The recent Study Group 15
meeting saw agreement on a new standard that defines Ethernet ring protection switching (ERPS) in multiple rings.
The work has been driven by the move by operators to offer Ethernet services with the same level of service protection offered in networks based on synchronous digital hierarchy (SDH).
The standard gives sub-50 millisecond (ms) protection for Ethernet traffic in a ring topology and at the same time ensures that there are no loops formed at the Ethernet layer. The protocol is said to be robust enough to work for unidirectional failure and multiple link failure scenarios.
Experts say that there are already products on the market deploying the standard. G.8032
offers a flexible topology with single or interconnected multi-rings; broad applications for access, metro, and core networks; support for Ethernet speeds (1/10/40/100GbE MAC); support for multiple Ethernet services; client-server agnostics and OPEX and CAPEX savings.