Re: [Idr] draft-dong-idr-node-target-ext-comm-05.txt - WG Adoption and IPR call (9/27 to 10/11/2022) - Extended an Additional week to 10/18/2022

[Robert Raszuk <[e-mail]>]

>
> The way I understand it by reading Jie's use case that this VRF scoped
> too. It could be nodes scoped and VRF scoped.
>
> My understanding was that this was a logical AND case in such
> circumstances.  Thus, a specific node for a specific VPN and would have
> route targets in addition to the node-target.
>

As you know for many years we have been addressing such cases by allocating
a new RT. My point also already shared is that if the target node has 1000s
VRFs your granularity of logical AND of RT and NT is simply not sufficient.

- - -

In any case what was not discussed at all here is how that information on
what BGP_IDs to apply is communicated to sourcing nodes. It may very well
turn orders of magnitude easier to simply configure target nodes with a
required configuration as opposed to sending policy to source nodes and
modify the entire network to accommodate new auto filtering rules.

Thx,
R.