Basic Configuration Using the Command-Line Interface
Configuring the D Channels for ISDN Signaling
23
Cisco AS5350XM and Cisco AS5400XM Universal Gateways Software Configuration Guide
Configure
Verify
To verify your D channel configuration, enter the
show interface serial
command and make sure the line
protocol is up and you are using the correct IP interface. Also, make sure that excessive errors are not
being reported.
AS5400#
show interface serial 1/0:23
Serial1/0:23 is up, line protocol is up (spoofing)
Hardware is DSX1
Internet address is 172.16.254.254/16
MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, loopback not set
Last input 00:00:03, output never, output hang never
Last clearing of "show interface" counters 00:00:01
Queueing strategy:fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
1 minute input rate 0 bits/sec, 0 packets/sec
1 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Command
Purpose
Step 1
AS5400>
enable
Password:
password
AS5400#
Enters enable mode. Enters the password. You are
in enable mode when the prompt changes to
AS5350#
or
AS5400#
.
Step 2
AS5400#
configure terminal
Enter configuration commands, one per line.
End with CNTL/Z.
AS5400(config)#
Enters global configuration mode. You are in
global configuration mode when the prompt
changes to
AS5350(config)#
or
AS5400(config)#.
Step 3
AS5400(config)#
interface serial 1/0:23
AS5400(config-if)#
Enters serial interface configuration mode. After
you configure the T1 controller, a corresponding D
channel serial interface is automatically created.
For example, serial interface 1/0:23 is the
D channel for T1 controller 1. You must configure
each serial interface to receive incoming and send
outgoing signaling.
Note
On a channelized E1 PRI line, the serial
interface is 1/0:15.
Step 4
AS5400(config-if)#
ip address
172.16.254.254 255.255.255.0
Assigns an IP address and subnet mask to the
interface.
Step 5
AS5400(config-if)#
isdn incoming-voice
modem
Configures all incoming voice calls.
Note
This command has two possible keywords:
data
and
modem
. You must use the
modem
keyword to enable both modem
and voice calls. The
modem
keyword
represents bearer capabilities of speech.
Step 6
AS5400(config-if)#
exit
Exits interface configuration mode.