with login)
	by smtp114.sbc.mail.mud.yahoo.com with SMTP; 19 Jan 2007 17:14:59 -0000
X-YMail-OSG: .FM1FMQVM1mCuyHd0t.fH65QnaqbBzcdR05QNMicvRN5PoC9X2aGgo1aOY4g5U5dlYwgxQb7NpMH.IAajG.5LPdmGluTaV.2f2UL3HQ6From bridge-mib-bounces@ietf.org Sat Jan 20 05:01:23 2007
Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com)
	by megatron.ietf.org with esmtp (Exim 4.43)
	id 1H8D2E-0006U0-3s; Sat, 20 Jan 2007 05:01:18 -0500
Received: from [10.91.34.44] (helo=ietf-mx.ietf.org)
	by megatron.ietf.org with esmtp (Exim 4.43) id 1H7pm6-0008Or-MZ
	for bridge-mib@ietf.org; Fri, 19 Jan 2007 04:11:06 -0500
Received: from daisy.midascomm.com ([203.196.171.90])
	by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1H7pm4-0004y2-7U
	for bridge-mib@ietf.org; Fri, 19 Jan 2007 04:11:06 -0500
Received: from daisy.midascomm.com (localhost.localdomain [127.0.0.1])
	by daisy.midascomm.com (8.12.10/8.12.10) with ESMTP id l0J9A6wN026227; 
	Fri, 19 Jan 2007 14:40:09 +0530
Received: from 192.168.14.204 (SquirrelMail authenticated user pjoseph);
	by daisy.midascomm.com with HTTP;
	Fri, 19 Jan 2007 14:40:13 +0530 (IST)
Message-ID: <1251.192.168.14.204.1169197813.squirrel@192.168.14.204>
Date: Fri, 19 Jan 2007 14:40:13 +0530 (IST)
From: pjoseph@midascomm.com
To: mick_seaman@ieee.org, stds-802-1@ieee.org,
	rstplib-users@lists.sourceforge.net, bridge-mib@ietf.org
User-Agent: SquirrelMail/1.5.0
MIME-Version: 1.0
Content-Type: text/plain;charset=iso-8859-1
Content-Transfer-Encoding: 8bit
X-Priority: 3
Importance: Normal
X-Midascomm.com-MailScanner-Information: Please contact the ISP for more
	information
X-Midascomm.com-MailScanner: Found to be clean
X-MailScanner-From: pjoseph@midascomm.com
X-Spam-Score: 0.2 (/)
X-Scan-Signature: ffa9dfbbe7cc58b3fa6b8ae3e57b0aa3
X-Mailman-Approved-At: Sat, 20 Jan 2007 05:01:17 -0500
Cc: 
Subject: [Bridge-mib] Doubt on 802.1w (max age)
X-BeenThere: bridge-mib@ietf.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: IETF Bridge MIB <bridge-mib.ietf.org>
List-Unsubscribe: <https://www1.ietf.org/mailman/listinfo/bridge-mib>,
	<mailto:bridge-mib-request@ietf.org?subject=unsubscribe>
List-Post: <mailto:bridge-mib@ietf.org>
List-Help: <mailto:bridge-mib-request@ietf.org?subject=help>
List-Subscribe: <https://www1.ietf.org/mailman/listinfo/bridge-mib>,
	<mailto:bridge-mib-request@ietf.org?subject=subscribe>
Errors-To: bridge-mib-bounces@ietf.org


Hi,

Setup:
     6 manageable switches are connected in linear fashion with root brdige
at top . In the root bridge ,max-age ,hellotime and forward-delay is
configured  as 6 ,1 and 4 .


