Ethernet ring protection switching offers ITU-T G.8032 specification compliance to achieve resiliency for Ethernet Layer 2 networks. Similar to G.8031 linear protection (also called Automatic Protection Switching (APS)), G.8032 (Eth-ring) is also built on Ethernet OAM and often referred to as Ring Automatic Protection Switching (R-APS).
For further information about Ethernet rings, see ‟G.8032 Protected Ethernet Rings” in the 7450 ESS, 7750 SR, 7950 XRS, and VSR Services Overview Guide.