Cisco PVDM2 24DM - Digital Modem Module, PVDM2-12DM, PVDM2-24DM, PVDM2-36DM User Manual

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Cisco PVDM2-12DM, PVDM2-24DM, and PVDM2-36DM Digital Modem Packet Voice Data Modules

First Published: June 19, 2006 Last Updated: July 11, 2008

The Cisco digital modem packet voice data modules (Cisco PVDMs), type 2 (Cisco PVDM2s), are high-density PVDMs containing 12, 24, or 36 digital modems. These modems provide direct digital connection to Integrated Services Digital Network (ISDN) Primary Rate Interface (PRI) channels, to Basic Rate Interface (BRI) channels, and to channel associated signaling (CAS) digital trunk lines. The PVDM2s are installed in Cisco 2800 series and Cisco 3800 series integrated services routers.

Contents

Finding Feature Information in This Module

Your Cisco IOS software release may not support all of the features documented in this module. To reach links to specific feature documentation in this module and to see a list of the releases in which each feature is supported, use the “Feature Information for Digital Modem PVDM2s” section on page 47.

Finding Support Information for Platforms and Cisco IOS Software Images

Use Cisco Feature Navigator to find information about platform support and Cisco IOS and software image support. To access Cisco Feature Navigator, go to <http://www.cisco.com/go/cfn> is not required.

• Prerequisites for Cisco Digital Modem PVDM2s, page 2

• Restrictions for Cisco Digital Modem PVDM2s, page 3

• Information About Cisco Digital Modem PVDM2s, page 4

• How to Configure Digital Modem PVDM2s, page 4

• Configuration Examples for Digital Modem PVDM2s, page 22

• Additional References, page 25

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Cisco PVDM2-12DM, PVDM2-24DM, and PVDM2-36DM Digital Modem Packet Voice Data Modules

Prerequisites for Cisco Digital Modem PVDM2s

• Command Reference, page 26

• Feature Information for Digital Modem PVDM2s, page 47

Prerequisites for Cisco Digital Modem PVDM2s

Supported Platforms

The following Cisco integrated services routers are supported for the digital modem PVDM2s:

• Cisco 2811

• Cisco 2821

• Cisco 2851

• Cisco 3825

• Cisco 3845

Network Interfaces

LAN connections are provided through your router’s Fast Ethernet or Gigabit Ethernet ports.

For information on how to configure the LAN interfaces on your router, see the Configuring Fast

Ethernet and Gigabit Ethernet Interfaces section of Basic Software Configuration Using the Cisco IOS

Command-Line Interface.

WAN connections are provided through Cisco network modules and interface cards. The digital modem PVDM2s are supported with the following:

• Network modules (supported in Cisco IOS Releases 12.4(9)T and later):

–

• Interface cards (supported in Cisco IOS Releases 12.4(11)XW and later):

–

For information on how to install Cisco network modules, see the Cisco Network Module Hardware

Installation Guide.

For information on how to install Cisco interface cards, see the Cisco Interface Card Hardware

Installation Guide.

NM-1CE1T1-PRI

NM-2CE1T1-PRI

HWIC-1CE1T1-PRI

HWIC-2CE1T1-PRI

VIC2-2BRI-NT/TE

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PVDM2 Installation

Install the digital modem PVDM2s in the PVDM chassis slots on your router’s motherboard.

• To install PVDM2s in Cisco 2800 series routers, see Installing and Upgrading Internal Modules in

Cisco 2800 Series Routers.

• To install PVDM2s in Cisco 3800 series routers, see Installing and Upgrading Internal Modules in

Cisco 3800 Series Routers.

Basic Information for Configurations

Make sure that you have the following information:

• Channel-group information and time-slot mapping

• ISDN PRI/BRI configuration parameters

• T1 or E1 information, such as line code and framing type

Restrictions for Cisco Digital Modem PVDM2s

The following restrictions apply to the Cisco digital modem PVDM2s:

• Digital modem PVDM2s can be inserted only into PVDM2 slots on the motherboards of Cisco

routers. Initially, these routers are the Cisco 2800 series and Cisco 3800 series integrated services routers named in the “Supported Platforms” section on page 2.

• Initial bootup time to download CSM V12 firmware to the digital modem PVDM2s may be two to

four minutes due to architectural limitations.

• Digital modem PVDM2s are supported over ISDN BRI in Cisco IOS Releases 12.4(11)XW and later.

• There is no voice support.

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Information About Cisco Digital Modem PVDM2s

This section provides information about digital modem PVDM2s.

• PVDM Line Numbering on Cisco Integrated Services Routers, page 4

• Mixing Digital Modem PVDM2s with Voice PVDMs, page 4

PVDM Line Numbering on Cisco Integrated Services Routers

This section describes the PVDM line numbering scheme for Cisco integrated services routers. Table 1 shows the line numbering scheme for digital modem PVDM2s installed in Cisco 2800 series and 3800 series routers.

