DETAILED STEPS
Purpose
Command or Action
Enters the global configuration mode.
Router#
configure terminal
Step 1
Configures a local switching connection between cemckt1 of
CEM interface x/y/z and cemckt2 of CEM interface a/b/c.
Router(config)# [no] connect name cem x/y/z circuit-id
cem a/b/c circuit-id
Step 2
Example:
Router(config)# connect cem cem 0/1/0 cemckt1
cem 0/2/0 cemckt2
The no form of this command unconfigures a local switching
connection between cemckt1 of CEM interface x/y/z and
cemckt2 of CEM interface a/b/c.
Backs up a locally switched CEM connection.
Router(config-connection)# backup interface cemx/y/z
circuit-id
Step 3
Example:
Router(config-connection)# backup interface cem
0/3/0 3
Verifying Backup and Primary Circuits
Use the show xconnect all command to check the status of the backup and primary circuits.
Configuring Pseudowire Redundancy
The SPA-1CHOC3-CE-ATM, SPA-2CHT3-CE-ATM, and SPA-24CHT1-CE-ATM support the L2VPN
Pseudowire Redundancy feature that provides backup service for CEM pseudowires. Configuring a Pseudowire
Redundancy is an optional task.The L2VPN Pseudowire Redundancy feature enables the network to detect
a failure and reroute the Layer 2 (L2) service to another endpoint that can continue to provide service. This
feature provides the ability to recover from a failure of either the remote PE router or the link between the PE
router and the CE router.
Configure pseudowire redundancy by configuring two pseudowires for a CEM interface, a primary pseudowire
and a backup (standby) pseudowire. If the primary pseudowire goes down, the router uses the backup
pseudowire in its place. When the primary pseudowire becomes functional again, the backup pseudowire is
brought down and the router resumes the use of the primary pseudowire.
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide, Cisco IOS XE
Everest 16.5
OL-14127-17
505
Configuring the Circuit Emulation over Packet Shared Port Adapter
Configuring Pseudowire Redundancy