[mpls] Some clarifications on draft-dasmith-mpls-ip-options-01.txt

["Rajeev Manur" <rmanur at broadcom.com>]

Hi Authors,

I understand the overall intent of this draft and I support it. I just wanted to get some clarifications on the following cases,

(1) I understand that you propose the ingress LERs to impose a label stack on the received IP_OPTIONs pkts to prevent these pkts from hitting the slow path on the downstream LSRs. It is not clear if you expect this label imposition on ingress LER to happen in the fastpath or slow path?

(2) Similarly it would be good to clarify if such packets need to be handled in slow-path / fast-path once they reach the egress of the LSP tunnel.

In my opinion this draft does not have to mandate the default behavior. We could just specify label imposition of IP_OPTIONs pkts as one of the mandatory modes of operation for compliance, letting the operators/vendors chose the default that suits them best.

Thanks !

With regards,
Rajeev
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