An SR Policy is used to instantiate an ordered list of segments. A Segment is and instruction that a node executes on the incoming packet; Forward packet according to the shortest path, Forward packet through a specific interface, Deliver packet to a given application or service etc. A Segment Identifier (SID) identifies a Segment. And …
IGP Adjacency Segment Identifier (Adj-SID) is a local label allocated from SRLB. It is attached to a unidirectional adjacency or a set of unidirectional adjacencies. Segment Routing Adj-SIDs usually represent a link (peering) and have a local significance. Of course It is used with Prefix-SID of local node. Locally significant means that the remote nodes …
Segment Routing divides a network into several segments and assign a segment ID to each segment. A Segment is an instruction that a node executes on the incoming packet; Forward packet according to the shortest path, Forward packet through a specific interface, deliver packet to a given application or service etc. A Segment Identifier (SID) …
SR architecture doesn’t have a specific control plane protocol. A routing protocol, ISIS, OSPF or BGP, is generally used to distribute Segment ID information in the network. Segment Ids distributed by IGP are called IGP Segments and those distributed by BGP are called BGP Segments. An IGP Segment ID (IGP SID) is a type of …
When the whole architecture of routing was designed the idea was sending the packet to the destination by the best path possible. It is achieved based on the routing table build from link-state database which is received from their neighbors. But what if I want to force the packets to go across some other way. …