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

[Hannes Gredler <[e-mail]>]

hi ebben,

what i haven't got my head around is why do we need this, given
that there is no IS-IS receive side functionality to be implemented
on routers and static labels (read: predictable) are preferred anyway ?

/hannes

On Tue, Aug 04, 2015 at 05:38:42PM -0600, Ebben Aries wrote:
| 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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