Segment routing, a form of computer networking, is a modern variant of source routing that is being developed within the SPRING and IPv6 working groups of the IETF.
In a segment routed network, an ingress node may prepend a header to packets that contain a list of segments, which are instructions that are executed on subsequent nodes in the network.
Segments in a SRH are encoded in a list of IPv6 addresses.
The 5f00::/16 prefix has been allocated for this purpose as part of an Internet-Draft.
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