Issue :
    In the sixth bridge ,learned value of max-age,hello time and forward
delay is found as 6 ,1 and 4.But the role of the port connected to
switch 6 alone is switching between F/R (Root) and F/D (Designated )



    We r using the source forge rstp source code for all 6 switches
    From 802.1w standard,I calculated the  rcvdinfowhile timer value for
the port connected to sixth switch as 1 (Calculation done from
updtRcvdInfoWhile()) .When port of switch 6 recieves BPDU  for every
hello time (1 sec) port role switches to F/R and on expiry of
rcvdInfoWhile timer expiry ( 1 sec ) port role switches to F/D .

   What do you think about it ?



_______________________________________________
Bridge-mib mailing list
Bridge-mib@ietf.org
https://www1.ietf.org/mailman/listinfo/bridge-mib

From bridge-mib-bounces@ietf.org Sat Jan 20 05:01:23 2007
Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com)
	by megatron.ietf.org with esmtp (Exim 4.43)
	id 1H8D2E-0006UN-7w; Sat, 20 Jan 2007 05:01:18 -0500
Received: from [10.91.34.44] (helo=ietf-mx.ietf.org)
	by megatron.ietf.org with esmtp (Exim 4.43) id 1H7xwS-0000Ri-C6
	for bridge-mib@ietf.org; Fri, 19 Jan 2007 12:54:20 -0500
Received: from smtp114.sbc.mail.mud.yahoo.com ([68.142.198.213])
	by ietf-mx.ietf.org with smtp (Exim 4.43) id 1H7xwC-0004BC-Eh
	for bridge-mib@ietf.org; Fri, 19 Jan 2007 12:54:20 -0500
Received: (qmail 33299 invoked from network); 19 Jan 2007 17:14:59 -0000
Received: from unknown (HELO MICKHPDESK)
	(mickseaman@sbcglobal.net@75.18.207.20 with login)
	by smtp114.sbc.mail.mud.yahoo.com with SMTP; 19 Jan 2007 17:14:59 -0000
X-YMail-OSG: .FM1FMQVM1mCuyHd0t.fH65QnaqbBzcdR05QNMicvRN5PoC9X2aGgo1aOY4g5U5dlYwgxQb7NpMH.IAajG.5LPdmGluTaV.2f2UL3HQ6XRZQiMxpySI-
Message-ID: <00b901c73bed$58526030$6401a8c0@MICKHPDESK>
From: "Mick Seaman" <mick_seaman@ieee.org>
To: <pjoseph@midascomm.com>, <stds-802-1@ieee.org>,
	<rstplib-users@lists.sourceforge.net>, <bridge-mib@ietf.org>
References: <1251.192.168.14.204.1169197813.squirrel@192.168.14.204>
Date: Fri, 19 Jan 2007 09:14:56 -0800
MIME-Version: 1.0
X-Priority: 3
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook Express 6.00.2900.3028
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028
X-Spam-Score: 0.1 (/)
X-Scan-Signature: 22bbb45ef41b733eb2d03ee71ece8243
X-Mailman-Approved-At: Sat, 20 Jan 2007 05:01:17 -0500
Cc: 
Subject: [Bridge-mib] Re: Doubt on 802.1w (max age)
X-BeenThere: bridge-mib@ietf.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: IETF Bridge MIB <bridge-mib.ietf.org>
List-Unsubscribe: <https://www1.ietf.org/mailman/listinfo/bridge-mib>,
	<mailto:bridge-mib-request@ietf.org?subject=unsubscribe>
List-Post: <mailto:bridge-mib@ietf.org>
List-Help: <mailto:bridge-mib-request@ietf.org?subject=help>
List-Subscribe: <https://www1.ietf.org/mailman/listinfo/bridge-mib>,
	<mailto:bridge-mib-request@ietf.org?subject=subscribe>
Content-Type: multipart/mixed; boundary="===============1912512471=="
Errors-To: bridge-mib-bounces@ietf.org

This is a multi-part message in MIME format.

--===============1912512471==
Content-Type: multipart/alternative;
	boundary="----=_NextPart_000_00B6_01C73BAA.495D5140"

This is a multi-part message in MIME format.

