Re: Doubt regarding ASPID in ASP UP message

Hi Ankit,

As per your sentence below " 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"

My question how can SG know the ASPID id invalid, if there is no handshaking
between about ASPID in case of multiple ASP in AS.

Also if ASPID is not present in ASPUP message how can the SG validate the
ASPID locally.

Is it a manual configuration work?

Br,
Ambika



On Thu, Mar 13, 2008 at 4:27 PM, Ankit Kumar Sharma <[email protected]>
wrote:

> 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
> >
> > Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes,
> > MK1 1PT, UK
> > Registration No: 1397386 (Wales)
> > P Please consider the environment and don't print this e-mail unless you
> > really need to
> >
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>
> Cheers,
> Ankit
>
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>


-- 
Br,
Ambika Prasad Tripathy
Nethawk Networks
Cell: +91-94375 47730

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