Special ISDN Signaling Commands

This chapter describes the function and displays the syntax for special ISDN signaling commands. For more information about defaults and usage guidelines, see the corresponding chapter of the Dial Solutions Command Reference.

autodetect encapsulation

To enable automatic detection of the encapsulation types in operation over a point-to-point link to a specified serial or ISDN interface, use the autodetect encapsulation interface configuration command. To disable automatic, dynamic detection of the encapsulation types in operation on a link, use the no form of this command.

autodetect encapsulation encapsulation-type
no autodetect encapsulation

encapsulation-type

One or both of the encapsulation keywords v120 and ppp.

cpp authentication

To enable negotiation of authentication with a router or bridge that supports the Combinet Proprietary Protocol (CPP) and that is calling in to this router, use the cpp authentication interface configuration command. To disable negotiation of CPP authentication, use the no form of this command.

cpp authentication
no cpp authentication

cpp callback accept

To enable the router to accept callback from a Combinet router or bridge that supports the Combinet Proprietary Protocol (CPP), use the cpp callback accept interface configuration command.

cpp callback accept

dialer isdn short-hold

To configure the router to disconnect a call at the end of the current charging period if the line has been idle for at least the specified minimum period, use the dialer isdn short-hold map-class dialer configuration command. To reset the ISDN short-hold timer to the default period, use the no form of the command.

dialer isdn short-hold seconds
no dialer isdn short-hold

seconds

Minimum number of seconds of idle time on the line. Default is 120 seconds.

dialer map (AOC)

To configure an ISDN interface to place a call to multiple sites, to authenticate calls from multiple sites, and to identify the class name that configures the ISDN AOC short-hold idle timeout, use the following form of the dialer map interface configuration command:

dialer map protocol next-hop-address [name hostname] [spc] [speed 56 | 64] [broadcast]
class class-name [dial-string[:isdn-subaddress]]
no dialer map protocol next-hop-address [name hostname] [spc] [speed 56 | 64] [broadcast]
class class-name [dial-string[:isdn-subaddress]]

protocol	Protocol keywords; one of the following: appletalk, bridge, clns, decnet, ip, ipx, novell, snapshot, vines, and xns.
next-hop-address	Protocol address used to match against addresses to which packets are destined. This argument is not used with the bridge protocol keyword.
name hostname	(Optional) Case-sensitive name or ID of the remote device (usually the host name). For routers with ISDN interfaces, if calling line identification--sometimes called CLI, but also known as caller ID and automatic number identification (ANI)--is provided, the hostname field can contain the number that the calling line ID provides.
spc	(Optional) Specifies a semipermanent connection between customer equipment and the exchange; used only in Germany to configure connections between an ISDN BRI and a 1TR6 ISDN switch type.
speed 56 | 64	(Optional) Line speed in kilobits per second to use. Used for ISDN only. The default speed is 64 kbps.
broadcast	(Optional) Indicates that broadcasts should be forwarded to this protocol address.
class class-name	Name of the class that configures the ISDN AOC static dialer timeout period or the short-hold timeout period or both.
dial-string[:isdn-subaddress]	(Optional) Telephone number and optional ISDN subaddress used for ISDN multipoint connections that are sent to the dialing device when it recognizes packets with the specified next hop address that matches the access lists defined. The dial string and ISDN subaddress, if used, must be the last item in the command line.

dialer map (SPC)

To set up network addressing on an ISDN BRI interface to support semipermanent connections (if the ISDN switch supports such connections), use the following form of the dialer map interface configuration command:

dialer map protocol next-hop-address [name hostname] spc [speed 56 | 64] [broadcast]
dial-string[:isdn-subaddress]
no dialer map protocol next-hop-address [name hostname] spc [speed 56 | 64] [broadcast]
dial-string[:isdn-subaddress]

