|
|
This chapter describes commands needed to configure channelized E1 and channelized T1 for the following:
In Cisco IOS Release 11.3, all commands supported on the Cisco 7500 series are also supported on the Cisco 7000 series.
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| encapsulation-type | One or both of the encapsulation keywords v120 and ppp. |
Disabled
Interface configuration
This command first appeared in Release 11.2.
At least one encapsulation type is required in the command, but you can specify additional encapsulation types.
Use this command to enable the specified serial or ISDN interface to accept calls and dynamically change the encapsulation in effect on the interface when the remote device does not signal the call type. For example, if an ISDN call does not identify the call type in the Lower Layer Compatibility fields and is using an encapsulation that is different from the one configured on the interface, the interface can change its encapsulation type dynamically.
This command enables interoperation with ISDN terminal adapters that use V.120 encapsulation but do not signal V.120 in the call setup message. An ISDN interface that by default answers a call as synchronous serial with PPP encapsulation can change its encapsulation and answer such calls.
Automatic detection is attempted for the first 10 seconds after the link is established or the first five packets exchanged over the link, whichever is first.
You can use the master indexes or search online to find documentation of related commands.
encapsulation
To configure an E1 controller on a Cisco AS5200 with channel associated signaling (also known as robbed bit signaling), use the cas-group controller configuration command. Use the no form of this command to disable channel associated signaling for one or more timeslots.
cas-group channel timeslots range type signal| channel | Single channel group number, in the range 0 to 30. |
| timeslots range | One or more ranges of timeslot values, in the range 1 to 31. You can specify timeslot ranges (for example, 1-31), individual timeslots separated by commas (for example 1, 3, 5), or a combination of the two (for example 1-3, 8, 17-31). The 16th timeslot is not specified in the command line, because it is reserved for transmitting the channel signaling. |
| type signal | Specifies the type of channel associated signaling. Choose one of the following signal types to configure:
· e&m-fgb--Specifies ear and mouth channel signaling with feature group b support. · e&m-fgd--Specifies ear and mouth channel signaling with feature group d support. · fxs-loopstart-- Specifies foreign exchange system loopstart signaling support. · fxs-groundstart--Specifies foreign exchange system ground start signaling support. · sas-loopstart--Specifies specific access station loopstart signaling support. · sas-groundstart--Specifies specific access station ground start signaling support. |
No channel associated signaling is configured on the controller.
Controller configuration
This command first appeared in Cisco IOS Release 11.2.
Use this command to configure support for incoming and outgoing call signals (such as on-hook and off-hook) on each E1 controller.
If you specify the timeslot range 1-31 at the router prompt, the system software automatically uses the 16th timeslot to transmit the channel associated signaling.
The following example configures timeslots 1-30 with ear and mouth channel signaling with feature group b support on a Cisco AS5200. Because the signaling is transmitted through the 16th timeslot, this timeslot is not brought up or displayed in the output.
Router#configure terminalEnter configuration commands, one per line. End with CNTL/Z. Router(config)#controller e1 0Router(config-controller)#cas-group 1 timeslots 1-31 type e&m-fgbRouter(config-controller)# %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 1 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 2 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 3 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 4 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 5 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 6 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 7 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 8 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 9 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 10 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 11 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 12 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 13 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 14 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 15 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 17 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 18 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 19 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 20 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 21 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 22 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 23 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 24 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 25 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 26 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 27 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 28 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 29 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 30 is up %DSX0-5-RBSLINEUP: RBS of controller 0 timeslot 31 is up
To configure channelized T1 timeslots with channel associated signaling (also known as robbed bit signaling), which enables a Cisco AS5200 modem to receive and transmit analog calls, use the cas-group controller configuration command. Use the no form of this command to disable channel associated signaling for one or more timeslots.
cas-group channel timeslots range type signal| channel | Single channel group number, in the range 0 to 23. |
| timeslots range | One or more ranges of timeslot values, in the range 1 to 24. You can specify timeslot ranges (for example, 1-24), individual timeslots separated by commas (for example 1, 3, 5), or a combination of the two (for example 1-3, 8, 15-23). The 24th timeslot is not specified in the command line, because it is reserved for transmitting the channel signaling. |
| type signal | Type of channel associated signaling. Choose one of the following signal types:
· e&m-fgb--Specifies ear and mouth channel signaling with feature group b support. · e&m-fgd--Specifies ear and mouth channel signaling with feature group d support. · fxs-loopstart--Specifies foreign exchange system loopstart signaling support. · fxs-groundstart--Specifies foreign exchange system ground start signaling support. · sas-loopstart--Specifies specific access station loopstart signaling support. · sas-groundstart--Specifies specific access station ground start signaling support. |
No channelized T1 robbed bit signaling is configured.
Controller configuration
This command first appeared in Cisco IOS Release 11.2.
Use this command to enable a Cisco AS5200 modem to receive and transmit incoming and outgoing call signaling (such as on-hook and off-hook) through each T1 controller that is configured for a channelized T1 line.
Switched 56 digital calls are not supported in this feature.
The following example configures all 24 channels with ear and mouth channel signaling with feature group b support on a Cisco AS5200:
AS5200(config)#controller T1 0AS5200(config-controller)#cas-group 1 timeslots 1-24 type e&m-fgbAS5200(config-controller)# %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 1 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 2 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 3 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 4 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 5 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 6 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 7 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 8 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 9 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 10 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 11 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 12 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 13 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 14 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 15 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 16 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 17 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 18 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 19 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 20 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 21 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 22 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 23 is up %DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 24 is up
Use the channel-group controller configuration command to define the timeslots that belong to each T1 or E1 circuit.
channel-group number timeslots range [speed {48 | 56 | 64}]| number | Channel-group number. When configuring a T1 data line, channel-group numbers can be values from 0 to 23. When configuring an E1 data line, channel-group numbers can be values from 0 to 30. |
| timeslots range | One or more timeslots or ranges of timeslots belonging to the channel group. The first timeslot is numbered 1. For a T1 controller, the timeslot range is from 1 to 24. For an E1 controller, the timeslot range is from 1 to 31. |
| speed {48 | 56 | 64} | (Optional) Line speed (in kilobits per second) of the T1 or E1 link. |
The default line speed when configuring a T1 controller is 56 kbps.