------=_NextPart_000_00B6_01C73BAA.495D5140
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

What I think about it is that you have Max Age set too low - I would =
suggest at least 8 in this scenario. The disputed procedure (I hope the =
code is to 1D-2004 with the two late editorial errors fixed as per the =
Vision sim release notes, alternately see 1Q-2005MSTP code which has =
these fixes) will stop there being a loop.

Mick
  ----- Original Message -----=20
  From: pjoseph@midascomm.com=20
  To: mick_seaman@ieee.org ; stds-802-1@ieee.org ; =
rstplib-users@lists.sourceforge.net ; bridge-mib@ietf.org=20
  Sent: Friday, January 19, 2007 1:10 AM
  Subject: Doubt on 802.1w (max age)



  Hi,

  Setup:
       6 manageable switches are connected in linear fashion with root =
brdige
  at top . In the root bridge ,max-age ,hellotime and forward-delay is
  configured  as 6 ,1 and 4 .


  Issue :
      In the sixth bridge ,learned value of max-age,hello time and =
forward
  delay is found as 6 ,1 and 4.But the role of the port connected to
  switch 6 alone is switching between F/R (Root) and F/D (Designated )



      We r using the source forge rstp source code for all 6 switches
      From 802.1w standard,I calculated the  rcvdinfowhile timer value =
for
  the port connected to sixth switch as 1 (Calculation done from
  updtRcvdInfoWhile()) .When port of switch 6 recieves BPDU  for every
  hello time (1 sec) port role switches to F/R and on expiry of
  rcvdInfoWhile timer expiry ( 1 sec ) port role switches to F/D .

     What do you think about it ?



------=_NextPart_000_00B6_01C73BAA.495D5140
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.5730.11" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>What I think about it is that you have =
Max Age set=20
too low - I would suggest at least 8 in this scenario. The disputed =
procedure (I=20
hope the code is to 1D-2004 with the two late editorial errors fixed as =
per the=20
Vision sim release notes, alternately see 1Q-2005MSTP code which has =
these=20
fixes) will stop there being a loop.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Mick</FONT></DIV>
<BLOCKQUOTE=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000XRZQiMxpySI-
Message-ID: <00b901c73bed$58526030$6401a8c0@MICKHPDESK>
From: "Mick Seaman" <mick_seaman@ieee.org>
To: <pjoseph@midascomm.com>, <stds-802-1@ieee.org>,
	<rstplib-users@lists.sourceforge.net>, <bridge-mib@ietf.org>
References: <1251.192.168.14.204.1169197813.squirrel@192.168.14.204>
Date: Fri, 19 Jan 2007 09:14:56 -0800
MIME-Version: 1.0
X-Priority: 3
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook Express 6.00.2900.3028
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028
X-Spam-Score: 0.1 (/)
X-Scan-Signature: 22bbb45ef41b733eb2d03ee71ece8243
X-Mailman-Approved-At: Sat, 20 Jan 2007 05:01:17 -0500
Cc: 
Subject: [Bridge-mib] Re: Doubt on 802.1w (max age)
X-BeenThere: bridge-mib@ietf.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: IETF Bridge MIB <bridge-mib.ietf.org>
List-Unsubscribe: <https://www1.ietf.org/mailman/listinfo/bridge-mib>,
	<mailto:bridge-mib-request@ietf.org?subject=unsubscribe>
List-Post: <mailto:bridge-mib@ietf.org>
List-Help: <mailto:bridge-mib-request@ietf.org?subject=help>
List-Subscribe: <https://www1.ietf.org/mailman/listinfo/bridge-mib>,
	<mailto:bridge-mib-request@ietf.org?subject=subscribe>
Content-Type: multipart/mixed; boundary="===============1912512471=="
Errors-To: bridge-mib-bounces@ietf.org

This is a multi-part message in MIME format.

--===============1912512471==
Content-Type: multipart/alternative;
	boundary="----=_NextPart_000_00B6_01C73BAA.495D5140"

This is a multi-part message in MIME format.

