SRGB stands for Segment Routing Global Block. SRGB is a local property of a node and identifies labels reserved for global segments. In the MPLS Data Plane, Prefix-SIDs are allocated from Segment Routing Global Block (SRGB). It can be hard coded or it may be indexed to the SRGB. During the control plane advertisements both SRGB and …
Segment Routing divides a network path into several segments which may include Nodes and links. And assigns a segment ID (SID) to each segment and forwarding node. A prefix segment identifier (SID) usually identifies a segment routing tunnel destination which is the loopback ip address of the destination node. An Adjacency Segment Identifier (adj-SID) is …