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Re: association object



Lucy,

If you mean the value of the association id, we specifically left it out of the responsibility of the gmpls suite of protocols. An NMS or other outside entity is perfectly capable of making the assignment. In my mind this assignment should be centralized; otherwise, multiple independent sources may decide to use the same id.

Richard.

Lucy Yong wrote:
Huub,

Thank you fro the answer. The value I mentioned is for VCG group ID.

Regards,
Lucy

-----Original Message-----
From: Huub van Helvoort [mailto:hhelvoort@chello.nl] Sent: Wednesday, July 19, 2006 7:38 AM
To: Lucy Yong; 'Ong, Lyndon'; richard@us.fujitsu.com; ccamp@ops.ietf.org
Subject: Re: RE: association object

Dear Lucy,

You wrote:

Thank you for the explanation. Thus, this association is only significant
at
the destination, is that right?

Yes, intermediate nodes do not have to be aware of the association between
the LSPs in a VCG.

 Is VCG group value generated by the source?

I am not sure what you mean by value.
Is it the identifier for a specific VCG, or
is it the size (number of LSPs) of the VCG?

Cheers, Huub.
_____
From: owner-ccamp@ops.ietf.org [mailto:owner-ccamp@ops.ietf.org] On Behalf
Of Ong, Lyndon
Sent: Tuesday, July 18, 2006 12:26 PM
To: Lucy Yong; richard@us.fujitsu.com; ccamp@ops.ietf.org
Subject: RE: association object

Hi Lucy,

The association object is used to associate components of a VCG that are
already diversely routed in the draft, I would think diverse routing is
more
a feature of path computation than the signaling to set up the component.

What the association object does is allow you to tell what LSPs arriving
at
the destination are part of the same VCG.

Cheers,

Lyndon

_____
From: owner-ccamp@ops.ietf.org [mailto:owner-ccamp@ops.ietf.org] On Behalf
Of Lucy Yong
Sent: Tuesday, July 18, 2006 7:16 AM
To: richard@us.fujitsu.com; ccamp@ops.ietf.org
Subject: association object

Richard,

It was nice to meet you in IETF meeting. I have a question about
association
object used to associate the diversely routed LSPs.
If a LSP is established first, say LSP1, then another LSP (say LSP2) needs
to be established and be diversely routed from LSP1, how association
object
is applied in this case? It is easy to use in the latter LSP request,
however, how does LSP1 know that it needs to diverse from LSP2.

What is the relationship between this association object and diversity
object in GMPLS.

Best Regards,

Lucy