The default line speed when configuring an E1 controller is 64 kbps.
Controller configuration
Use this command in configurations where the router or access server must communicate with a T1 or E1 fractional data line. The channel-group number may be arbitrarily assigned and must be unique for the controller. The timeslot range must match the timeslots assigned to the channel group. The service provider defines the timeslots that comprise a channel group.
In the following example, three channel groups are defined. Channel-group 0 consists of a single timeslot, channel-group 8 consists of 7 timeslots and runs at a speed of 64 kbps per timeslot, and channel-group 12 consists of a single timeslot.
channel-group 0 timeslots 1 channel-group 8 timeslots 5,7,12-15,20 speed 64 channel-group 12 timeslots 2
You can use the master indexes or search online to find documentation of related commands.
framing
linecode
Use the clear controller EXEC command to reset the T1 or E1 controller.
clear controller {t1 | e1} slot/port (Cisco 7200 series and Cisco 7500 series)| slot/port | Backplane slot number and port number on the interface. See your hardware installation manual for the specific slot and port numbers. |
| number | Network interface module (NIM) number, in the range 0 through 2. |
EXEC
The following example resets the T1 controller at slot 4, port 0 on a Cisco 7500 series router:
clear controller t1 4/0
The following example resets the E1 controller at NIM 0 on a Cisco 4000 series router:
clear controller e1 0
You can use the master indexes or search online to find documentation of related commands.
controller e1
controller t1
Use the clock source controller configuration command to set the E1 line clock source for the Cisco AS5200.
clock source line {primary | secondary}line | E1 line from which the clocking is taken. |
|---|---|
| primary | Primary TDM clock source. |
| secondary | Secondary TDM clock source. |
Primary TDM clock source is taken from the E1 controller 0 on the Cisco AS5200.
Secondary TDM clock source is taken from the E1 controller 1 on the Cisco AS5200.
Controller configuration
This command first appeared in Cisco IOS Release 11.1.
Configure the clock source line primary command on the controller that takes the most reliable clocking from an E1 line. Configure the clock source line secondary command on the controller that has the next best known clocking. With this configuration, the primary line clocking is backed up to the secondary line if the primary clocking shuts down.
The following example configures the Cisco AS5200 to use the E1 controller 0 as the primary clocking source and the E1 controller 1 as the secondary clocking source:
controller e1 0 framing esf linecode hdb3 pri-group timeslots 1-23 clock source line primary ! controller e1 1 framing esf linecode hdb3 pri-group timeslots 1-23 clock source line secondary
You can use the master indexes or search online to find documentation of related commands.
framing
linecode
To select the clock source for the time-division multiplexing (TDM) bus in a Cisco AS5200 access server, use the clock source interface configuration command. The no form of this command configures the clock source to its default setting.
clock source {line {primary | secondary} | internal}| line | Clock source on the active line. |
| primary | Primary TDM clock source. |
| secondary | Secondary TDM clock source. |
| internal | Free-running clock (also known as internal clock) as the clock source. |
Primary TDM clock source from the T1 0 controller
Secondary TDM clock source from the T1 1 controller
Interface configuration
To use the clocking coming in from a T1 line, configure the clock source line primary command on the T1 interface that has the most reliable clocking. Configure the clock source line secondary command on the T1 interface that has the next best known clocking. With this configuration, the primary line clocking is backed up to the secondary line if the primary clocking shuts down.
The following example configures the Cisco AS5200 access server to use T1 controller 0 as the primary clock source and T1 controller 1 as the secondary clock source:
controller t1 0 clock source line primary controller t1 1 clock source line secondary
To configure a T1 or E1 controller and enter controller configuration mode, use the controller global configuration command.
controller {t1 | e1} slot/port (on the Cisco 7200 and Cisco 7500 series)| t1 | T1 controller. |
| e1 | E1 controller. |
| slot/port | Backplane slot number and port number on the interface. See your hardware installation manual for the specific values and slot numbers. |
| number | Network processor module (NPM) number, in the range 0 through 2. |
No T1 or E1 controller is configured.
Global configuration
This command first appeared in Release 10.0; the e1 keyword was added in Release 10.3
This command is used in configurations where the router or access server is intended to communicate with a T1 or E1 fractional data line. Additional parameters for the T1 or E1 line must be configured for the controller before the T1 or E1 circuits can be configured by means of the interface global configuration command.
This command is used on a Cisco 7500 series or Cisco 4000 series router.
This command does not apply to the Cisco 7200 series.
In the following example, the MIP in slot 4, port 0 of a Cisco 7500 is configured as a T1 controller:
controller t1 4/0
In the following example, NIM 0 of a Cisco 4000 is configured as a T1 controller:
controller t1 0
You can use the master indexes or search online to find documentation of related commands.
channel-group
clear controller lex
clear controller t1
clock source (controller)
framing
linecode
show controllers e1
show controller t1
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 authenticationThis command has no arguments or keywords.
Disabled
Interface configuration
This command first appeared in Release 11.2.
Use this command for authenticating the device that is calling in to this router.
Use this command to communicate over an ISDN interface with Combinet devices that do not support Point-to-Point Protocol (PPP) but do support the Combinet Proprietary Protocol (CPP).
Currently, most Combinet devices do support PPP. Cisco routers can communicate over ISDN with these devices by using PPP encapsulation, which supports both routing and fast switching.
This command is supported on ISDN and dialer interfaces.
This command uses names and passwords from the username password command. It does not support the Terminal Access Controller Access Control System (TACACS).
The following example configures a Primary Rate Interface to communicate with a Combinet bridge that does not support PPP:
controller t1 1/1 framing esf linecode b8zs pri-group timeslots 1-23 isdn switchtype primary-4ess interface Serial1/1:23 encapsulation cpp cpp callback accept cpp authentication
You can use the master indexes or search online to find documentation of related commands.
cpp callback accept
encapsulation cpp
username password
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 acceptThis command has no arguments or keywords.