Table 1 PVDM Line Numbering on Cisco Integrated Services Routers

Platform PVDM 0 PVDM 1 PVDM 2 PVDM 3

Cisco 2811 322 386 N/A N/A

Cisco 2821, Cisco 2851

Cisco 3825 322 386 450 514

Cisco 3845 450 514 578 642

322 386 450 N/A

Table 1 gives the line number assigned to the first modem in the PVDM. The remaining modems are

assigned successively increasing line numbers. Some examples are:

• A PVDM2-12DM module is installed in the PVDM 0 slot of a Cisco 2811 router. The 12 modems

on the module are assigned line numbers 322 to 333.

• A PVDM2-24DM module is installed in the PVDM 1 slot of a Cisco 3825 router. The 24 modems

on the module are assigned line numbers 386 to 409.

• A PVDM2-36DM module is installed in the PVDM3 slot of a Cisco 3845 router. The 36 modems

on the module are assigned line numbers 642 to 677.

Mixing Digital Modem PVDM2s with Voice PVDMs

There are no restrictions on the mixing of digital modem PVDM2s with Cisco voice PVDMs within the supported platforms.

How to Configure Digital Modem PVDM2s

Complete the following tasks to configure the digital modem PVDM2s.

• Tasks Common to All Configurations, page 5

• Configuration Using NM-xCE1T1-PRI Network Modules, page 15

• Configuration Using HWIC-xCE1T1-PRI, page 19

• Configuration Using VIC2-2BRI-NT/TE, page 20

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Tasks Common to All Configurations

Complete the following tasks for all configurations of digital modem PVDM2s.

• Configuring the Loopback Interface, page 5 (required)

• Configuring the Modem Country Code, page 6 (required)

• Configuring Modem Lines for Dial-In and Dial-Out, page 6 (required)

• Configuring the Default IP Pool Information, page 8 (required)

• Creating Group Asynchronous Interfaces, page 8 (required)

• Configuring the Dialer Interface, page 10 (required)

• Configuring Modem Pooling, page 11 (optional)

• Configuring Modem Recovery, page 12 (optional)

• Loading Modem Firmware, page 13 (optional)

Configuring the Loopback Interface

How to Configure Digital Modem PVDM2s

SUMMARY STEPS

DETAILED STEPS

Command or Action Purpose

Step 1

interface Loopback number

Example:

Router(config)# loopback 0

Step 2

ip address ip-address ip-address mask

Example:

Router(config-if)# ip address 127.0.0.1

255.255.0.0

The loopback 0 interface is the interface that dial-in users access when dialing in to the network. Usually, all dial-in users are assigned to a single IP subnet. This subnet can be identified with the loopback 0 interface, a logical interface whose network number can be borrowed by each asynchronous dial-in interface.

To configure the loopback 0 interface, perform the following tasks, beginning in global configuration mode:

1. interface Loopback number

2. ip address ip-address ip-address mask

Selects the loopback 0 interface.

Assigns an IP address and subnet mask to the loopback 0 interface.

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Configuring the Modem Country Code

To configure the modem country code for a bank of V12 modems, use the modem country v12 command in global configuration mode.

SUMMARY STEPS

1. modem country v12 country

DETAILED STEPS

Command or Action Purpose

Step 1

modem country v12 country

Example:

Router(config)# modem country v12 t1-default

Cisco PVDM2-12DM, PVDM2-24DM, and PVDM2-36DM Digital Modem Packet Voice Data Modules

Configures the modem country code for the bank of V12 modems in your digital modem PVDM2s.

Default for T1 connections is t1-default.

Default for E1 connections is e1-default.

Configuring Modem Lines for Dial-In and Dial-Out

The following tasks configure modem lines for dial-in and dial-out.

• Configuring Modems for Dial-In, page 6 (required)

• Configuring Modems for Dial-Out, page 7 (required)

Configuring Modems for Dial-In

Beginning in global configuration mode, follow these steps to configure modem lines for dial-in.

SUMMARY STEPS

1. line start-range end-range

2. modem inout

3. transport input all

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DETAILED STEPS

Command or Action Purpose

Step 1

line start-range end-range

Selects the modem lines for dial-in and switch to the line configuration mode.

Example:

Router(config)# line 334 345

Step 2

modem inout

Configures the line for both incoming and outgoing calls.

Example:

Router(config-line)# modem inout

Step 3

transport input all

Selects the protocol used to connect to the router. all selects all protocols.

Example:

Router(config-line)# transport input all

How to Configure Digital Modem PVDM2s

Configuring Modems for Dial-Out

To configure the modem lines for dial-out, perform the following tasks, beginning in global configuration mode:

SUMMARY STEPS

1. line start-range end-range

2. rotary number

3. transport input telnet

4. modem inout

DETAILED STEPS

Command or Action Purpose

Step 1

line start-range end-range

Example:

Router(config)# line 322 333

Step 2

rotary number

Selects the modem lines for dial-out and switch to the line configuration mode.

Sets the router to use previously-defined rotary group.

