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19-16
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter19 Configuring Circuit Emulation Services
Configuring T1/E1 Unstructured Circuit Emulation Services
CESwitch(config-if)# ces dsx1 clock source network-derived
CESwitch(config-if)# ces circuit 0 circuit-name CBR-PVC-B
CESwitch(config-if)# no shutdown
Note If you do not specify the circuit name and logical name parameters in the command line, the system
automatically assigns a unique default name in the form CBRx/y/z:# for the circuit being configured. For
example, the default name for this particular circuit is CBR3/0/1:0.
Phase 2—Configuring the Source (Active) Side of the Soft PVC
To configure the source (active) side of a soft PVC destination port, follow these steps, beginning in
privileged EXEC mode:
Command Purpose
Step 1
Switch# show ces address Shows the CES address and VPI/VCI for the
destination end of the circuit.
Use this command to retrieve the destination’s
VPI/VCI.
Step 2
Switch# configure terminal
Switch(config)#
At the privileged EXEC prompt, enters global
configuration mode.
Step 3
Switch(config)# interface cbr card/subcard/port
Switch(config-if)#
Selects the physical interface to be configured.
Step 4
Switch(config-if)# shutdown Disables the interface.
Step 5
Switch(config-if)# ces aal1 service {structured |
unstructured}
Configures the CES interface AAL1 service type.
Step 6
Switch(config-if)# ces aal1 clock {adaptive | srts
| synchronous}
Configures the CES interface AAL1 clock mode.
Step 7
Switch(config-if)# ces dsx1 clock source
{loop-timed | network-derived}
Configures the CES interface clock source.
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
dest-address remote_atm_address vpi vpi vci vci
[follow-ifstate]
Configures the soft PVC to the destination
CES-IWF ATM addresses and VPI/VCI of the
circuit.
Note Use the destination’s VPI/VCI, which
you retrieved in Step 1.
The follow-ifstate keyword configures the source
(active) port circuit status to follow the status of
the physical interface. The default circuit setting
ignores the status of the physical interface.
Step 10
Switch(config-if)# no shutdown Reenables the interface.