Disabled
Interface configuration
Currently, most Combinet devices do support PPP. Cisco routers can communicate over ISDN with these devices by using PPP encapsulation, which supports both routing and fast switching.
This command is supported on ISDN and dialer interfaces.
The following example configures the PRI interface serial1/1:23 to communicate with a Combinet router or bridge that does not support PPP:
controller t1 1/1 framing esf linecode b8zs pri-group timeslots 1-23 isdn switchtype primary-4ess ! interface Serial1/1:23 encapsulation cpp cpp callback accept cpp authentication
You can use the master indexes or search online to find documentation of related commands.
cpp authentication
encapsulation cpp
| string | Comment or a description to help you remember what is attached to the controller. |
No description is added.
Controller configuration
The description command is meant solely as a comment to be put in the configuration to help you remember what certain E1 or T1 controllers are used for. The description affects the MIP interfaces only and appears in the output of the show controllers e1, show controllers t1, and show running-config EXEC commands.
The following example describes a 3174 controller:
controller t1 description 3174 Controller for test lab
You can use the master indexes or search online to find documentation of related commands.
show controllers e1
show controller t1
show running-config
To add a description to an interface configuration, use the description interface configuration command. Use the no form of this command to remove the description.
description string| string | Comment or a description to help you remember what is attached to this interface. |
No description is added.
Interface configuration
The description command is meant solely as a comment to be put in the configuration to help you remember what certain interfaces are used for. The description appears in the output of the following EXEC commands: show startup-config, show interfaces, and show running-config.
The following example shows how to add a description for a T1 interface:
interface serial 0 description Fractional T1 line to Mountain View -- 128 kbps
You can use the master indexes or search online to find documentation of related commands.
show interfaces
show running-config
show startup-config
To configure the dialer map class for an NSF dialing plan to support outgoing calls, use the dialer outgoing map-class dialer configuration command.
dialer outgoing classname| classname | Keyword for a specified AT&T Primary-4ESS NSF dialing plan; the following keywords are supported: sdn, megacomm, and accunet. |
This command is disabled; no classname is provided.
Map-class dialer configuration
This command first appeared in Cisco IOS Release 11.0.
Use this command only to define a dialer map class for an NSF call-by-call service offered by AT&T on Primary-4ESS ISDN switches. This command is not used for other vendors and switch types.
The following partial example shows a class called sdn to support the Software Defined Network (SDN) dialing plan. For a more complete example using all the related commands, see the map-class dialer command.
dialer outgoing sdn
You can use the master indexes or search online to find documentation of related commands.
dialer map class
map-class dialer
dialer voice-call
To configure the dialer map class for an NSF dialing plan to support outgoing voice calls, use the dialer voice-call map-class dialer command.
dialer voice-callThis command has no arguments and keywords.
This command is disabled.
Map-class dialer configuration
This command first appeared in Cisco IOS Release 11.0.
The following partial example defines a dialer map class to support the SDN dialing plan and to support outgoing voice calls. For a more complete example using all the related commands, see the map-class dialer command.
map-class dialer sdnplan dialer voice-call dialer outgoing sdn
You can use the master indexes or search online to find documentation of related commands.
dialer map class
map-class dialer
dialer outgoing
To enable encapsulation for communication with routers or bridges using the Combinet Proprietary Protocol (CPP), use the encapsulation cpp interface configuration command.
encapsulation cppThis command has no arguments or keywords.
Disabled
Interface configuration
Use this command to communicate over an ISDN interface with Combinet devices that do not support PPP but do support CPP.
Currently, most Combinet devices do support PPP. Cisco routers can communicate over ISDN with these devices by using PPP encapsulation, which supports both routing and fast switching.
Combinet devices support only IP, IPX, and bridging. For AppleTalk, Cisco routers automatically perform half-bridging with Combinet devices.
This command is supported on ISDN BRIs and Primary Rate Interfaces (PRIs) only.
The following example configures PRI interface serial 1/1:23 to communicate with a Combinet router or bridge that does not support PPP:
contoller t1 1/1 framing esf linecode b8zs pri-group timeslots 1-23 isdn switchtype primary-4ess ! interface Serial1/1:23 encapsulation cpp cpp callback accept cpp authentication
You can use the master indexes or search online to find documentation of related commands.
cpp authentication
cpp callback accept
Use the framing controller configuration command to select the frame type for the T1 or E1 data line.
framing {sf | esf} (for T1 lines)| sf | Specifies Super Frame as the T1 frame type. |
| esf | Specifies Extended Super Frame as the T1 frame type. |
| crc4 | Specifies CRC4 frame as the E1 frame type. |
| no-crc4 | Specifies no CRC4 frame as the E1 frame type. |
| australia | (Optional) Specifies the E1 frame type used in Australia. |
Super Frame is the default on a T1 line.
CRC4 frame is the default on an E1 line.
Controller configuration
Use this command in configurations where the router or access server is intended to communicate with T1 or E1 fractional data line. The service provider determines which framing type, either sf, esf, or crc4, is required for your T1/E1 circuit.
The following example selects Extended Super Frame as the T1 frame type:
framing esf
You can use the master indexes or search online to find documentation of related commands.
channel-group
linecode
To specify a serial interface created on a channelized E1 or channelized T1 controller (for ISDN PRI, channel-associated signaling, or robbed-bit signaling), use the interface serial global configuration command.
interface serial slot/port:timeslot (on the Cisco 7200 and Cisco 7500 series)None
Global configuration
The D channel is always the :23 channel for T1 and the :15 for E1.
This command first appeared prior to Release 10.0.
