19-11
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter 19
Configuring Circuit Emulation Services
Configuring T1/E1 Unstructured Circuit Emulation Services
To configure a hard PVC for unstructured CES, follow these steps, beginning in privileged EXEC mode:
Example
The following example shows how to configure the hard PVC for unstructured CES (shown in
Figure 19-1
):
CESwitch#
show ces status
Interface IF Admin Port Channels in
Name Status Status Type use
------------- -------- --------- ----------- -----------
CBR3/0/0 UP UP T1
CBR3/0/1 DOWN UP T1
CBR3/0/2 DOWN UP T1
CBR3/0/3 UP UP T1
Command
Purpose
Step 1
Switch#
show ces status
Displays information about the current CBR
interfaces.
Use this command to choose the source CBR
port.
Step 2
Switch#
show atm status
Displays information about the current ATM
interfaces.
Use this command to choose the destination ATM
port.
Note
The interface must be up.
Step 3
Switch#
configure terminal
Switch(config)#
At the privileged EXEC prompt, enters global
configuration mode.
Step 4
Switch(config)#
interface cbr
card
/
subcard
/
port
Switch(config-if)#
Selects the physical interface to be configured.
Step 5
Switch(config-if)#
shutdown
Disables the interface.
Step 6
Switch(config-if)#
ces aal1 service
{
structured
|
unstructured
}
Configures the CES interface AAL1 service type.
Step 7
Switch(config-if)#
ces aal1 clock
{
adaptive
|
srts
|
synchronous
}
Configures the AAL1 clock mode.
Step 8
Switch(config-if)#
ces circuit
circuit-id
circuit-name
name
Configures the CES interface circuit identifier
and circuit name.
Note
For unstructured service, use 0 for the
circuit identifier.
Step 9
Switch(config-if)#
ces pvc
circuit-id
interface
atm
card
/
subcard
/
port
vpi
vpi
vci
vci
Configures the hard PVC to the ATM interface
and VPI/VCI.
Note
The VPI/VCI are arbitrary here. They are
not fixed, whereas the VPI/VCI described
in
General Guidelines for Creating
Soft PVCs for Circuit Emulation
Services, page 19-7
are fixed.
Step 10
Switch(config-if)#
no shutdown
Reenables the interface.