Example:

Router(config-line)# rotary 1

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How to Configure Digital Modem PVDM2s

Command or Action Purpose

Step 3

transport input telnet

Example:

Router(config-line)# transport input telnet

Step 4

modem inout

Example:

Router(config-line)# modem inout

Configuring the Default IP Pool Information

You need to set a range of IP addresses in the default IP pool. These IP addresses are used for dial-in users. To set the range of addresses, perform the following task in global configuration mode:

SUMMARY STEPS

1. ip pool local default low-ip-address [high-ip-address]

2. ip default gateway number

3. ip classless

Configures the router to accept inbound Telnet connections.

Configures the line for both incoming and outgoing calls.

DETAILED STEPS

Command or Action Purpose

Step 1

ip pool local default low-ip-address [high-ip-address]

Example:

Router(config)# ip pool local default

172.16.0.1 172.16.0.36

Step 2

ip default gateway number

Example:

Router(config)# ip default gateway 101

Step 3

ip classless

Example:

Router(config)# ip classless

Creating Group Asynchronous Interfaces

A group asynchronous interface is a parent interface that applies protocol characteristics to specified, associated asynchronous interfaces. After you create a group asynchronous interface, all associated asynchronous interfaces (called members) can be configured through it. Group asynchronous interfaces can speed configuration time and help you maintain interface configuration consistency.

Beginning in global configuration mode, follow these steps to configure a group asynchronous interface.

Sets the range of addresses in the default IP pool to be assigned to inbound callers.

Defines a default gateway (router) when IP routing is disabled.

Forwards packets destined for a subnet of a network that has no network default route.

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SUMMARY STEPS

1. interface group-async number

2. ip unnumbered Loopback number

3. encapsulation ppp

4. dialer in-band

5. async mode interactive | dedicated

6. peer default ip address pool name

7. no cdp enable

8. group-range start-range end-range

DETAILED STEPS

Command or Action Purpose

Step 1

interface group-async number

Creates a group asynchronous interface.

How to Configure Digital Modem PVDM2s

Step 2

Step 3

Step 4

Step 5

Step 6

Example:

Router(config)#interface group-async 1

ip unnumbered Loopback number

Example:

Router(config-if)#ip unnumbered Loopback 0

encapsulation ppp

Example:

Router(config-if)#encapsulation ppp

dialer in-band

Example:

Router(config-if)# dialer in-band

async mode interactive | dedicated

Example:

Router(config-if)#async mode interactive

peer default ip address pool name

Example:

Router(config-if)#peer default ip address pool name

Enables IP processing on the loopback interface without assigning an explicit IP address to the interface.

Sets the Point-to-Point Protocol (PPP) as the encapsulation method used by this interface.

Specifies that dial-on-demand routing (DDR) be supported.

interactive enables SLIP and PPP EXEC commands on this interface. dedicated disables SLIP and PPP EXEC commands, and sets the encapsulation to what is configured for the interface.

Specifies an IP address from the defined IP address pool to be returned to a remote peer connecting to this interface.

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Command or Action Purpose

Step 7

no cdp enable

Example:

Router(config-if)#no cdp enable

Step 8

group-range start-range end-range

Example:

Router(config-if)#group-range 0/322 0/345

Configuring the Dialer Interface

The dialer interface is the parent interface that holds the central protocol characteristics for the dialer-rotary group. To configure the dialer interface, perform the following tasks, beginning in global configuration mode:

SUMMARY STEPS

1. interface Dialer number

2. ip unnumbered Loopback number

3. no ip mroute-cache

Cisco PVDM2-12DM, PVDM2-24DM, and PVDM2-36DM Digital Modem Packet Voice Data Modules

Disables Cisco Discovery Protocol on this interface.

Associates one or more interfaces to the group interface so that all associated interfaces can be configured through the group interface.

DETAILED STEPS

Command or Action Purpose

Step 1

interface Dialer number

Example:

Router(config)# interface dialer 101

Step 2

ip unnumbered Loopback number

Example:

Router(config-if)# ip unnumbered loopback 0

Step 3

no ip mroute-cache

4. encapsulation ppp

5. peer default ip address pool name

6. dialer in-band

7. dialer-group number

8. no fair-queue

9. no cdp enable

Defines a dialer rotary group leader.

Enables IP processing on the loopback interface without assigning an explicit IP address to the interface.

Disables IP multicast fast switching.

Example:

Router(config-if)# no ip mroute cache

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Command or Action Purpose

Step 4

encapsulation ppp

Sets the PPP as the encapsulation method used by this interface.

Example:

Router(config-if)# encapsulation ppp

Step 5

peer default ip address pool name

Specifies an IP address from the defined IP address pool to be returned to a remote peer connecting to this interface.

Example:

Router(config-if)#

Step 6

dialer in-band

Specifies that dial-on-demand routing (DDR) be supported.

Example:

Router(config-if)# dialer in-band

Step 7

dialer-group number

Assigns this interface to the rotary dialer group.

Example:

Router(config-if)# dialer-group 1

Step 8

no fair-queue

Disables fair weighted queuing for this interface.