The following example configures channel groups on timeslots 1 to 11 and ISDN PRI on timeslots 12 to 24 of T1 controller 0. Then the examples configures the first two channel groups as serial interfaces 0:0 and 0:1.
controller t1 0 channel-group 0 timeslot 1-6 channel-group 1 timeslot 7 channel-group 2 timeslot 8 channel-group 3 timeslot 9-11 pri-group timeslots 12-24 ! interface serial 0:0 ip address 131.108.13.2 255.255.255.0 encapsulation ppp ! interface serial 0:1 ip address 131.108.13.3 255.255.255.0 encapsulation ppp
The following example configures ISDN PRI on T1 controller 4/1 and then configures the D channel on the resulting serial interface 4/1:23:
controller t1 4/1 framing crc4 linecode hdb3 pri-group timeslots 1-24 interface serial 4/1:23 ip address 131.108.13.1 255.255.255.0 encapsulation ppp
You can use the master indexes or search online to find documentation of related commands.
circuit
controller
show interfaces
show interfaces serial bchannel
To have the router verify an additional called-party number or subaddress number in the incoming setup message for ISDN PRI calls, if the number is delivered by the switch, use the isdn answer2 interface configuration command. To remove this second verification request, use the no form of this command.
isdn answer2 [called-party-number][:subaddress]| called-party-number | (Optional) Telephone number of the called party. At least one value--called-party-number or subaddress--must be specified. |
| :subaddress | (Optional) Subaddress number, 20 or fewer characters long, used for ISDN multipoint connections. At least one value--called-party-number or subaddress--must be specified.
Use the colon (:) when you configure both the called party number and the subaddress, or when you configure only the subaddress. |
The router does not verify the called-party or subaddress number.
Interface configuration
If you do not specify the isdn answer1 or isdn answer2 command, all calls are processed and/or accepted. If you specify the isdn answer1 or isdn answer2 command, the router must verify the incoming called-party number and the subaddress before processing and/or accepting the call. The verification proceeds from right to left for the called-party number; it also proceeds from right to left for the subaddress number.
You can configure just the called-party number or just the subaddress. In such a case, only that part is verified. To configure a subaddress only, include the colon (:) before the subaddress number.
You can declare a digit a "don't care" digit by entering it as an x or X. In such a case, any incoming digit is allowed.
In the following partial configuration example, 5552222 is the called-party number and 1234 is the subaddress:
interface serial 4/1:0 isdn answer1 5552222:1234
In the following partial configuration example, only the subaddress is configured:
interface serial 4/1:0 isdn answer1 :1234
To configure ISDN caller ID screening, use the isdn caller interface configuration command. To disable this feature, use the no form of this command.
isdn caller number| number | Telephone number for which to screen. Specify an x or X to represent a single "don't-care" character. The maximum length of each number is 25 characters. |
Disabled
Interface configuration
This command first appeared in Release 11.2 F.
This command configures the router to accept calls from the specified number.
Caller ID screening is available on Cisco 7200 and 7500 series, Cisco 4000 series, Cisco 3000 series, and Cisco 2500 series routers that have one or more BRIs.
The maximum length of each number is 25 characters. You can specify up to 64 numbers per interface.
The following example configures the router to accept a call with a delivered caller ID equal to 4155551234:
isdn caller 4155551234
The following example configures the router to accept a call with a delivered caller ID having 41555512 and any numbers in the last two positions:
isdn caller 41555512xx
You can use the master indexes or search online to find documentation of related commands.
show dialer
| calling-number | Number of the device making the outgoing call; only one entry is allowed and it is limited to 16 digits. |
No calling number is presented.
Interface configuration
This command first appeared in Cisco IOS Release 10.3.
An interface can have only one ISDN calling-number entry.
In the following example, the T1 controller is configured and then the D channel interface is configured to present the billing number 4233570925 when it makes outgoing calls:
controller t1 1/1 framing esf linecode b8zs pri-group timeslots 1-23 isdn switchtype primary-4ess ! interface serial 1/1:23 ip address 7.1.1.1 255.255.255.0 encapsulation ppp isdn calling-number 4233570925 dialer map ip 7.1.1.2 name dallas 14193460913
You can use the index or search online to find documentation of related commands.
To specify the time delay between successive attempts to dial out to a number, use the isdn fast-rollover-delay interface configuration command.
isdn fast-rollover-delay seconds| seconds | Number of seconds to delay before dialing the next dialer map after receiving an ISDN message indicating the current call will not succeed. |
This command is disabled by default. If enabled, the default value of the timer is 0 seconds.
Interface configuration
This command first appeared at Cisco IOS Release 11.1.
This command provides a timer separate from the dialer wait-for-carrier timer to control the amount of time that elapses before calls are redialed. This delay is provided to allow the old call to be torn down completely before the new call is attempted.
When using PPP callback, this command specifies the time delay before the callback is done. This command is necessary on some ISDN switches because the new call may be attempted before the old call is completely torn down. This causes the call back to fail.
Use this command when all the following conditions are true:
If this has occurred, set isdn fast-rollover-delay to 5 seconds and try again.
A delay of 5 seconds should cover most cases. Configure sufficient delay to make sure the ISDN RELEASE_COMPLETE message has been sent or received before making the fast rollover call. Use the debug isdn q931 command to display this information.
The following partial example sets the fast-rollover delay that is suggested when all the conditions specified above are true.
isdn fast-rollover-delay 5
You can use the master indexes or search online to find documentation of related commands.
dialer map
dialer wait-for-carrier
ppp callback
To answer incoming voice calls at a configured rate (overriding the incoming data rate in the call), use the isdn incoming-voice data interface configuration command.
isdn incoming-voice data [56 | 64]| 56 | Answers all voice calls at 56 kbps. |
| 64 | Answers all voice calls at 64 kbps. |
None
Interface configuration
When used without a keyword, this command checks the bearer capacity.
If this command is used, the dialing side must dial at 56 kbps.
Ordinarily, a data device ignores incoming voice calls, but the tariff structure for data and voice calls might make it less expensive to do "data over voice" calls.
The following partial example for channelized T1 configures the D channel (hence, all B channels) to answer all incoming voice calls at 56 kbps:
interface serial 0:23 isdn incoming-voice data 56
For incoming calls, to override the speed that the network reports it will use to deliver the call data, use the isdn not-end-to-end interface configuration command.
isdn not-end-to-end {56 | 64}| 56 | Answers all voice calls at 56 kbps. |
| 64 | Answers all voice calls at 64 kbps. |
The default line speed is 64 kbps.
