Cisco Cisco IOS Software Release 12.4(15)T

You can customize the ATM T3/E3 network module. The features you can customize have default values 
that will probably suit your environment and do not need to be changed. However, you might need to 
enter configuration commands, depending on the requirements for your system configuration and the 
protocols you plan to route on the interface. Perform the tasks in the following sections if you need to 
customize the ATM T3/E3 network module: 

The ATM T3/E3 network module supports different framing types when it is configured as a T3 
connection or an E3 connection. To configure T3 ATM framing on the T3/E3 network module enter the 
following command in interface configuration mode. The no form of this command removes T3 ATM 
framing.

To configure E3 ATM framing on the ATM T3/E3 network module, use the following command in 
interface configuration mode. The no form of this command removes E3 ATM framing.

G751adm framing is not supported on the ATM T3/E3 network module.

Router(config-if)# atm framing [cbitadm | cbitplcp | 

 | m23plcp] 

Router(config-if)# atm framing cbitadm

Optional. Configures T3 ATM framing type. The default T3 
ATM framing type is cbitplcp

.

Router(config-if)# atm framing [g832adm | g751plcp] 

Router(config-if)# atm framing g751 plcp

Optional. Configures E3 ATM framing type The default E3 
ATM framing type is g832.adm.