How to Configure Digital Modem PVDM2s

Example:

Router(config-if)# no fair-queue

Step 9

no cdp enable

Example:

Router(config-if)# no cdp enable

Configuring Modem Pooling

Modems may be pooled so that specific ranges of the available modems are assigned to the various called numbers handled by your system.

Note Any modem not assigned to a defined modem pool is assigned to the default modem pool.

Restrictions

If you are using modem pooling in a CAS configuration, the following restrictions apply:

• There must be at least one modem in the default modem pool for the modem pooling feature to work

for CAS calls. This is because every time a CAS call is made, a modem in the default pool is used to collect the digits of the called number. Once the digits are collected, the call is forwarded to the appropriate modem pool. One of the modems in that pool will be allocated for the call, and the modem in the default pool will then be released. If there are no available modems in the default pool, the call will not go through.

• Whenever signaling type e&m-fgb is specified in the ds0-group command, it is necessary to

configure dtmf dnis as part of the signaling type.

Router(config)# ds0-group 1 timeslots 1-24 type e&m-fgb dtmf dnis

Disables Cisco Discovery Protocol on this interface.

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When dtmf dnis is part of the ds0-group command, functions in CSM V12 firmware collect the digits of the called number and match them to the called number in the appropriate modem pool, putting the call through. If dtmf dnis is not part of the ds0-group command, these functions are never activated and no called number match is made, resulting in a default pool modem being used instead of a modem from the correct pool. The call will not go through in such a case.

SUMMARY STEPS

1. modem-pool name

2. pool-range modem1-modemN

3. called-number number max-conn number

DETAILED STEPS

Command or Action Purpose

Step 1

modem-pool name

Cisco PVDM2-12DM, PVDM2-24DM, and PVDM2-36DM Digital Modem Packet Voice Data Modules

Assigns a name to the modem pool.

Example:

Router(config)# modem-pool tito

Step 2

Step 3

pool-range modem1-modemN

Example:

Router(config)# pool-range 386-388

called-number number max-conn number

Example:

Router(config)# called-number 5557528 max-conn 3

Configuring Modem Recovery

The modem recovery feature is present to detect bad modems and mark them, saving the user from the task of doing this manually. If there are spare modems in the platform, this process could prevent callers from getting dead air or busy signals.

The modem recovery feature uses two CLI commands. The modem recovery threshold command sets the number of consecutive failures that a modem must experience before the recovery process is performed. The modem recovery action command defines the action taken on the failed modem. The recovery action will either be “disable”, where the IOS will mark the modem bad, or will be “none”, where nothing will happen to the modem and the threshold counter will be reset.

A modem failure is defined as any time that the CSM assigns a call to a modem, but that modem does not reach steady state. The call would be classed as a “no answer” or as a trainup failure.

Specifies the range of modem numbers assigned to the modem pool.

If the modem pool consists of a single modem, the modem number of that modem is entered by itself, as in pool-range 386, for example.

Specifies a called number assigned to the modem pool. The variable max-conn specifies the maximum number of simultaneous calls that may be connected to the called number.

To configure modem recovery, enter the following commands in global configuration mode.

SUMMARY STEPS

1. modem recovery threshold failed-calls

2. modem recovery action {disable | none}

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DETAILED STEPS

Command or Action Purpose

Step 1

modem recovery threshold failed-calls

Specifies the number of consecutive failure that must occur on a modem before modem recovery action takes place.

The range is 0 to 1000. The default value is 30.

Specifies the action to be taken on a modem when its

Step 2

Example:

Router(config)# modem recovery threshold 10

modem recovery action {disable | none}

modem recovery threshold is reached. disable will cause the IOS to mark the modem as bad and remove it from service. none will reset the threshold counter

Example:

Router(config)# modem action recovery disable

for the modem, but will do nothing else. The modem stays in service.

Example

The following configuration will result in a modem being marked bad by the IOS after 8 consecutive failures.

router(config)# modem recovery threshold 8 router(config)# modem recovery action disable

How to Configure Digital Modem PVDM2s

Loading Modem Firmware

To load a different version of CSM V12 firmware into the digital modem PVDM2s, use the modem firmware command in global configuration mode.

Note It may take two to four minutes for the new version to appear.

SUMMARY STEPS

1. configure terminal

2. modem firmware slot slot-number location ifsfilename

3. exit

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DETAILED STEPS

Command or Action Purpose

Step 1

configure terminal

Example:

Router# configure terminal

Step 2

modem firmware slot slot-number location ifsfilename

Example:

Router(config)# modem firmware slot 0 location flash:V3_08.axf

Step 3

exit

Cisco PVDM2-12DM, PVDM2-24DM, and PVDM2-36DM Digital Modem Packet Voice Data Modules

Enters router configuration mode.

Loads a different version of CSM V12 firmware into the digital modem PVDM2s.

• slot-number specifies the chassis slot that contains the

PVDM modules with CSM V12 digital modems. In ISR routers, slot 0, the router’s motherboard, is the chassis slot for all digital modem PVDM2s.

