Users Guide

Layer 2 Switching Commands 487
User Guidelines
It is necessary to configure an Ethernet Maintenance CFM domain and
associated MEPs between the links to be protected. Connectivity Fault
Management CCMs must be configured to operate at the specified
maintenance level to achieve protection switching from causes other than an
interface down event.
Example
This example configures a closed ring node for interface Te1/0/1 and Te1/0/2
using data VLANs 101-103. It assumes that VLANs 100-103 are already
created. A single instance is created and associated with ERP profile1. The
profile sets the hold-off timer to 500 milliseconds. Interface Te1/0/2 is
configured in the Owner role. Interface Te1/0/2 connects to an adjacent
switch port Te1/0/1. Traffic is blocked on these two ports under normal
conditions. VLANs 101-103 are protected. VLAN 100 is used as the
Automatic Protection Switching (APS) VLAN. Only Ethernet CFM messages
at maintenance level 7 are monitored.
console (config)#vlan 100-103
console (config-vlan100-103)#exit
console (config)#interface te1/0/1
console (config-if-Te1/0/1)#switchport mode trunk
console (config-if-Te1/0/1)#interface Te1/0/2
console (config-if-Te1/0/2)#switchport mode trunk
console (config-if-Te1/0/2)#exit
console (config)# ethernet ring g8032 ring1
console (config-erp-ring1)#port0 interface te1/0/1
console (config-erp-ring1)#port1 interface te1/0/2
console (config-erp-ring1)#instance 1
console (config-erp-inst-1)#rpl port1 owner
console (config-erp-inst-1)#inclusion-list vlan-ids 101-103
console (config-erp-inst-1)#aps-channel
console (config-erp-inst-1-aps)#level 7
console (config-erp-inst-1-aps)#raps-vlan 100
Command History
Command introduced in firmware release 6.6.1.