Force10 Networks: White Paper Download

White Paper Download

10 Gigabit Ethernet WAN PHY

The introduction of 10 Gigabit Ethernet (10 GbE) WAN PHY into the IP/Ethernet networking community has led to confusion over the applicability between 10 GbE WAN PHY and OC-192c/STM-64 interfaces. Both of these interfaces support transmission at 9.6 Gbps, support SONET/SDH framing, and can be connected to SONET/SDH ADM or DWDM gear. So what is the difference? The answer can be boiled down to two things: L2/L3 protocol support, and link diagnostic and maintenance capabilities.

Introduction

Support for Layer 2 and Layer 3

Rich Diagnostic and Maintenance Capabilities

SONET APS and 10 GbE LAG

Protection

Summary

Appendix: WAN PHY Diagnostic CLI Command Example

Appendix: Use of Overhead Bits in SONET and 10 GbE WAN PHY

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