• ifsfilename specifies the Cisco IOS file system (IFS)

filename of the CSM V12 firmware to be loaded into the modem.

Exits global configuration mode.

Example:

Router(config)# exit

Verification of Firmware Loading

Use the show modem version command to verify that the new firmware version has been downloaded to the modems. In the example shown here, the router has a PVDM2-24DM module with 24 digital modems (channel numbers 386 to 409). Version 3.07 of the firmware is replaced with version 3.08. Version 3.08 is stored in the file flash:V3_08.axf in the router’s flash memory.

Before the download takes place, the show modem version command shows the following:

Router#show modem version Slot 0: PVDM 1: PVDM2-24DM - HW Version 1, FPGA Version 3.2, NiOS(2) 5.0.1 Modem 0/386-0/397: PCI Classid: 0x07800001 Bootrom Rev: 0x00005601 Diag Result: 0x0000007F Firmware: V3.07 Modem 0/398-0/409: PCI Classid: 0x07800001 Bootrom Rev: 0x00005601 Diag Result: 0x0000007F Firmware: V3.07

Router#

Download the firmware as follows:

Router>configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#modem firmware slot 0 location flash:V3_08.axf This command will disconnect any active calls. Proceed with firmware upgrade? [confirm] Modem Slot 0: Started firmware download. Modem 0/386 - 0/409 ... Modem Slot 0: Completed firmware download

Router(config)#exit Router#

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After the download takes place, the show modem version command shows the following:

Router#show modem version Slot 0: PVDM 1: PVDM2-24DM - HW Version 1, FPGA Version 3.2, NiOS(2) 5.0.1 Modem 0/386-0/397: PCI Classid: 0x07800001 Bootrom Rev: 0x00005601 Diag Result: 0x0000007F Firmware: V3.08 Modem 0/398-0/409: PCI Classid: 0x07800001 Bootrom Rev: 0x00005601 Diag Result: 0x0000007F Firmware: V3.08

Router#

Configuration Using NM-xCE1T1-PRI Network Modules

To configure NM-CE1T1 network modules for PRI operation or CAS operation, perform the following procedures.

• Configuring the T1/E1 Network Module, page 15 (required)

• Configuring ISDN Digital Modem Calls (PRI), page 16 (optional)

• Configuring Digital Trunk Calls (CAS), page 18 (optional)

How to Configure Digital Modem PVDM2s

Configuring the T1/E1 Network Module

The first step in configuring a digital modem interface is to configure the channelized T1 or E1 network module. The Cisco NM-1CE1T1-PRI network module has one port; The Cisco NM-2CE1T1-PRI network module has two ports. If the network module installed in your router has two ports, you need to do the following procedure on both ports.

SUMMARY STEPS

1. card type {t1 | e1} slot

2. network-clock-participate slot slot-number

3. network-clock-select priority {t1 | e1} slot/port

4. controller {t1 | e1} slot/port

5. framing {sf | esf | crc4 | no crc4}

6. linecode {ami | b8zs | hdb3}

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DETAILED STEPS

Command or Action Purpose

Step 1

card type {t1 | e1} slot

Example:

Router(config)# card type t1 1

Step 2

network-clock-participate slot slot-number

Example:

Router(config-if)# network-clock-participate slot 1/0

Step 3

network-clock-select priority {t1 | e1} slot/port

Example:

Router(config-if)# network-clock-select 1 t1 1/0

Step 4

controller {t1 | e1} slot/port

Cisco PVDM2-12DM, PVDM2-24DM, and PVDM2-36DM Digital Modem Packet Voice Data Modules

Specifies the network module type in the named slot.

Allows the ports on a specified network module to use the network clock for timing.

Specifies the clocking configuration for the selected port.

Allows configuration of the selected T1 or E1 controller.

Example:

Router(config-if)# controller t1 1/0

Step 5

framing {sf | esf | crc4 | no crc4}

Example:

Router(config-if)# framing esf

Step 6

linecode {ami | b8zs | hdb3}

Example:

Router(config-if)# linecode b8zs

Configuring ISDN Digital Modem Calls (PRI)

Perform the following procedures to complete the configuration of digital modem PVDM2s for ISDN digital data calls.

• Configuring the ISDN Switch Type and PRI Group, page 17 (required)

• Configuring the ISDN D-Channel Serial Interface, page 17 (required)

Specifies frame type for a T1 or E1 connection.

• sf selects super frame type for T1.

• esf selects extended super frame type for T1.

• crc4 selects crc4 frame type for E1.

• no crc4 selects no crc4 frame type for E1.

Selects the linecode type for a T1 or E1 connection.

• ami specifies ami linecode type. Valid for T1 and E1.

Default value for T1.

• b8zs specifies b8zs linecode type. Valid for T1 only.

• hdb3 specifies linecode type hdb3. Default value for

E1.

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Configuring the ISDN Switch Type and PRI Group

Perform the following steps to properly connect with the ISDN central office and to define the group of timeslots used.

