The following figure shows an example of pseudowire redundancy.
Figure 14: Pseudowire Redundancy
To configure pseudowire redundancy on a SPA-1CHOC3-CE-ATM, SPA-2CHT3-CE-ATM, or
SPA-24CHT1-CE-ATM perform the following steps.
You must configure the backup pseudowire to connect to a router that is different from the primary
pseudowire.
Note
SUMMARY STEPS
1.
Router#
enable
2.
Router#
configure terminal
3.
Router(config)#
interface cem slot/subslot/port
4.
Router(config-if)#
cem group-number
5.
Router(config-if-cem)#
xconnect peer-router-id vcid
{
encapsulation mpls
|
pw-class pw-class-name
}
6.
Router(config-if-cem-xconn)#
backup peer peer-router-ip-addr vcid
[
pw-class pw-class-name
]
DETAILED STEPS
Purpose
Command or Action
Enters the Privileged EXEC mode.
Router#
enable
Step 1
Enters the global configuration mode.
Router#
configure terminal
Step 2
Selects the CEM interface where the CEM circuit (group) is located (where
slot
/
subslot
is the SIP slot and SPA subslot and
port
is the SPA port where
the interface exists).
Router(config)#
interface cem
slot/subslot/port
Step 3
Selects the CEM circuit (group) to configure a pseudowire.
Router(config-if)#
cem group-number
Step 4
Configures a pseudowire to transport TDM data from the CEM circuit
across the MPLS network.
Router(config-if-cem)#
xconnect
peer-router-id vcid
{
encapsulation mpls
|
pw-class pw-class-name
}
Step 5
•
peer-router-id
is the IP address of the remote PE peer router.
•
vcid
is a 32-bit identifier assigned to the pseudowire. The same
vcid
must be used for both ends of the pseudowire.
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide, Cisco IOS
XE Everest 16.5
506
OL-14127-17
Configuring the Circuit Emulation over Packet Shared Port Adapter
Configuring Pseudowire Redundancy