SRv6+

SRv6+ is an IPv6 architecture that supports traffic engineering and network programmability. Specifically, it supports both strict and loose source routing using a new Routing Header type, called the Compressed Routing Header (CRH). It also supports per-segment and per-path service instructions, using new IPv6 Destination Options. Per-segment service instructions support service function chaining, while per path service instructions support decapsulation and VPN forwarding.

SRv6+ differs from its predecessors in that a) it adheres strictly to the IPv6 addressing architecture [RFC 4291], b) it adheres strictly to IPv6 [RFC 8200] processing rules, c) it leverages existing IPv6 protocol machinery to the greatest degree possible. SRv6+ also differs from its predecessor it that it is optimized for ASIC-based forwarding devices.