Patent ID: 11936557
Assignee: CIENA CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An initiator node operating in a network, the initiator node comprising:
a processing device, and
a memory device configured to store a computer program having instructions that, when executed, enable the processing device to
send an echo request in a forward direction to a reflector node operating in the network,
wherein the echo request is sent to the reflector node to discover a reverse path in a reverse direction from the reflector node to the initiator node,
wherein the reverse path is discovered for the purpose of initiating a Bidirectional Forwarding Detection (BFD) or Multi-Protocol Label Switching (MPLS) Ping procedure,
wherein the echo request includes an appeal to obtain information about one or more Segment Routing (SR) policies in the reverse direction, and wherein each of the one or more SR policies includes a label stack that defines one or more intermediate nodes in an SR path from the reflector node to the initiator node, and
wherein the information includes a court (N), one or more constraint flags, and one or more path constraint parameters, wherein the count N represents a maximum number of SR policies in the reverse direction to be obtained, and wherein each of the one or more constraint flags indicates whether a respective path constraint parameter is to be obtained.