Interface configuration
This command might be needed to handle incoming calls properly. Although a call might originate at a speed of 56 kbps, the network or internetworking networks might improperly deliver the call to the user at a speed of 64 kbps. This creates a speed mismatch and causes the data to be garbled. Enabling this command makes the router look more closely at the information elements of the incoming call to determine a speed.
In the following example, the line speed for incoming calls is set to 56 kbps:
isdn not-end-to-end 56
To specify that the Sending Complete information element (IE) is included in the outgoing SETUP message, use the isdn sending-complete interface configuration command.
isdn sending-completeThis command has no arguments and keywords.
This command is disabled by default.
Interface configuration
Some switches in some countries want a Sending Complete information element to be included in the outgoing SETUP message to indicate that the entire number is included. The Sending Complete IE is needed for Hong Kong and Taiwan, and the isdn sending-complete command forces it to be sent.
interface serial 0:15 description connected to PBX 61886 ip address 7.1.1.1 255.255.255.0 encapsulation ppp isdn sending-complete dialer idle-timeout 20 dialer map ip 7.1.1.2 name rudder 61884 dialer map ip 7.1.1.3 name goodie 61885 dialer-group 1 ppp authentication chap
To specify the central office switch type on the ISDN interface, use the isdn switch-type global configuration command.
isdn switch-type switch-type| switch-type | Service provider switch type; see Table 37 for a list of supported switches. |
The switch type defaults to none, which disables the switch on the ISDN interface.
Global configuration
To disable the switch on the ISDN interface, specify isdn switch-type none.
Table 37 lists supported PRI switch types by geographic area.
| Keywords by Area | Switch Type |
|---|---|
| none | No switch defined |
| Europe | |
| primary-net5 | European ISDN PRI switches; covers the Euro-ISDN E-DSS1 signaling system and is ETSI-compliant. |
| Japan | |
| primary-ntt | Japanese ISDN PRI switches |
| North America | |
| primary-4ess | AT&T 4ESS switch type for the U.S. |
| primary-5ess | AT&T 5ESS switch type for the U.S. |
| primary-dms100 | NT DMS-100 switch type for the U.S. |
The following example configures the French VN3 ISDN switch type:
isdn switch-type vn3
Use the linecode controller configuration command to select the line-code type for the T1 or E1 line.
linecode {ami | b8zs | hdb3}| ami | Specifies alternate mark inversion (AMI) as the line-code type. Valid for T1 or E1 controllers; the default for T1 lines. |
| b8zs | Specifies B8ZS as the line-code type. Valid for T1 controller only. |
| hdb3 | Specifies high-density bipolar 3 (hdb3) as the line-code type. Valid for E1 controller only; the default for E1 lines. |
AMI is the default for T1 lines.
High-density bipolar 3 is the default for E1 lines.
Controller configuration
Use this command in configurations where the router or access server must communicate with T1 fractional data lines. The T1 service provider determines which line-code type, either ami or b8zs, is required for your T1 circuit. Likewise, the E1 service provider determines which line-code type, either ami or hdb3, is required for your E1 circuit.
The following example specifies B8ZS as the line-code type:
linecode b8zs
To loop an entire E1 line (including all channel-groups defined on the controller) toward the line and back toward the router or access server, use the loopback controller configuration command. To remove the loop, use the no form of this command.
loopbackThis command has no arguments or keywords.
Disabled
Controller configuration
This command first appeared in Cisco IOS Release 11.1.
This command is useful for testing the DCE device (CSU/DSU) itself.
To show interfaces currently in loopback operation, use the show interfaces loopback EXEC command.
The following example configures the loopback test on the E1 line:
controller e1 0 loopback
To loop an entire T1 line (including all channel-groups defined on the controller) toward the line and the router or access server, use the loopback local controller configuration command. To remove the loop, use the no form of this command.
loopback localThis command has no arguments or keywords.
Disabled
Controller configuration
This command first appeared in Cisco IOS Release 11.1.
This command is useful for testing the DCE device (CSU/DSU) itself.
To show interfaces currently in loopback operation, use the show interfaces loopback EXEC command.
The following example configures the loopback test on the T1 line:
controller t1 0 loopback local
To loop a channelized T1 or channelized E1 channel-group, use the loopback local interface configuration command. To remove the loop, use the no form of this command.
loopback localThis command has no arguments or keywords.
Disabled
Interface configuration
This command first appeared in Cisco IOS Release 11.1.
This command is useful for looping a single channel-group in a channelized environment without disrupting the other channel-groups.
To show interfaces currently in loopback operation, use the show interfaces loopback EXEC command.
The following example configures the loopback test on the T1 line:
interface serial 1/0:22 loopback local
You can use the master indexes or search online to find documentation of related commands.
show interfaces loopback
To loop packets from a MIP through the CSU/DSU, over a dedicated T1 link, to the remote CSU at the single destination for this T1 link and back, use the loopback remote controller configuration command. To remove the loop, use the no form of this command.
loopback remoteThis command has no arguments or keywords.
Disabled
Controller configuration
This command first appeared in Cisco IOS Release 11.1.
This command applies only when the device supports the remote function. It is used for testing the data communication channels.
For MIP cards, this controller configuration command applies if only one destination exists at the remote end of the cloud, the entire T1 line is dedicated to it, and the device at the remote end is a CSU (not a CSU/DSU). This is an uncommon case; MIPs are not usually used in this way.
To show interfaces currently in loopback operation, use the show interfaces loopback EXEC command.
The following example configures a remote loopback test:
interface serial 0 loopback remote
You can use the master indexes or search online to find documentation of related commands.
show interfaces loopback
To loop packets through a CSU/DSU, over a DS-3 link or a channelized T1 link, to the remote CSU/DSU and back, use the loopback remote interface configuration command. To remove the loop, use the no form of this command.
loopback remoteThis command is disabled.
Interface configuration
This command first appeared in Cisco IOS Release 11.1.
