Re: single/double exchange mode doubt

Brian,

   My apologies for not making myself very clear. I have modified steps (2)
and (3) of earlier scenario to make myself more clear below.


        ----------                       ------------
        |IPSP 1|----------------------|IPSP A |
        ----------                       -----------

1)  IPSP1  is  serving AS-1(PC 111) and IPSP A is serving AS-A(PC 999) with
rc=x. They are running happily in single exchange mode.

2) Now, I want to add an additional AS at IPSP1 ex: AS2(PC 222). For AS2, I
need to send Registration Request with my routing key and suppose peer side
i.e IPSP-A has returned rc=y in Registration Response message.

3) After getting the Registration Response from IPSP-A, I fire
ASP-Active(rc=y) from IPSP-1 towards IPSP-A. Now, what should be the
response from IPSP-A?

Regards,
Ankit

On 7/16/07, Brian F. G. Bidulock <[email protected]> wrote:
>
> Ankit,
>
> I think you are confusing RK provisioning with exchange model.  If you
> want
> to define a new AS with a new routing key, either that routing key, RC
> value
> and AS must be provisioned on both sides, or dynamic RK registration needs
> to be done.
>
> --brian
>
> Ankit Kumar Sharma wrote:                      (Mon, 16 Jul 2007 10:12:10)
> >
> >    Brian,
> >       I think in some scenarios, mixing SE and DE becomes more
> practical.
> >    Please look at following scenario:
>
> >                                                                ----------
> >               ------------
> >
> |IPSP
> >    1|----------------------|IPSP A |
>
> >                                                                ----------
> >               -----------
> >    1)  IPSP1  is  serving AS-1(PC 111) and IPSP A is serving AS-A(PC
> 999)
> >    with rc=x. They are running happily in single exchange mode.
> >    2)  Now,  I want to add an additional AS at IPSP1 ex: AS2(PC 222).
> For
> >    AS2, I need to configure a new RC(rc=y).
> >    3)  Corresponding  to  rc=y, I need to send ASP-Active towards
> IPSP-A.
> >    Since  there  is no local AS with rc=y at IPSP-A, it would return
> with
> >    error  code  "invalid RC", unless there is some way to instruct
> IPSP-A
> >    to  behave as a double-exchange IPSP for rc=y. Although I could do
> the
> >    workaround  by adding a dummy AS with rc=y at IPSP-A but that
> solution
> >    is irrational and not so clean.
> >    Regards,
> >    Ankit
> >
> >    On 7/16/07, Brian F. G. Bidulock <[1][email protected]> wrote:
> >
> >      Tolga,
> >      I  don't see the need for DE in the first place, far less mixing it
> >      with SE
> >      on the same IPSP.
> >      --brian
> >      Asveren,  Tolga  wrote:                                (Sun, 15 Jul
> >      2007 16:16:48)
> >      >  I  was  wondering  whether such a restriction is necessary, i.e.
> >      that IPSP
> >      > needs to use the same mode for all AS. The state machines are per
> >      >  IPSP/AS,  so I would think that it should be possible to operate
> >      them
> >      > independently.
> >      >
> >      >  Brian,  is there any specific problem scenario you have in mind,
> >      if this
> >      > is allowed?
> >      >
> >      >    Thanks,
> >      >    Tolga
> >      >
> >      --
> >      Brian F. G. Bidulock
> >      [2][email protected]
> >      [3]http://www.openss7.org/
> >
> > References
> >
> >    1. mailto:[email protected]
> >    2. mailto:[email protected]
> >    3. http://www.openss7.org/
>
> --
> Brian F. G. Bidulock
> [email protected]
> http://www.openss7.org/
>

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