Etienne-Victor Depasquale sent me a pointer to an interesting NANOG discussion: why would we need Segment Routing. It’s well worth reading the whole thread (until it devolves into “that is not how MPLS works” arguments), which happens to be somewhat aligned with my thinking:

• SR-MPLS makes perfect sense (excluding the migration-from-LDP fun)
• SRv6 (in whatever incantation) is mostly a vendor ploy to sell new chipsets.

Enjoy!