Patent ID: 11876695
Assignee: JUNIPER NETWORKS, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A system for supporting echo or traceroute functionality in a path spanning multiple autonomous systems (ASes) having segment routing (SR) enabled, the path including an ingress node and an egress node, the system including the ingress node, the ingress node comprising:
a) an input interface for obtaining
1) A return label stack to reach the ingress node from the egress node, wherein the return label stack includes at least two types of labels selected from a group of label types consisting of (A) an Interior Gateway Protocol (IGP) segment identifier, (B) an IGP node segment identifier, (C) an IGP adjacency segment identifier, (D) a border gateway protocol (BGP) segment identifier, and (E) a binding segment identifier, and
2) a label stack to reach, from the ingress node, the egress node;

b) at least one processor for generating a request message including both (1) the label stack and (2) the return label stack; and
c) an output interface for sending the request message towards the egress node using the label stack.