SUMMARY STEPS

1. isdn switch-type switch-type

2. pri-group timeslots timeslot-range

DETAILED STEPS

Command or Action Purpose

Step 1

isdn switch-type switch-type

Specifies the central office switch type on the ISDN interface.

See the Cisco IOS Release 12.4 Master Commands List for a complete listing of supported signaling methods.

Specifies an ISDN PRI group on a channelized T1 or E1

Step 2

Example:

Router(config)# isdn switch-type primary-qsig

pri-group timeslots timeslot-range

controller.

timeslot-range specifies the time slots that are included in

Example:

Router(config)# pri-group timeslots 1-24

the PRI group. For T1 ports, time slots range from 1 to 24. For E1 ports, time slots range from 1 to 31.

How to Configure Digital Modem PVDM2s

Configuring the ISDN D-Channel Serial Interface

When you configure ISDN PRI on a channelized E1 or channelized T1 controller, you create a corresponding D-channel serial interface used to carry signaling messages for that PRI group. For E1 modules, channel 15 is the D-channel. For T1 modules, channel 23 is the D-channel. You must configure this signaling interface in order to receive incoming and modem calls.

The PRI network modules and interface cards for your router can have either one or two ports; therefore you might have multiple D-channels to configure.

To configure the ISDN D-channel serial interface for E1 or T1 controllers, perform the following tasks, beginning in global configuration mode:

SUMMARY STEPS

1. interface Serial slot/port:channel

2. no ip address

3. encapsulation ppp

4. isdn incoming-voice modem

5. no fair-queue

6. no cdp enable

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DETAILED STEPS

Command or Action Purpose

Step 1

interface Serial slot/port:channel

Example:

Router(config)# interface Serial 1/0:23

Step 2

no ip address

Example:

Router(config-if)# no ip address

Step 3

encapsulation ppp

Example:

Router(config-if)# encapsulation ppp

Step 4

isdn incoming-voice modem

Cisco PVDM2-12DM, PVDM2-24DM, and PVDM2-36DM Digital Modem Packet Voice Data Modules

Specifies the D-channel of the first PRI line and switch to the interface configuration mode.

• For E1 controllers, channel = 15

• For T1 controllers, channel = 23

Disables IP processing on this interface.

Sets the Point-to-Point Protocol (PPP) as the encapsulation method used by this interface.

Configures all incoming voice calls to go to the modems.

Example:

Router(config-if)# isdn incoming-voice modem

Step 5

no fair-queue

Example:

Router(config-if)# no fair-queue

Step 6

no cdp enable

Example:

Router(config-if)# no cdp enable

Configuring Digital Trunk Calls (CAS)

Perform the following step to complete the configuration of digital modem PVDM2s for CAS digital trunk calls.

SUMMARY STEPS

1. ds0-group group-number timeslots list type type

Disables fair weighted queuing for this interface.

Disables Cisco Discovery Protocol on this interface.

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DETAILED STEPS

Command or Action Purpose

Step 1

ds0-group group-number timeslots list type type

Specifies the DS0 time slots that make up a port.

list specifies the time slots that are included in the DS0 group. For T1 ports, time slots range from 1 to 24. For E1 ports, time slots range from 1 to 31.

Example:

Router(config)# ds0-group 1 timeslots 1-24 type e&m-immediate-start

Refer to Cisco IOS Release 12.4 Master Commands List for a complete listing of supported signaling methods.

Configuration Using HWIC-xCE1T1-PRI

To configure T1/E1HWICs for PRI operation, perform the following tasks:

SUMMARY STEPS

How to Configure Digital Modem PVDM2s

DETAILED STEPS

Command or Action Purpose

Step 1

network-clock-participate [slot slot-number | wic wic-slot]

Example:

Router(config)# network-clock-participate wic 0

Step 2

controller {t1 | e1} slot/subslot/port

1. network-clock-participate [slot slot-number | wic wic-slot]

2. controller {t1 | e1} slot/subslot/port

3. framing {sf | esf}

framing {crc4 | no-crc4}

4. linecode {ami | b8zs}

linecode {ami | hdb3}

5. pri-group timeslot-range

TDM group configuration only. Allows the ports on a specified network module or interface card to use the network clock for timing.

Enters controller configuration mode.

Example:

Router(config)# controller t1 1/0

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Command or Action Purpose

Step 3

framing {sf | esf}

framing {crc4 | no-crc4}

Example:

Router(config-controller)# framing esf

Step 4

linecode {ami | b8zs}

linecode {ami | hdb3}

Example:

Router(config-controller)# linecode b8zs

Step 5

pri-group timeslot-range

Cisco PVDM2-12DM, PVDM2-24DM, and PVDM2-36DM Digital Modem Packet Voice Data Modules

In T1 configurations, specifies super frame (sf) or extended super frame (esf) as the frame type for data lines. Default is esf.

In E1 configurations, specifies cyclic. redundancy check 4 (crc4) or no-crc4 as the frame type for data lines. Default is crc4.

In T1 configurations, specifies alternate mark inversion (AMI) or b8zs as the linecode. Default is b8zs.

