> From: David Sinn > Sent: Thursday, June 11, 2020 4:32 PM > > However if you move away from large multi-chip systems, > to a system of fixed form-factor, single chip systems, labels fall > apart at scale with high ECMP. Needing to enumerate every possible path > within the network or having to have a super-deep label stack removes all of > the perceived benefits of cheap and simple. > Looks like the deployments you describe are large DC Clos/Benes fabric, then the potentially deep label imposition would be done by the VMs right? On transit nodes the 64x ECMP or super-deep labels is no problem for NPU/lookup process as it's always just top label lookup and resolving to a single egress interface.
adam