protocol	Protocol keywords; one of the following: appletalk, bridge, clns, decnet, ip, ipx, novell, snapshot, vines, and xns.
next-hop-address	Protocol address used to match against addresses to which packets are destined. This argument is not used with the bridge protocol keyword.
name hostname	(Optional) Case-sensitive name or ID of the remote device (usually the host name). For routers with ISDN interfaces, if calling line identification--sometimes called CLI, but also known as caller ID and automatic number identification (ANI)--is provided, the hostname field can contain the number that the calling line ID provides.
spc	(Optional) Specifies a semipermanent connection between customer equipment and the exchange; used only in Germany to configure connections between an ISDN BRI and a 1TR6 ISDN switch type.
speed 56 | 64	(Optional) Line speed in kilobits per second to use. Used for ISDN only. The default speed is 64 kbps.
broadcast	(Optional) Indicates that broadcasts should be forwarded to this protocol address.
dial-string[:isdn-subaddress]	(Optional) Telephone number and optional ISDN subaddress used for ISDN multipoint connections that are sent to the dialing device when it recognizes packets with the specified next hop address that matches the access lists defined. The dial string and ISDN subaddress, if used, must be the last item in the command line.

encapsulation cpp

To enable encapsulation for communication with routers or bridges using the Combinet Proprietary Protocol (CPP), use the encapsulation cpp interface configuration command.

encapsulation cpp

isdn leased-line bri 128

To configure an ISDN BRI for leased-line service at 128 kbps, use the isdn leased-line bri 128 global configuration command.

isdn leased-line bri number 128

number

BRI interface number.

isdn service

To take an individual B channel or an entire PRI interface out of service or set it to a different channel service state that is passed in to the switch, use the isdn service interface configuration command.

isdn service dsl number b_channel number state state-value

dsl number	Digital subscriber loop number; displayed with the show isdn status command.
b_channel number	B channel or range of B channels to be set with the passed-in state value. The b_channel 0 keyword sets the entire PRI interface to a specified state value. B channel numbers range from 1 to 24.
state state-value	Desired channel service state to be set on the channels. The following channel service state values are supported: 0--In service 1--Maintenance 2--Out of service

pri-group timeslots nfas_d

To configure NFAS and specify the channels to be controlled by the primary NFAS D channel, use the pri-group timeslots nfas_d controller configuration command.

pri-group timeslots range nfas_d [primary | backup | none] nfas_interface number
nfas_group number

range	Channels in the range 1 to 24. A range of channels is shown with a hyphen (-).
primary	(Optional) Function of channel 24: the primary NFAS D channel.
backup	(Optional) Function of channel 24: the backup NFAS D channel.
none	(Optional) Function of channel 24: B channel.
nfas_interface number	Value in the range 0 to 9 assigned by the service provider to ensure unique identification of a PRI interface. The 0 interface number should be assigned to the primary NFAS D channel.
nfas_group number	Group identifier unique on the router. Multiple NFAS groups can exist on the router.

show isdn

To display the information about memory, Layer 2 and Layer 3 timers, and the status of PRI channels, use the show isdn global configuration command.

show isdn {active | history | memory | services | status [dsl | interface-type number] | timers}

active	Displays current call information, including called number, the time until the call is disconnected, AOC charging units used during the call, and whether the AOC information is provided during calls or at end of calls.
history	Displays historic and current call information, including the called number, the time until the call is disconnected, AOC charging time units used during the call, and whether the AOC information is provided during calls or at the end of calls.
memory	Displays memory pool statistics. This keyword is for use by technical development staff only.
services	Displays the status of PRI channels.
status [dsl | interface-type number]	Displays the status of all ISDN interfaces or, optionally, a specific digital signal link (DSL) or a specific ISDN interface. Values of dsl range from 0 to 15. Interface-type can be bri or serial.
timers	Displays the values of Layer 2 and Layer 3 timers.

show isdn nfas group

To display all the members of a specified NFAS group or all NFAS groups, use the show isdn nfas group privileged EXEC command.

show isdn nfas group [number]

number

(Optional) Identifier number of a specific NFAS group.

show isdn service

To display the state and the service status of each ISDN channel, use the show isdn service privileged EXEC command.

show isdn service