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19-49
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter 19 Configuring Circuit Emulation Services
Configuring T1/E1 CES SVCs
Figure 19-9 Switched VC Configured for Structured CES
Configuring a switched VC for structured CES is a two-phase process:
• Phase 1—Configuring the Destination (Passive) Side of the Structured Switched VC, page 19-49
• Phase 2—Configuring the Source (Active) Side of the Structured Switched VC, page 19-51
Phase 1—Configuring the Destination (Passive) Side of the Structured Switched VC
To configure a destination (passive) side of a switched VC for structured CES, follow these steps,
beginning in privileged EXEC mode:
CES port adapter
(module slot 1)
Target switch
79602
CBR-SVC-A
(CBR0/0/0)
(VPI 0, VCI 16)
Source (active) side of PVC
DSO 1-3, and 7
No CAS
CBR-SVC-B
(CBR0/0/1)
(VPI 0, VCI 1040)
Destination (passive) side of PVC
DSO 10-13
No CAS
Circuit 1
0
123
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Command Purpose
Step 1
Switch# show ces status Displays information about the current CBR
interfaces. Use this command to choose the
destination port.
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 dsx1 clock source
{loop-timed | network-derived}
Configures the clock source.
Step 7
Switch(config-if)# ces dsx1 framing {sf | esf}
Switch(config-if)# ces dsx1 framing
{e1_crc_mfCAS_lt | e1_crc_mf_lt | e1_lt |
e1_mfCAS_lt}
Configures the CES T1 framing type. The default
is esf.
Configures the CES E1 framing type. For
CES E1, the default is e1_lt.