Allied Telesis AlliedWare Plus Operating System Version 5.4.4C (x310-26FT,x310-26FP,x310-50FT,x310-50FP) - Manual (Page 1483)

Software Reference for x310 Series Switches
C613-50046-01 REV A AlliedWare Plus TM Operating System - Version 5.4.4C 57.1
Chapter 57: EPSR Introduction and
Configuration
Introduction ........................................................................................................................................ 57.2
Ring Components and Operation............................................................................................... 57.2
Fault Detection and Recovery ...................................................................................................... 57.4
Fault Recovery............................................................................................................................. 57.4
Restoring Normal Operation.................................................................................................. 57.5
Managing Rings with Two Breaks........................................................................................ 57.6
Recovery When One Break is Restored .............................................................................. 57.8
Configuration Examples ...............................................................................................................57.10
Single Domain, Single Ring Network................................................................................57.10
Single Ring, Dual Domain Network...................................................................................57.15
Interconnected Rings ....................................................................................................................57.16
Superloop Protection .............................................................................................................57.17
EPSR Superloop Prevention .................................................................................................57.18
Configuring a Basic Superloop Protected Two Ring EPSR Network......................57.21
Sample Show Output .............................................................................................................57.36
Adding a new data VLAN to a functioning superloop topology ............................57.39
EPSR and Spanning Tree Operation..................................................................................57.42