In E1 configurations, specifies AMI or high-density bipolar 3 (hdb3) as the linecode. Default is hdb3.

Configures specified timeslots on T1 or E1 interfaces for PRI for transporting ISDN data.

Example:

Router(config-controller)# pri-group timeslots 1-24

Configuration Using VIC2-2BRI-NT/TE

To configure VIC2-2BRI VICs for BRI operation, perform the following steps.

SUMMARY STEPS

1. configure terminal

2. isdn switch-type {basic-net3 | basic-qsig}

3. interface bri <slot/port>

4. no ip address

5. end

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DETAILED STEPS

Command Purpose

Step 1

configure terminal

Enters the global configuration mode.

Example:

router# configure terminal

Step 2

isdn switch-type {basic-net3 | basic-qsig}

Specifies the ISDN switch type.

Example:

router(config)# isdn switch-type basic-net3

Step 3

interface bri <slot/port>

Changes to interface configuration mode for a given port in a designated slot.

Example:

router(config)# interface bri 0/0

Step 4

no ip address

Specifies that there is no IP address for this interface.

How to Configure Digital Modem PVDM2s

Step 5

Example:

router(config-if)# no ip address

end

Example:

router(config-if)# end

Exits configuration mode.

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Configuration Examples for Digital Modem PVDM2s

This section provides the following configuration examples:

• Configuring a T1 Controller for CAS Digital Trunk Calls: Example, page 22

• Configuring a T1 Controller for ISDN Digital Modem Calls: Example, page 23

Configuring a T1 Controller for CAS Digital Trunk Calls: Example

The following example shows the T1 CAS configuration for a PVDM2-36DM module in PVDM slot 0 of a Cisco 2851 router.

version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! card type t1 1 ! no aaa new-model ! resource policy ! network-clock-participate slot 1 network-clock-select 1 T1 1/0 ! modem country v12 t1-default ! ip cef ! no ip domain lookup ! controller T1 1/0 framing esf linecode b8zs ds0-group 1 timeslots 1-24 type e&m-immediate-start ! controller T1 1/1 framing esf linecode b8zs ! interface Loopback0 ip address 10.0.0.1 255.255.255.255 ! interface GigabitEthernet0/0 no ip address duplex auto speed auto ! interface GigabitEthernet0/1 no ip address duplex auto speed auto ! interface Dialer101 ip address 10.101.0.1 255.255.0.0 encapsulation ppp dialer pool 1 dialer idle-timeout 2147483 dialer string 101

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dialer-group 1 no cdp enable no ppp authentication ! interface Group-Async1 no ip address encapsulation ppp load-interval 30 dialer in-band dialer pool-member 1 async mode dedicated no peer default ip address no ppp authentication group-range 0/322 0/357 ! no ip http server ! dialer-list 1 protocol ip permit ! control-plane ! line con 0 exec-timeout 0 0 line aux 0 exec-timeout 0 0 line 0/322 0/357 modem InOut transport input all line vty 0 4 password ***** login ! scheduler allocate 20000 1000 ! end

Configuration Examples for Digital Modem PVDM2s

Configuring a T1 Controller for ISDN Digital Modem Calls: Example

The following example shows the T1 PRI (ISDN) configuration for a PVDM2-36DM module in PVDM slot 0 of a Cisco 2851 router.

version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption card type t1 1 ! no aaa new-model ! resource policy ! network-clock-participate slot 1 network-clock-select 1 T1 1/0 ! modem country v12 t1-default ! ip cef ! no ip domain lookup ! isdn switch-type primary-qsig

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! controller T1 1/0 framing esf linecode b8zs pri-group timeslots 1-24 ! controller T1 1/1 framing esf linecode b8zs ! interface Loopback0 ip address 10.0.0.1 255.255.255.255 ! interface GigabitEthernet0/0 no ip address duplex auto speed auto ! interface GigabitEthernet0/1 no ip address duplex auto speed auto ! interface Serial1/0:23 no ip address encapsulation ppp isdn switch-type primary-qsig isdn incoming-voice modem no cdp enable ! interface Dialer101 ip address 10.101.0.1 255.255.0.0 encapsulation ppp dialer pool 1 dialer idle-timeout 2147483 dialer string 101 dialer-group 1 no cdp enable no ppp authentication ! interface Group-Async1 no ip address encapsulation ppp load-interval 30 dialer in-band dialer pool-member 1 async mode dedicated no peer default ip address no ppp authentication group-range 0/322 0/357 ! no ip http server ! dialer-list 1 protocol ip permit ! control-plane ! line con 0 exec-timeout 0 0 line aux 0 exec-timeout 0 0 line 0/322 0/357 modem InOut transport input all

Cisco PVDM2-12DM, PVDM2-24DM, and PVDM2-36DM Digital Modem Packet Voice Data Modules

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line vty 0 4 password ***** login ! scheduler allocate 20000 1000 ! end

Additional References

The following sections provide references related to digital modem PVDM2s.

