Re: Doubt regarding ASPID in ASP UP message

"Ankit Kumar Sharma" <[email protected]>
Newsgroups gmane.ietf.sigtran
Message-ID <[email protected]>
David,

On 3/13/08, David Laight <[email protected]> wrote:
>
> > But as per the rfc-4666
> >
> > 1- The "ASP Identifier Required" error is sent by an
> > SGP in response to  an ASP Up message that does not
> > contain an ASP Identifier parameter when the SGP
> > requires one. The ASP SHOULD resend the ASP Up message
> >    with an ASP Identifier.
>
>
> Personally I'd replace the last sentence with:
>     "The ASP should be reconfigured to include an ASP
>     Identifier in ASP Up messages."


No need to replace the sentence. It is left on implementations to supply
ASP-UP with ASP-id using any available method, whether it is static
reconfiguration or dynamic reconfiguration etc.

The ASP Identifier can't just be pulled out of thin air.
> For it to be useful the value needs to be known to all the
> ASP using the same routing context.


agreed ...

Also I don't believe the SG is allowed to reject an ASP Up
> message because it contains an ASP Id - so an ASP that can
> supply an ASP Id might as well always supply one.


SG rejects ASP-UP only in the case when it has invalid ASP-id. Please see
the example of invalid ASP-ID in RFC(4666) section 3.8.1

        David
>
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Cheers,
Ankit

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