公开(公告)号：US20220407736A1

公开(公告)日：2022-12-22

申请号：US17894673

申请日：2022-08-24

Applicant: Cisco Technology, Inc.

Inventor： Ijsbrand Wijnands ,  Pierre Pfister ,  Neale D.R Ranns ,  W. Mark Townsley ,  Gregory J. Shepherd

IPC: H04L12/18

Abstract: Methods, network devices and computer readable media are disclosed relating to a communication network. In one embodiment, a method includes receiving a message comprising a message bit array. The message bit array identifies egress nodes for the message within a bit indexed explicit replication (BIER) domain of a communications network. A first bit position in the message bit array represents a first one or more of the egress nodes, and a bit value at the first bit position indicates that the message is to be forwarded to one of the first one or more of the egress nodes. The method further includes accessing a first forwarding table entry corresponding to the first bit position, determining whether the first bit position is an anycast bit position having multiple corresponding forwarding table entries, and forwarding the message to one of the first one or more of the egress nodes.