Re: Doubt regarding routing context.

On 9/17/07, Mohammad Arif <[email protected]> wrote:
>
> Hi Ankit,
> Thanks for your help.
>
> Assuming double exchange mode, IPSP-A should use routing context 1. By
> sending ASPAC, we are telling remote node that this ASP is ready to
> process traffic for a particular AS, and that AS is identified by supplied
> routing context.
>
> Then will SUA messages like CORE,COREF,CODT,RELRE etc will use Routing
> context= 2...??
> because if this messages use routing-context=1 then it wont be possible to
> deliver it to the correct ASP in receving side.
>

IMO, you are correct with little modification in your statement. "....wont
be possible to deliver it to the correct *AS* in receving side."


> Please clarify if i m wrong,
>
> thanks.
>
>
>  On 9/17/07, Ankit Kumar Sharma <[email protected]> wrote:
> >
> > Arif,
> >
> > On 9/17/07, Mohammad Arif < [email protected]> wrote:
> > >
> > > Hi All,
> > >
> > > I have some confusion regarding routing contexts...
> > >
> > > Imagine a scenarion where i have two IPSPs( IPSP-A and IPSB-B).
> > > IPSP-A has pointcode -100 and IPSP-B has pointcode-200.
> > >
> > > So during dyamnic regisration of RKs , IPSP -A sends Reg-req to IPS-B
> > > with PC-100 and inturn gets a Routingcontext=1 from IPSB-B.
> > > simialrly IPSP -B sends Reg-req to IPS-A with PC-200 and inturn gets a
> > > Routingcontext=2 from IPSB-A.
> > >
> > > so now if IPSB-A wants to sends ASP-ACTIVE to IPSP-B , then will it
> > > use Routing context as 1 0r 2 ??
> > >
> >
> > Assuming double exchange mode, IPSP-A should use routing context 1. By
> > sending ASPAC, we are telling remote node that this ASP is ready to
> > process traffic for a particular AS, and that AS is identified by supplied
> > routing context.
> >
> >  as all other sua messages from IPSP-A to IPSB-B will use routing
> > > context of 2, so wil it be used in ASP ACTIVE?
> > >
> >
> > No
> >
> >
> > >
> > > Also...in ASP ACTIVE ACK message the routing context recevied in ASP
> > > ACTIVE should be sent back?
> > >
> >
> > Yes, because if IPSP-A wants to handle traffic for more than one AS then
> > it could send ASPAC messages(with respective routing contexts) for all of
> > them. After receiving ASPAC-ACK with a particular routing context, it could
> > easily identify AS for which peer is ready to process traffic.
> >
> >
> > > Please clarify.
> > >
> > > Thanks i advance.
> > >
> > > --
> > > Regards
> > > Mohammad Arif
> > >
> > > _______________________________________________
> > > Sigtran mailing list
> > > [email protected]
> > > https://www1.ietf.org/mailman/listinfo/sigtran
> > >
> > >
> >
>
>
> --
> Regards
> Mohammad Arif

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