Re: [mpls] Updates to draft-ietf-ccamp-mpls-graceful-shutdown

["Zafar Ali (zali)" <zali at cisco.com>]

Hi Lou-  

> -----Original Message-----
> From: owner-ccamp at ops.ietf.org 
> [mailto:owner-ccamp at ops.ietf.org] On Behalf Of Lou Berger
> Sent: Wednesday, October 29, 2008 11:56 AM
> To: Zafar Ali (zali)
> Cc: Lou Berger; Adrian Farrel; ccamp at ops.ietf.org; 
> mpls at ietf.org; jpv at cisco.com; Anca Zamfir (ancaz); Newton, Jonathan
> Subject: Re: Updates to draft-ietf-ccamp-mpls-graceful-shutdown
> 
> Zafar,
> 
> Why does the document define new error codes (and why 4)?  Is 
> it that the reroute document isn't sufficient clear on how to 
> indicated each of the 4? Is it some other reason?
> 

This is because headend may be able to compute alternate route
("reroute" action) for mb4b differently, depending on the resource under
graceful shutdown, as detailed in the document. Hence one code is define
for TE node, TE link, component link of a bundled TE link, and label
resource, each. 

Thanks

Regards... Zafar 

<snip>
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