This command applies only when the remote CSU/DSU device supports the function. It is used for testing the data communication channels. The loopback usually is performed at the line port, rather than the DTE port, of the remote CSU/DSU.
For a multiport interface processor (MIP) connected to a network via a channelized T1 link, the loopback remote interface configuration command applies if the remote interface is served by a DDS line (56 kbps or 64 kbps) and the device at the remote end is a CSU/DSU. In addition, the CSU/DSU at the remote end must react to latched DDS CSU loopback codes. Destinations that are served by other types of lines or that have CSU/DSUs that do not react to latched DDS CSU codes cannot participate in an interface remote loopback. Latched DDS CSU loopback code requirements are described in AT&T specification TR-TSY-000476, "OTGR Network Maintenance Access and Testing."
To show interfaces currently in loopback operation, use the show interfaces loopback EXEC command.
The following example configures a remote loopback test:
interface serial 0 loopback remote
show interfaces loopback
To define a class of shared configuration parameters for outgoing calls from an ISDN interface, use the map-class dialer global configuration command.
map-class dialer classname| classname | Unique class identifier. |
Disabled; no class name is provided.
Global configuration
This command first appeared in Cisco IOS Release 11.0.
The classname in the map-class dialer command used to specify the class must be the same as a classname used in a dialer map command.
This command is used to define classes of calls for PPP callback for DDR, for ISDN Advice of Charge, and for NSF call-by-call dialing plans.
For NSF call-by-call support on ISDN Primary-4ESS switches only, use one of the dialing-plan keywords listed in Table 38.
| Keyword | NSF Dialing Plan | Data | Voice | International |
|---|---|---|---|---|
| sdnplan | SDN | Yes | Yes | GSDN (Global SDN) |
| megaplan | MEGACOMM | No | Yes | Yes |
| accuplan | ACCUNET | Yes | Yes | Yes |
The following example configures the PPP callback server on an ISDN BRI interface on a router in Atlanta. The callback server requires an enable timeout and a map class to be defined.
interface BRI0 ip address 7.1.1.7 255.255.255.0 encapsulation ppp dialer callback-secure dialer enable-timeout 2 dialer map ip 7.1.1.8 name atlanta class dial1 81012345678901 dialer-group 1 ppp callback accept ppp authentication chap ! map-class dialer dial1 dialer callback-server username
In the following example, the ISDN switch type is set to Primary-4ESS, ISDN PRI is configured on T1 controller 1/0, and the D channel is configured for dialer map classes that reference the NSF dialing plans. Finally, the map-class dialer command uses a dialing plan keyword and the dialer outgoing command refers to the same plan.
isdn switch-type primary-4ess ! ! controller T1 1/0 framing esf linecode b8zs pri-group timeslots 1-24 ! interface Serial1/0:23 description This is the DMS D-channel 415-390-9503 ip address 6.1.1.3 255.255.255.0 encapsulation ppp no keepalive dialer map ip 6.1.1.1 name tommyjohn class sdnplan 14085770715 dialer map ip 6.1.1.2 name angus class megaplan 14085773775 dialer map ip 6.1.1.4 name angus class accuplan 14085773778 dialer-group 1 ppp authentication chap ! map-class dialer sdnplan dialer outgoing sdn ! map-class dialer megaplan dialer voice-call dialer outgoing mega ! map-class dialer accuplan dialer outgoing accu
You can use the master indexes or search online to find documentation of related commands.
dialer map class
map-class dialer
dialer outgoing
To specify ISDN Primary Rate Interface (PRI) on a channelized T1 or channelized E1 controller, use the pri-group controller configuration command. Use the no form of this command to remove the ISDN PRI configuration.
pri-group [timeslots range]| timeslots range | (Optional) Specifies a single range of values from 1 to 23 for channelized T1 and from 1 to 31 for channelized E1. |
This command is disabled.
Controller configuration
Before you enter the pri-group command, you must specify an ISDN PRI switch type and an E1 or T1 controller.
The following example configures ISDN PRI on all timeslots of the T1 controller in slot 1 port 0 on a Cisco 7200 series router:
isdn switch-type primary-4ess controllers t1 1/0 framing esf linecode b8zs pri-group timeslots 1-24
The following example configures E1 controller 0 on a Cisco 4000 series router for ISDN PRI on all timeslots:
isdn switch-type primary-net5 controllers e1 0/0 framing esf linecode b8zs pri-group timeslots 1-31
You can use the master indexes or search online to find documentation of related commands.
controllers e1
controllers t1
framing
isdn switch-type
linecode b8zs
Use the show controllers e1 privileged EXEC command to display information about the E1 links supported by the Network Processor Module (NPM) (Cisco 4000) or MultiChannel Interface Processor (MIP) (Cisco 7500 series).
show controllers e1 [slot/port] (on the Cisco 7500 series)| slot/port | Backplane slot number and port number on the interface. See your hardware installation manual for the specific slot and port numbers. |
| number | Network processor module (NPM) number, in the range 0 through 2. |
Privileged EXEC
If you specify a slot and port number, each 15-minute period will be displayed.
This command displays controller status that is specific to the controller hardware. The information displayed is generally useful for diagnostic tasks performed by technical support personnel only.
The following is sample output from the show controllers e1 command on the Cisco 7500 series:
Router# show controllers e1
e1 0/0 is up.
Applique type is Channelized E1 - unbalanced
Framing is CRC4, Line Code is HDB3
No alarms detected.
Data in current interval (725 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 24 hours)
0 Line Code Violations, 0 Path Code Violations,
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Following is an example of the show controllers e1 display including the board identifier type:
Router# show controllers e1
E1 4/1 is up.
No alarms detected.
