Subject: RE: Association Deletion !!!!

From: <[email-masked]>
Date: Mon, 14 Apr 2003 12:11:16 +0300

Hi again!

> Hi Ivan & Brian,
>     The ABORT chunk will be sent with the verification tag 
> received in the 
> HEARTBEAT chunk and T bit set to 1.
>    But when the HOST2 will receive this ABORT chunk, HOST2 
> will will discard
> this ABORT chunk. Am i correct ? 

	Nope... ABORT (and SHUTDOWN COMPLETE) chunks are accepted either if the VT of the datagram where they are is set to the "right" VT, of if it is set to the "opposite" VT (and in this case they must have the T flag set). Check section 8.5.1 of the RFC.

>    The HOST2 will keep on sending HEARTBEAT chunk to HOST1 
> and HOST1 will
> send ABORT in response of the HEARTBEAT chunk. When the Path Max
> Retranmission count will reach, the association will be terminated.
> Is this correct ?

	No, see above.

	BR Iván Arias Rodríguez

> Vijay
> 
> -------Original Message-------
> From: [email-masked]
> Date: Monday, April 14, 2003 06:39:15 PM
> To: [email-masked]; [email-masked]
> Subject: RE: Association Deletion !!!!
> Hi Vijay!
> This is what is called an OOTB (Out Of The Blue) packet. In 
> these situations
>  one should include the VT of the sender (i.e., re-use the 
> one that came
> inside the incoming packet), and set the T flag of the ABORT 
> chunk to 1.
> Check section 8.4 of the RFC for extra information.
> BR Iván Arias Rodríguez
> > -----Original Message-----
> > From: ext Vijay Kumar Choudhary [mailto:[email-masked]]
> > Sent: Monday, 14 April, 2003 10:22
> > To: [email-masked]
> > Subject: Association Deletion !!!!
> > 
> > 
> > Hi All,
> > Pls see the following scenario.
> > 
> > HOST1 
> > HOST2
> > INIT
> > 
> > --------------------------------------------------------------->
> > INIT ACK
> > 
> > <--------------------------------------------------------------
> > COOKIE ECHO
> > 
> > ------------------------------------------------------------------>
> > COOKIE ACK
> > 
> > <-----------------------------------------------------------------
> > 
> > 
> > Here the association is established and both the 
> > endpoints are
> > exchanging heartbeat.
> > 
> > 
> > Due to some reason, HOST1 closed all the association. 
> > The HOST2 is
> > not having anyformation of association deletion at the HOST1 
> > and it will
> > send HEARTBEAT to HOST1.
> > 
> > After receiving HEARTBEAT, what HOST1 will do? 
> > 
> > If an ABORT is to be send then what Verification Tag 
> > should be used in
> > the ABORT chunk, Since we dont have the VT of the association. 
> > 
> > Regards,
> > Vijay
> > 
>