------=_NextPart_000_00B6_01C73BAA.495D5140
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

What I think about it is that you have Max Age set too low - I would =
suggest at least 8 in this scenario. The disputed procedure (I hope the =
code is to 1D-2004 with the two late editorial errors fixed as per the =
Vision sim release notes, alternately see 1Q-2005MSTP code which has =
these fixes) will stop there being a loop.

Mick
  ----- Original Message -----=20
  From: pjoseph@midascomm.com=20
  To: mick_seaman@ieee.org ; stds-802-1@ieee.org ; =
rstplib-users@lists.sourceforge.net ; bridge-mib@ietf.org=20
  Sent: Friday, January 19, 2007 1:10 AM
  Subject: Doubt on 802.1w (max age)



  Hi,

  Setup:
       6 manageable switches are connected in linear fashion with root =
brdige
  at top . In the root bridge ,max-age ,hellotime and forward-delay is
  configured  as 6 ,1 and 4 .


  Issue :
      In the sixth bridge ,learned value of max-age,hello time and =
forward
  delay is found as 6 ,1 and 4.But the role of the port connected to
  switch 6 alone is switching between F/R (Root) and F/D (Designated )



      We r using the source forge rstp source code for all 6 switches
      From 802.1w standard,I calculated the  rcvdinfowhile timer value =
for
  the port connected to sixth switch as 1 (Calculation done from
  updtRcvdInfoWhile()) .When port of switch 6 recieves BPDU  for every
  hello time (1 sec) port role switches to F/R and on expiry of
  rcvdInfoWhile timer expiry ( 1 sec ) port role switches to F/D .

     What do you think about it ?



------=_NextPart_000_00B6_01C73BAA.495D5140
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.5730.11" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>What I think about it is that you have =
Max Age set=20
too low - I would suggest at least 8 in this scenario. The disputed =
procedure (I=20
hope the code is to 1D-2004 with the two late editorial errors fixed as =
per the=20
Vision sim release notes, alternately see 1Q-2005MSTP code which has =
these=20
fixes) will stop there being a loop.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Mick</FONT></DIV>
<BLOCKQUOTE=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A title=3Dpjoseph@midascomm.com=20
  href=3D"mailto:pjoseph@midascomm.com">pjoseph@midascomm.com</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Dmick_seaman@ieee.org=20
  href=3D"mailto:mick_seaman@ieee.org">mick_seaman@ieee.org</A> ; <A=20
  title=3Dstds-802-1@ieee.org=20
  href=3D"mailto:stds-802-1@ieee.org">stds-802-1@ieee.org</A> ; <A=20
  title=3Drstplib-users@lists.sourceforge.net=20
  =
href=3D"mailto:rstplib-users@lists.sourceforge.net">rstplib-users@lists.s=
ourceforge.net</A>=20
  ; <A title=3Dbridge-mib@ietf.org=20
  href=3D"mailto:bridge-mib@ietf.org">bridge-mib@ietf.org</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Friday, January 19, 2007 =
1:10=20
  AM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Doubt on 802.1w (max =
age)</DIV>
  <DIV><BR></DIV><BR>Hi,<BR><BR>Setup:<BR>&nbsp;&nbsp;&nbsp;&nbsp; 6 =
manageable=20
  switches are connected in linear fashion with root brdige<BR>at top . =
In the=20
  root bridge ,max-age ,hellotime and forward-delay =
is<BR>configured&nbsp; as 6=20
  ,1 and 4 .<BR><BR><BR>Issue :<BR>&nbsp;&nbsp;&nbsp; In the sixth =
bridge=20
  ,learned value of max-age,hello time and forward<BR>delay is found as =
6 ,1 and=20
  4.But the role of the port connected to<BR>switch 6 alone is switching =
between=20
  F/R (Root) and F/D (Designated )<BR><BR><BR><BR>&nbsp;&nbsp;&nbsp; We =
r using=20
  the source forge rstp source code for all 6 =
switches<BR>&nbsp;&nbsp;&nbsp;=20
  From 802.1w standard,I calculated the&nbsp; rcvdinfowhile timer value=20
  for<BR>the port connected to sixth switch as 1 (Calculation done=20
  from<BR>updtRcvdInfoWhile()) .When port of switch 6 recieves =
BPDU&nbsp; for=20
  every<BR>hello time (1 sec) port role switches to F/R and on expiry=20
  of<BR>rcvdInfoWhile timer expiry ( 1 sec ) port role switches to F/D=20
  .<BR><BR>&nbsp;&nbsp; What do you think about it=20
?<BR><BR><BR></BLOCKQUOTE></BODY></HTML>

