Verifying Active Calls

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Client#show isdn

active

ISDN ACTIVE CALLS

Call Calling Type Number Units/Currency

Called Number

Remote Seconds Name Used

Seconds Left

Seconds Charges Idle

In 6119

6120

Server 12

107

12

Server#show isdn active

ISDN ACTIVE CALLS

Call Calling

Called

Remote

Seconds

Seconds

Seconds Charges

Type Number

Number

Name

Used

Left

Idle

Units/Currency

Out

6120

Client

17

102

© 2001, Cisco Systems, Inc. All rights reserved.

Cisco CCIE Prep vl.D—ModuIe 3-81

The show isdn active command displays information about the current call. This command can be used to verify that PPP callback was successfully completed. If callback is successful, show isdn active will show the call as incoming on the callback client and outgoing on the callback server.

Verifying Call Reason

R4# show dialer interface bri 0/0

BRI0/0 - dialer type = ISDN

Dial String Successes Failures Last called Last status

0 incoming call(s) have been screened.

Idle timer (12 0 secs), Fast idle timer (20 secs) Wait for carrier (30 secs), Re-enable (15 secs)

Dialer state is data link layer up

Dial reason: ip (s=172.16.14.1, d=172.16.14.2)

Interface bound to profile Dialer1

Time until disconnect 102 secs Current call connected 00:00:19 Connected to 5773872 (R1)

Idle timer (12 0 secs), Fast idle timer (20 secs) Wait for carrier (30 secs), Re-enable (15 secs) Dialer state is idle

* Used to verify reason for DDR call

© 2001, Cisco Systems, Inc. All rights reserved. Cisco CCIE Prep v1.0—Module 3-82

To display general diagnostic information for interfaces configured for Dial-on-Demand Routing (DDR), use the show dialer command in EXEC mode.

If you enter the show dialer interface command for the D channel of an ISDN BRI or PRI, the command output also displays the B channels. The show dialer interface bri 0/0 command displays information of interfaces bri 0/0, bri 0/0:1, and bri 0/0:2. The show dialer interface serial 0:23 command (for a channelized T1 line configured for ISDN PRI) displays information for serial interfaces 0:23, 0:0, 0:1, and so forth through 0:22.

If you have defined a dialer group that consists of the interfaces serial 0, serial 1, and bri 0/0, the show dialer interface dialer 1 command displays information for interfaces bri 0/0, bri 0/0:1, bri 0/0:2, serial 1, and serial 0.

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