Framing is CRC4, Line Code is hdb3
Data in current interval (0 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations 0 Slip Secs, 0 Fr Loss Secs,
0 Line Err Secs, 0 Degraded Mins 0 Errored Secs, 0 Bursty Err Secs,
0 Severely Err Secs, 0 Unavail Secs
Total Data (last 79 15 minute intervals):
0 Line Code Violations, 0 Path Code Violations, 0 Slip Secs, 0 Fr Loss Secs,
0 Line Err Secs, 0 Degraded Mins, 0 Errored Secs, 0 Bursty Err Secs,
0 Severely Err Secs, 0 Unavail Secs
Table 39 describes the show controllers e1 display fields.
| Field | Description |
|---|---|
| e1 0/0 is up. | The E1 controller 0 in slot 0 is operating. The controller's state can be up, down, or administratively down. Loopback conditions are shown by (Locally Looped) or (Remotely Looped). |
| Applique type | The applique type is shown and will indicate balanced or unbalanced. |
| Framing is | Shows the current framing type. |
| Linecode is | Shows the current linecode type. |
| No alarms detected. | Any alarms detected by the controller are displayed here. Possible alarms are as follows:
|
|
Data in current interval (725 seconds elapsed) | Shows the current accumulation period, which rolls into the 24 hour accumulation every 15 minutes. Accumulation period is from 1 to 900 seconds. The oldest 15-minute period falls off the back of the 24-hour accumulation buffer. |
| Line Code Violations | Indicates the occurrence of either a Bipolar Violation (BPV) or Excessive Zeros (EXZ) error event. |
| Path Code Violations | Indicates a frame synchronization bit error in the D4 and E1-noCRC formats, or a CRC error in the ESF and E1-CRC formats. |
| Slip Secs | Indicates the replication or deletion of the payload bits of a DS1 frame. A slip might be performed when there is a difference between the timing of a synchronous receiving terminal and the received signal. |
| Fr Loss Secs | Indicates the number of seconds an Out Of Frame (OOF) error is detected. |
| Line Err Secs | Line Errored Seconds (LES) is a second in which one or more Line Code Violation errors are detected. |
| Degraded Mins | A Degraded Minute is one in which the estimated error rate exceeds 1E-6 but does not exceed 1E-3. |
| Errored Secs | In ESF and E1 CRC links, an Errored Second is a second in which one of the following are detected: one or more Path Code Violations; one or more Out of Frame defects; one or more Controlled Slip events; a detected AIS defect.
For SF and E1 no-CRC links, the presence of Bipolar Violations also triggers an Errored Second. |
| Bursty Err Secs | A second with fewer than 320 and more than 1 Path Coding Violation error, no Severely Errored Frame defects and no detected incoming AIS defects. Controlled slips are not included in this parameter. |
| Severely Err Secs | For ESF signals, a second with one of the following errors: 320 or more Path Code Violation errors; one or more Out of Frame defects; a detected AIS defect.
For E1-CRC signals, a second with one of the following errors: 832 or more Path Code Violation errors; one or more Out of Frame defects. For E1-nonCRC signals, a second with 2048 Line Code Violations or more. For D4 signals, a count of 1-second intervals with Framing Errors, or an Out of Frame defect, or 1544 Line Code Violations. |
| Unavail Secs | A count of the total number of seconds on the interface. |
To display information about the T1 links, use the show controllers t1 privileged EXEC command.
show controllers t1 [slot/port] (Cisco 7500 series)| slot/port | Backplane slot number and port number on the interface. See your hardware installation manual for the specific slot and port numbers. |
| number | Network processor module (NPM) number, in the range 0 through 2. |
EXEC
This command displays controller status that is specific to the controller hardware. The information displayed is generally useful for diagnostic tasks performed by technical support personnel only.
If you specify a slot and port number, each 15 minute period will be displayed.
The following is sample output from the show controller t1 command on the Cisco 7500 series:
Router# show controllers t1
T1 4/1 is up.
No alarms detected.
Framing is ESF, Line Code is AMI, Clock Source is line
Data in current interval (0 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations 0 Slip Secs, 0 Fr Loss Secs,
0 Line Err Secs, 0 Degraded Mins 0 Errored Secs, 0 Bursty Err Secs,
0 Severely Err Secs, 0 Unavail Secs
Total Data (last 79 15 minute intervals):
0 Line Code Violations, 0 Path Code Violations, 0 Slip Secs, 0 Fr Loss Secs,
0 Line Err Secs, 0 Degraded Mins, 0 Errored Secs, 0 Bursty Err Secs,
0 Severely Err Secs, 0 Unavail Secs
Table 40 describes the show controllers t1 display fields.
| Field | Description |
|---|---|
| T1 0/0 is up. | The T1 controller 0 in slot 0 is operating. The controller's state can be up, down, administratively down. Loopback conditions are shown by (Locally Looped) or (Remotely Looped). |
| No alarms detected. | Any alarms detected by the controller are displayed here. Possible alarms are as follows:
Transmitter is sending remote alarm. Transmitter is sending AIS. Receiver has loss of signal. Receiver is getting AIS. Receiver has loss of frame. Receiver has remote alarm. Receiver has no alarms. |
| Data in current interval (725 seconds elapsed) | Shows the current accumulation period, which rolls into the 24-hour accumulation every 15 minutes. Accumulation period is from 1 to 900 seconds. The oldest 15 minute period falls off the back of the 24-hour accumulation buffer. |
| Line Code Violations | Indicates the occurrence of either a Bipolar Violation (BPV) or Excessive Zeros (EXZ) error event. |
| Path Code Violations | Indicates a frame synchronization bit error in the D4 and E1-noCRC formats, or a CRC error in the ESF and E1-CRC formats. |
| Slip Secs | Indicates the replication or deletion of the payload bits of a DS1 frame. A slip may be performed when there is a difference between the timing of a synchronous receiving terminal and the received signal. |
| Fr Loss Secs | Indicates the number of seconds an Out Of Frame (OOF) error is detected. |
| Line Err Secs | Line Errored Seconds (LES) is a second in which one or more Line Code Violation errors are detected. |
| Degraded Mins | A Degraded Minute is one in which the estimated error rate exceeds 1E-6 but does not exceed 1E-3. |
| Errored Secs | In ESF and E1-CRC links, an Errored Second is a second in which one of the following are detected: one or more Path Code Violations; one or more Out of Frame defects; one or more Controlled Slip events; a detected AIS defect.
