G.8032 protected Ethernet rings
Ethernet ring protection switching provides ITU-T G.8032 specification compliance to achieve resiliency for Ethernet Layer 2 networks. The G.8032 (Eth-ring) specification is built on Ethernet OAM and often referred to as Ring Automatic Protection Switching (R-APS).
See ‟G.8032 Ethernet Ring Protection Switching” in the 7210 SAS-Mxp, S, Sx, T Services Guide and the 7210 SAS-R6, R12 Services Guide.