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
1
2
3
S
w
i
t
c
h
i
n
g
F
a
b
r
i
c
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
.
