公开(公告)号：US20240106680A1

公开(公告)日：2024-03-28

申请号：US17954708

申请日：2022-09-28

申请人： ADTRAN, Inc.

发明人： Andrew T. Ruble ,  Douglas T. Albright ,  Darrin Leroy Gieger ,  Stefan Diener ,  Frank Below

IPC分类号： H04L12/46

CPC分类号： H04L12/4637 ,  H04L12/4641

摘要： Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for communication resilience in a Ring Network Topology. In some aspects, a top Ethernet node, implemented in a Ring Network Topology (“RNT”) that includes multiple additional Ethernet nodes, receives downstream traffic having a virtual local area network (“VLAN”) service address. The top Ethernet node can determine that the downstream traffic is destined for a given device serviced by a given Ethernet node, from among the multiple additional Ethernet nodes, that terminates a given Ethernet Ring Protection Switching (“ELPS”) group. The top Ethernet node can determine a given VLAN subnetwork that has been mapped to the given ELPS group, and transmit the downstream traffic through the RNT using the given VLAN subnetwork.