Ethernet Automatic Protection Switching; Overview Of The Eaps Protocol - Extreme Networks 200 Series Installation And User Manual

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Ethernet Automatic Protection Switching

This chapter describes the use of the Ethernet Automatic Protection Switching (EAPS ™ ) protocol, and
includes information on the following topics:
• Overview of the EAPS Protocol on page 143
• Summit 200 Series Switches in Multi-ring Topologies on page 147
• Commands for Configuring and Monitoring EAPS on page 148

Overview of the EAPS Protocol

The EAPS protocol provides fast protection switching to Layer 2 switches interconnected in an Ethernet
ring topology, such as a Metropolitan Area Network (MAN) or large campuses (see Figure 25).
Figure 25: Gigabit Ethernet fiber EAPS MAN ring
Transit
node
Transit
node
Transit
Gigabit Ethernet Fiber node
EAPS MAN ring
Transit
node
Master
node
EW_070
Summit 200 Series Switch Installation and User Guide 143