For D4 and E1-noCRC links, the presence of Bipolar Violations also triggers an Errored Second. |
| Bursty Err Secs | A second with fewer than 320 and more than 1 Path Coding Violation error, no Severely Errored Frame defects and no detected incoming AIS defects. Controlled slips are not included in this parameter. |
| Severely Err Secs | For ESF signals, a second with one of the following errors: 320 or more Path Code Violation errors; one or more Out of Frame defects; a detected AIS defect.
For E1-CRC signals, a second with one of the following errors: 832 or more Path Code Violation errors; one or more Out of Frame defects. For E1-noCRC signals, a second with 2048 Line Code Violations or more. For D4 signals, a count of 1-second intervals with Framing Errors, or an Out of Frame defect, or 1544 Line Code Violations. |
| Unavail Secs | A count of the total number of seconds on the interface. |
To display information about the physical attributes of the ISDN PRI over channelized E1 or channelized T1 B and D channels, use the show interfaces serial bchannel EXEC command.
show interfaces serial slot/port bchannel channel-number| slot/port | Backplane slot number and port number on the interface. See your hardware installation manual for the specific slot and port numbers. |
| number | Network processor module (NPM) number, in the range 0 through 2. |
| channel-number | E1 Channel number in the range 1 to 31 or T1 channel number in the range 1 to 23. |
EXEC
This command first appeared in Cisco IOS Release 11.2 F.
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 | serial 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 | serial number] | Displays the status of all ISDN interfaces or, optionally, a specific digital signal link (DSL) or a specific ISDN PRI interface (created and configured as a serial interface). Values of dsl range 0 to 15. |
| timers | Displays the values of Layer 2 and Layer 3 timers. |
Global configuration
This command first appeared in Cisco IOS Release 11.1.
The following is sample output from the show isdn active command:
Router# show isdn active
-------------------------------------------------------------------------------
ISDN ACTIVE CALLS
-------------------------------------------------------------------------------
History Table MaxLength = 320 entries
History Retain Timer = 15 Minutes
-------------------------------------------------------------------------------
Call Calling Called Duration Remote Time until Recorded Charges
Type Number Number Seconds Name Disconnect Units/Currency
-------------------------------------------------------------------------------
Out 9876543222 Active(10) idacom 11 u(E)
Out 9876543210 Active(34) idacom 115 5 u(D)
-------------------------------------------------------------------------------
The following is sample output from the show isdn history command:
Router# show isdn history
-------------------------------------------------------------------------------
ISDN CALL HISTORY
-------------------------------------------------------------------------------
History Table MaxLength = 320 entries
History Retain Timer = 15 Minutes
-------------------------------------------------------------------------------
Call Calling Called Duration Remote Time until Recorded Charges
Type Number Number Seconds Name Disconnect Units/Currency
-------------------------------------------------------------------------------
Out 47887654 240 blackcanary 5 u(D)
In 67893 90 delorean
Out 56745678 Active(90) blackcanary 240 13 u(D)
-------------------------------------------------------------------------------
Table 41 describes the fields in the show isdn active and show isdn history output displays.
Router# show isdn service
PRI Channel Statistics:
ISDN Se1/0:23, Channel (1-31)
Activated dsl 0
State (0=Idle 1=Propose 2=Busy 3=Reserved 4=Restart 5=Maint)
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 3 3 3 3 3 3 3
Channel (1-31) Service (0=Inservice 1=Maint 2=Outofservice)
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0
Table 42 describes the fields in the sample output of the show isdn service command.
| Field | Description |
|---|---|
| ISDN Se1/0:23 | ISDN PRI interface corresponding to serial interface 1/0:23. |
| Channel (1-31) | Channel range "1-31" is a standard format for both T1 and E1 outputs, but the state value shown identifies whether the channel is used. |
| Activated dsl 0 | The digital signal link (DSL) value is 0. |
| State (0=Idle 1=Propose 2=Busy 3=Reserved 4=Restart 5=Maint) | Current state of each channel. Channels 24 through 31 are marked as reserved when the output is from T1. |
| Channel (1-31) Service (0=Inservice 1=Maint 2=Outofservice) | Service state assigned to each channel. Channel 24 is marked as out of service.1 |
Router# show isdn status
The current ISDN Switchtype = primary-5ess
ISDN Serial1/0:23 interface
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 0, State = MULTIPLE_FRAME_ESTABLISHED
Layer 3 Status:
0 Active Layer 3 Call(s)
Activated dsl 0 CCBs = 0
Number of active calls = 0
Number of available B-channels = 23
ISDN Serial1/1:23 interface
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 0, State = MULTIPLE_FRAME_ESTABLISHED
Layer 3 Status:
1 Active Layer 3 Call(s)
Activated dsl 1 CCBs = 1
CCB:callid=8001, callref=0, sapi=0, ces=0, B-chan=23
Number of active calls = 1
Number of available B-channels = 22
Total Allocated ISDN CCBs = 1
Table 43 describes significant fields in the output of the show isdn status command.
| Field | Description |
|---|---|
| ISDN Switchtype = primary-5ess | PRI switch type the router is connected to. |
| ISDN Serial1/0:23 interface | Serial slot, port, and timeslot numbers that define the PRI interface location. |
| Layer 1 Status | |
| ACTIVE | Status of ISDN Layer 1. |
| Layer 2 Status | |
| TEI = 65, State = MULTIPLE_FRAME_ESTABLISHED | Status of ISDN Layer 2. Terminal endpoint identifier number and multiframe structure state. |
| Layer 3 Status: | |
| 1 Active Layer 3 Call(s) | Number of active calls. |
| Activated dsl 1 CCBs = | Number of the Digital Signal Link activated. Number of call control blocks in use. |
| CCB:callid=8001, callref=0, sapi=0, ces=1, B-chan=23 | Call control block information about the active call. |
| Number of active calls = | Number of active calls. |
| Number of available B-channels = | Number of B channels that are not being used. |
| Total Allocated ISDN CCBs = | Number of ISDN call control blocks that are allocated. |
|
|