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ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter19 Configuring Circuit Emulation Services
Configuring T1/E1 Structured (n x 64) Circuit Emulation Services
To obtain the destination address for an already configured port in a CES module, 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.
Note Typically you will configure a softPVC 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.
This section describes how to configure a soft PVC for structured service based on the following
assumptions:
The source (active) side of the soft PVC is named CBR-PVC-A.
The destination (passive) side of the softPV C is named CBR-PVC-B.
Four time slots (DS0 channels) are configured for the soft PVC, as follows:
For circuit CBR-PVC-A: DS0 channels 1 to 3 and 7 are used on port CBR 3/0/0.
For circuit CBR-PVC-B: DS0 channels 10 to 13 are used on port CBR 3/0/3.
Channel associated signalling (CAS) is not enabled. For informat ion about configuring a soft PVC
with CAS, see Configuring a Soft PVC for Structured CES, page 19-28.
CES AAL1 service is structured and the clock source is network-d erived.
CES framing is esf and the line code is b8zs.
The status of the circuit will follow the status of the physical interface.
Figure 19-5 shows an example of a soft PVC configured for structured CES.
Figure19-5 Soft PVC Configured for Structured CES
Configuring a softPVC for structured CES is a two-phase process:
Phase 1—Configuring the Destination (Passive) Side of a Soft PVC, page 19-30
Phase 2—Configuring the Source (Active) Side of a Soft PVC, page 19-31
CES port adapter
(module slot 1)
Target switch
27210
CBR-PVC-A
(CBR3/0/0)
(VPI 0, VCI 16)
Source (active) side of PVC
DSO 1-3, and 7
No CAS
CBR-PVC-B
(CBR3/0/3)
(VPI 0, VCI 1040)
Destination (passive) side of PVC
DSO 10-13
No CAS
Circuit 1
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