------=_NextPart_000_00B6_01C73BAA.495D5140--




--===============1912512471==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

_______________________________________________
Bridge-mib mailing list
Bridge-mib@ietf.org
https://www1.ietf.org/mailman/listinfo/bridge-mib

--===============1912512471==--








 2px solid; MARGIN-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A title=3Dpjoseph@midascomm.com=20
  href=3D"mailto:pjoseph@midascomm.com">pjoseph@midascomm.com</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Dmick_seaman@ieee.org=20
  href=3D"mailto:mick_seaman@ieee.org">mick_seaman@ieee.org</A> ; <A=20
  title=3Dstds-802-1@ieee.org=20
  href=3D"mailto:stds-802-1@ieee.org">stds-802-1@ieee.org</A> ; <A=20
  title=3Drstplib-users@lists.sourceforge.net=20
  =
href=3D"mailto:rstplib-users@lists.sourceforge.net">rstplib-users@lists.s=
ourceforge.net</A>=20
  ; <A title=3Dbridge-mib@ietf.org=20
  href=3D"mailto:bridge-mib@ietf.org">bridge-mib@ietf.org</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Friday, January 19, 2007 =
1:10=20
  AM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Doubt on 802.1w (max =
age)</DIV>
  <DIV><BR></DIV><BR>Hi,<BR><BR>Setup:<BR>&nbsp;&nbsp;&nbsp;&nbsp; 6 =
manageable=20
  switches are connected in linear fashion with root brdige<BR>at top . =
In the=20
  root bridge ,max-age ,hellotime and forward-delay =
is<BR>configured&nbsp; as 6=20
  ,1 and 4 .<BR><BR><BR>Issue :<BR>&nbsp;&nbsp;&nbsp; In the sixth =
bridge=20
  ,learned value of max-age,hello time and forward<BR>delay is found as =
6 ,1 and=20
  4.But the role of the port connected to<BR>switch 6 alone is switching =
between=20
  F/R (Root) and F/D (Designated )<BR><BR><BR><BR>&nbsp;&nbsp;&nbsp; We =
r using=20
  the source forge rstp source code for all 6 =
switches<BR>&nbsp;&nbsp;&nbsp;=20
  From 802.1w standard,I calculated the&nbsp; rcvdinfowhile timer value=20
  for<BR>the port connected to sixth switch as 1 (Calculation done=20
  from<BR>updtRcvdInfoWhile()) .When port of switch 6 recieves =
BPDU&nbsp; for=20
  every<BR>hello time (1 sec) port role switches to F/R and on expiry=20
  of<BR>rcvdInfoWhile timer expiry ( 1 sec ) port role switches to F/D=20
  .<BR><BR>&nbsp;&nbsp; What do you think about it=20
?<BR><BR><BR></BLOCKQUOTE></BODY></HTML>

------=_NextPart_000_00B6_01C73BAA.495D5140--




--===============1912512471==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

_______________________________________________
Bridge-mib mailing list
Bridge-mib@ietf.org
https://www1.ietf.org/mailman/listinfo/bridge-mib

--===============1912512471==--








