Re: [spring] SRv6 Network Programming: ENH = 59

[Ole Troan <[e-mail]>]

Ron,

> <adding the SPRING mailing list, because this is a SPRING draft>
> 
> Folks,
> 
> Sections 4.4 through 4.12 of draft-ietf-spring-srv6-network-programming-00 define a set of SIDs that have the following things in common:
> 
> - they are consumed by the egress node (SL == 0)
> - they tell the egress node how to forward the payload into a VPN
> 
> If the payload is IPv4, the next-header value in the SRH must be IP4 (value 4).
> If the payload is IPv6, the next-header value in the SRH must be IPv6 (value 41).
> If the payload is Ethernet, the next-header value in the SRH must be No Next Header (value 59).
> 
> In the interest of consistency, we should probably allocate a new next-header value for Ethernet and use it.

It's a fairly precious name space though.
What would a general IP stack do with an Ethernet frame? It's kind of a neat feature that "IP processing terminates here".
Or are we going to specify Ethernet over IP?

Cheers,
Ole