Re: SCTP ABORT Issue

Vivek,
  Have you checked whether a single instance(implementation) of SCTP is
running on the endpoint B?

I have seen a similar issue when, unknowingly,  some vendor's SCTP and
kernel SCTP were running on the same machine, simultaneously.

Cheers
Ankit

On Fri, Jan 16, 2009 at 12:31 PM, Kumar, Vivek (NSN - IN/Bangalore) <
[email protected]> wrote:

> Hello Brian,
>
> Thanks for the response. It would be really helpful if you could point
> what the potential bug could be.
>
>
> Regards,
> Vivek Kumar
> Ph: +918040553823
>
> -----Original Message-----
> From: ext Brian F. G. Bidulock [mailto:[email protected]]
> Sent: Tuesday, January 13, 2009 2:44 AM
> To: Kumar, Vivek (NSN - IN/Bangalore)
> Cc: [email protected]
> Subject: Re: [Sigtran] SCTP ABORT Issue
>
> Vivek,
>
> Looks to me like a bug in Endpoint B.
>
> --brian
>
> Kumar, Vivek (NSN - IN/Bangalore) wrote:     (Mon, 12 Jan 2009 15:08:34)
> >
> >    Hello Sir,
> >
> >    I am facing a rather strange scenario:
> >
> >    Endpoint A              Endpoint B
> >    SCTP-INIT------------------->
> >            <----------------------INIT_ACK
> >    COOKIE-ECHO----------->
> >            <---------------------COOKIE-ACK
> >    M3UA msg------------->
> >            <--------------ABORT
> >            <--------------HEARTBEAT
> >
> >    In the Abort Chunk I observe that the T bit is set to 1 indicating
> >    that Endpoint B does not have a TCB. What could be the problem
> here.
> >    Is this an OOTB case? Shouldnt TCB be present on Endpoint B as the
> >    4-way handshake has been successfully been completed. If Endpoint B
> >    does not have a TCB ? How can it send HEARTBEAT to Endpoint A?
> >
> >    Thanks in advance.
> >
> >    <<capture.txt>>
> >    Regards,
> >    Vivek Kumar
>
> > _______________________________________________
> > Sigtran mailing list
> > [email protected]
> > https://www.ietf.org/mailman/listinfo/sigtran
>
>
> --
> Brian F. G. Bidulock
> [email protected]
> http://www.openss7.org/
> _______________________________________________
> Sigtran mailing list
> [email protected]
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>

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