2-15
Cisco ME-3600X-24CX Series Switch Chassis Configuration Guide
OL-27620-01
Chapter 2 Configuring T1/E1 Interfaces
Configuring CEM
7.
interface cem 0/number
8.
no ip address
9.
cem 0/number
10.
cem group-number
11.
xconnect peer-ip-address vc-id {encapsulation {mpls}
12.
exit
13.
exit
Configuring CEM Parameters
The following sections describe the parameters you can configure for CEM circuits.
•
Configuring Payload Size (Optional), page 2-15
•
Setting the Dejitter Buffer Size, page 2-16
•
Shutting Down a CEM Channel, page 2-16
Note
The CEM parameters at the local and remote ends of a CEM circuit must match; otherwise, the
pseudowire between the local and remote PE routers will not come up.
Configuring Payload Size (Optional)
To specify the number of bytes encapsulated into a single IP packet, use the pay-load size command. The
size argument specifies the number of bytes in the payload of each packet. The range is from 192 to 256
bytes.
Default payload sizes for an unstructured CEM channel are as follows:
Command
Purpose
Step 1
enable
Enables privileged EXEC mode.
•
Enter your password if prompted.
Step 2
configure terminal
Enters global configuration mode.
Step 3
Router(config)# class cem
mycemclass
Creates a new CEM class.
Step 4
payload-size size
dejitter-buffer size
Enter the configuration commands common to the CEM class. This
example specifies a sample rate, payload size, and dejitter buffer.
Step 5
Router(config-cem-class)# exit
Returns to the config prompt.
Step 6
Router(config)# interface cem 0/1
Router(config-if)# no ip address
Router(config-if)# cem 0 mycemclass
Router(config-if-cem)# xconnect
192.0.2.1 200 encapsulation mpls
Configure the CEM interface that you want to use for the new CEM class.
Note
The use of the xconnect command can vary depending on the type
of pseudowire you are configuring.
Step 7
Router(config-if-cem)# exit
Router(config-if)#
Exits the CEM interface.
Step 8
exit
Exits configuration mode.
