Subject: RE: [Isis-wg] doubts

From: ramanathan rams <[email-masked]>
Date: Thu, 26 Sep 2002 15:23:23 -0700

hi,

    sorry b,2 is the convergence case, it will not result in extra send.

     for b,4 old lsp will  be sent in the following scenario

     old LSP will be sent when SRM flag is examined before getting the new 
LSP update from the DIS.     B receives the CSNP packet from A, finds it is 
having a old copy so it will set the SSN bit, to request the new version of 
that LSP. Meanwhile another   new version of the LSP comes from D which is 
not as latest as A is having. but to B, it is latest and it will update the 
database and set the SRM flag,  then SSN request is sent and then because 
of SRM flag set, B will send the LSP received from D on the LAN before 
receiving the new ( latest ) LSP from  DIS.  In this case old LSP is 
propogated.

      new lsp will be sent when SRM flag is examined after getting the new 
update from the DIS.

 is that right or wrong?

thanks
rams.

-----Original Message-----
From:	Jeff Parker [SMTP:[email-masked]]
Sent:	Thursday, September 26, 2002 2:57 PM
To:	[email-masked]'
Subject:	RE: [Isis-wg] doubts

> hi,
>
>        one extra send of equal lsp case b,2  and  one extra
> send of old lsp
> or new lsp ( based on the time gap between sending the ssn request,
> receiving the new lsp and checking of SRM flag for the LSP
> propogation )
> will also occur because of b,4.
>
> thanks
> rams.

I don't see that b.2 leads to an extra send.

I don't understand the scenario you describe for b.4

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