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19-8
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter19 Configuring Circuit Emulation Services
General Guidelines for Creating Soft PVCs for Circuit Emulation Services
To configure soft PVCs for either unstructured or structured circuit emulation services, follow these
steps:
Step 1 Determine which CES interfaces are currently configured in your ATM switch router chassis, using the
show ces status command in privileged EXEC mode.
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
Step 2 Determine which two ports you want to define as participants in the soft PVC.
Step 3 Decide which of the two ports you want to designate as the destination (or passive) side of the soft PVC.
Note This is an arbitrary decision—you can choose either port as the destination end of the circuit.
However, you must decide which port is to function in this capacity and proceed accordingly.
Step 4 Decide whether you want the state of the soft PVC to match the state of the ports.
Step 5 Configure the destination (passive) side of the soft PVC. You must configure the destination end of the
soft PVC first, as this end defines a CES-IWF ATM address for that circuit.
Note If the interface is up, you might have to disable it, using the shutdown command, before you
can configure the circuit. After configuring the circuit, use the no shutdown command to
reenable the interface.
CESwitch# configure terminal
CESwitch(config)# interface cbr 3/0/1
CESwitch(config-if)# shutdown
CESwitch(config-if)# ces circuit 0 circuit-name CBR-PVC-B
CESwitch(config-if)# no shutdown
Step 6 Retrieve the CES-IWF ATM address of the soft PVC’s destination end, using the show ces address
command. The following example shows how to display the CES-IWF ATM address and VPI/VCI for a
CES circuit:
CESwitch# show ces address
CES-IWF ATM Address(es):
47.0091.8100.0000.0060.5c71.1f01.4000.0c80.1030.10 CBR-PVC-A vpi 0 vci 16
47.0091.8100.0000.0060.5c71.1f01.4000.0c80.1030.20 CBR-PVC-AC vpi 0 vci 1056
47.0091.8100.0000.0060.5c71.1f01.4000.0c80.1034.10 CBR-PVC-B vpi 0 vci 1040
47.0091.8100.0000.0060.5c71.1f01.4000.0c80.1038.10 CBR-PVC-CA vp1 0 vci 3088