Re: [Isis-wg] draft-ginsberg-isis-l2bundles

[Ebben Aries <[e-mail]>]

I see BGP-LS extensions complementing this, not necessarily as a
replacement.  For a use-case of a central entity learning these
underlying l2 attributes to then do whatever you wish (impose label
stacks, etc..) - BGP-LS is a natural fit.

For this to remain in the IGP, a consideration could be the propagation
of these L2 attributes to then be included in TEDs for additional logic
from headend nodes (network elements within the IGP domain) - e.g.
control packet per member from a remote endpoint overriding remote
hashing either by some policy/SLA or dynamic based off of per member
utilization, etc..

On 08/03/2015 07:02 AM, [e-mail] wrote:
> Hi,
> 
>  
> 
> Thinking again about this draft, I wondering why not using BGP-LS for
> that purpose ?
> 
> I mean, the goal here is just to provide some topological information
> that are not related to IGP, as you want to keep L2 bundles and so a
> single IP link. If you want to expose the underlaying topology, you may
> be able to do it in BGP-LS rather than adding this in the IGP as the
> information you want to expose is not necessary for the IGP to run.
> 
>  
> 
> Thx
> 
>  
> 
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