19-38
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter 19
Configuring Circuit Emulation Services
Configuring T1/E1 Structured (n x 64) Circuit Emulation Services
CESwitch(config-if)#
shutdown
CESwitch(config-if)#
ces circuit 1 cas on-hook-detect 2
CESwitch(config-if)#
no shutdown
Note
The four ABCD bits in the CAS mechanism are device-specific, depending on the manufacturer of the
voice/video telephony device that generates the CBR traffic. The ABCD bits of the CAS mechanism are
user-configurable.
Verifying a Soft PVC for Structured CES with CAS and On-Hook Detection
Enabled
To show the on-hook detection configuration of a soft PVC configured with structured CES and CAS
enabled, use the following EXEC command:
Example
The following example shows the soft PVC with CAS and on-hook detection enabled as hexadecimal
number 2 (shown in
Figure 19-6
):
CESwitch#
show ces circuit interface cbr 3/0/3 1
Circuit: Name CBR-PVC-B, Circuit-state ADMIN_UP / oper-state UP
Interface CBR3/0/3, Circuit_id 1, Port-Type T1, Port-State UP
Port Clocking network-derived, aal1 Clocking Method CESIWF_AAL1_CLOCK_SYNC
Channel in use on this port: 10-13
Channels used by this circuit: 10-13
Cell-Rate: 698, Bit-Rate 256000
cas ON, cell_header 0xC100 (vci = 3088)
Configured CDV 2000 usecs, Measured CDV unavailable
De-jitter: UnderFlow unavailable, OverFlow unavailable
ErrTolerance 8, idleCircuitdetect OFF, onHookIdleCode 0x2
state: VcActive, maxQueueDepth 45, startDequeueDepth 28
Partial Fill: 47, Structured Data Transfer 98
Passive SoftVC
Src: atm addr 47.0091.8100.0000.00e0.4fac.b401.4000.0c81.803c.10 vpi 0, vci 3088
Dst: atm addr 47.0091.8100.0000.00e0.4fac.b401.4000.0c81.8030.00
Creating Multiple Structured Soft PVCs on the Same CES Port
This section describes how to create more than one structured soft permanent virtual channel (soft PVC)
on the same CES T1/E1 port.
Figure 19-7
shows how you can configure multiple CES circuits on a single
T1/E1 port.
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.
Command
Purpose
show ces circuit interface cbr
card
/
subcard
/
port circuit-id
Shows the detailed interface configuration
information for the soft PVC.