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19-14
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter19 Configuring Circuit Emulation Services
Configuring T1/E1 Unstructured Circuit Emulation Services
The destination address of a soft PVC can point to either of the following:
• Any ATM switch router external ATM port in the network
• A port in any other CES module in the network
For example, to set up a soft PVC involving a local node and a destination node at the opposite edge of
the network, you need to determine the CES-IWF ATM address of the port in the destination node to
complete soft PVC setup.
To obtain the destination address (dest-address) for a port already configured in a CES port adapter, log
into the remote ATM switch router containing that module. Then use the show ces address command to
display all the CES-IWF ATM addresses currently configured for that node.
Figure 19-2 displays a soft PVC configured for unstructured CES. The soft PVC uses adaptive clocking
and the source clock is network-derived.
Note Typically you will configure a soft PVC between CES modules anywhere in your network. For
simplicity, this example and the accompanying procedure describe how to create a soft PVC between
modules in the same ATM switch router chassis.
Figure 19-2 Soft PVC Configured for Unstructured CES
Configuring a soft PVC for unstructured CES is a two-phase process:
• Phase 1—Configuring the Destination (Passive) Side of the Soft PVC, page 19-15
• Phase 2—Configuring the Source (Active) Side of the Soft PVC, page 19-16
CES port adapter
Target switch
27212
CBR-PVC-A
(CBR3/0/0)
(VPI 0, VCI 16)
Source (active) side of PVC
CBR-PVC-B
(CBR3/0/1)
(VPI 0, VCI 1040)
Destination (passive) side of PVC
Circuit 0
0 1
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