Abstract
Feature Issue
on Availability
Ethernet provides a simple and low-cost solution at high bandwidth for
metropolitan optical networks. However, native Ethernet still lacks carrier-grade
resilience and management schemes. We propose and demonstrate a low-cost robust
Ethernet-over-fiber network architecture that can recover from both node and
link failures in less than 50 ms and, furthermore, ensure that packet loss is avoided during fault
restoration. We implemented and tested the architecture in a prototype network.
The proposed scalable architecture works with commodity off-the-shelf Ethernet
switches and handles network failures in arbitrary Ethernet-level topologies
by the edge nodes of the network. We present the experimental results of the
protection protocol implementation, showing that the 50 ms carrier-grade
recovery time is achieved.
© 2006 Optical Society of America
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