SR could be instantiated with 2 data planes, MPLS and IPv6 - SR-MPLS and SRv6 respectively. MPLS data plane could be instantiated over either IPv4 or IPv6 (similarly to LDP6), MPLSoUDP->SRoUDP allows transport of SR-MPLS over IP/UDP(RFC8663) and could be used to build innovative, end2end architectures, e.g. draft-bookham-rtgwg-nfix-arch. There is SFC related work, draft-ietf-spring-nsh-sr.
And there’s whole SRv6 thingy... Let me know if I can help in any way. Cheers, Jeff > On Sep 10, 2020, at 08:10, aar...@gvtc.com wrote: > > Interesting... I've never heard of SPRINGv4 > > https://www.juniper.net/us/en/products-services/routing/ptx-series/datasheet > s/1000538.page > > I found it in the bottom section > > I wonder if SPRINGv4 is like SRv6, meaning, SPRING(SR) over IPv4 dataplane? > Or, am I reading way too much into that SPRINGv4 acronym? > > -Aaron > >