19-20
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 configure the CES port for structured CES, follow these steps, beginning in privileged EXEC mode:
Example
The following example shows how to configure the hard PVC for structured T1 CES, as shown in
Figure 19-3:
CESwitch# show ces status
Interface IF Admin Port Channels in
Name Status Status Type use
------------- -------- --------- ----------- -----------
CBR3/0/0 UP UP T1
CBR3/0/1 UP UP T1
CBR3/0/2 UP UP T1
CBR3/0/3 UP UP T1
CESwitch# show atm status
NUMBER OF INSTALLED CONNECTIONS: (P2P=Point to Point, P2MP=Point to MultiPoint,
MP2P=Multipoint to Point)
Type PVCs SoftPVCs SVCs TVCs PVPs SoftPVPs SVPs Total
P2P 27 2 13 0 0 0 0 42
P2MP 0 0 2 0 0 0 0 2
MP2P 0 0 0 0 0 0 0 0
TOTAL INSTALLED CONNECTIONS = 44
PER-INTERFACE STATUS SUMMARY AT 18:12:45 UTC Thu Jul 22 1999:
Interface IF Admin Auto-Cfg ILMI Addr SSCOP Hello
Command Purpose
Step1 Switch# show ces status Displays information about current CBR
interfaces.
Use this command to choose the source port.
Step2 Switch# show atm status Displays information about current ATM
interfaces.
Use this command to choose the destination port.
Step3 Switch# configure terminal
Switch(config)#
At the privileged EXEC prompt, enters global
configuration mode.
Step4 Switch(config)# interface cbr card/subcard/port
Switch(config-if)#
Selects the physical interface to be configured.
Step5 Switch(config-if)# shut Shuts down the interface.
Step6 Switch(config-if)# ces aal1 service {structured |
unstructured}
Configures the CES interface AAL1 service type.
Step7 Switch(config-if)# ces dsx1 clock source
{loop-timed | network-derived}
Configures the CES interface clock source.
Step8 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.