Related Topic Document Title

Installation instructions for PVDMs in Cisco 2800 series routers

Installation instructions for PVDMs in Cisco 3800 series routers

Cisco IOS Command Reference Cisco IOS Master Commands List, Release 12.4

Modem Pooling - PRI DNIS and Modem Pooling with a PRI Line

Modem Pooling - CAS DNIS and Modem Pooling Using a CAS T1 Line

Installing and Upgrading Internal Modules in Cisco 2800 Series Routers

Installing and Upgrading Internal Components in Cisco 3800 Series Routers

Additional References

Standards

Standard Title

No new or modified standards are supported by this feature, and support for existing standards has not been modified by this feature.

—

MIBs

MIB MIBs Link

No new or modified MIBs are supported by this feature, and support for existing MIBs has not been modified by this feature.

To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL:

http://www.cisco.com/go/mibs

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Command Reference

RFCs

RFC Title

No new or modified RFCs are supported by this feature, and support for existing RFCs has not been modified by this feature.

—

Technical Assistance

Description Link

The Cisco Technical Support & Documentation website contains thousands of pages of searchable technical content, including links to products, technologies, solutions, technical tips, and tools. Registered Cisco.com users can log in from this page to access even more content.

http://www.cisco.com/techsupport

Command Reference

This section documents new commands only.

New Commands

• debug pvdm2dm

• modem country v12

• show modem configuration (pvdm2)

• show modem log (pvdm2)

• show modem operational-status (pvdm2)

• show modem version (pvdm2)

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debug pvdm2dm

To view contents of packets flowing through PVDMII-xxDM digital modem devices, use the debug pvdm2dm command in privileged EXEC mode. To disable debug activity, use the no form of this

command.

debug pvdm2dm packet <modem | pvdm> <slot>/<port | pvdm slot>

no debug pvdm2dm

debug pvdm2dm

Syntax Description

packet Debugs packets

modem Debugs modem packets

pvdm Debugs PVDM packets

slot Router slot for pvdms/modems

port Modem number

pvdm slot PVDM number

Command Default Disabled

Command Modes Privileged EXEC

Command History

Release Modification

12.4(9)T This command was introduced.

Usage Guidelines To debug the contents of modem packets for a specific modem, use the following command:

• debug pvdm2dm packet modem <slot>/<port>

By removing the specific modem number at the end, one can enable packet debugging for all the modems available on the router:

• debug pvdm2dm packet modem

The following command enables packet debugging for all packets flowing through a particular PVDMII-xxDM device:

• debug pvdm2dm packet pvdm <slot>/<pvdm slot>

The following command enables debugging of packets flowing through any PVDMII-xxDM device:

• debug pvdm2dm packet pvdm

The following command enables debugging of packets flowing through any PVDMII-xxDM device and any PVDMII-xxDM-based modem channel:

• debug pvdm2dm packet

To see what debug flags are set, and to view the contents of debugged packets, use the show debugging command.

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debug pvdm2dm

Examples The following example sets debugging for a specific modem. The following show debugging command

displays the debug flag that is set, and gives a typical printout for one debugged packet:

Router# debug pvdm2dm packet modem 0/322 Router# show debugging PVDM2 DM: Modem 0/322 packet debugging is on Router# May 24 17:35:16.318: pvdm2_dm_tx_dsp_pak_common: bay 0, dsp 0 May 24 17:35:16.318: pvdm2_dm_dump_pak_hex: pak: 43E1F6FC size 8 May 24 17:35:16.318: 00 08 00 00 00 1C 00 00 May 24 17:35:16.322:

The following example sets debugging for all PVDMII-xxDM modems available on the router.

Router# debug pvdm2dm packet Router# show debugging PVDM2 DM: Modem 0/322 packet debugging is on Modem 0/323 packet debugging is on Modem 0/324 packet debugging is on . . . Modem 0/355 packet debugging is on Modem 0/356 packet debugging is on Modem 0/357 packet debugging is on Router#

The following example sets debugging for a particular PVDMII-xxDM device.

Router# debug pvdm2dm packet pvdm 0/0 Router# show debugging PVDM2 DM: PVDM2 0/0 packet debugging is on Router#

The following example sets debugging for all PVDMII-xxDM devices in the router.

Router# debug pvdm2dm packet pvdm Router# show debugging PVDM2 DM: PVDM2 0/0 packet debugging is on PVDM2 0/1 packet debugging is on PVDM2 0/2 packet debugging is on Router#

In all of these examples, the output describing the debugged packets is similar to that of the first example, except that the packet contents will vary.

Related Commands Command Description

show debugging Displays information about the type of debugging enabled for your router.

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modem country v12

To configure the modem country code for a bank of V12 modems, use the modem country v12 command in global configuration mode. To remove a country code from service, use the no form of this command.

modem country v12 country

no modem country v12 country

modem country v12

Syntax Description

country Country name. See Usage Guidelines for a list of the supported country names.

Command Default Command is disabled.

Command Modes Global configuration

Command History

Release Modification

12.4(9)T This command was introduced.

Usage Guidelines The supported codes for the country argument are as follows:

• australia

• austria

• belgium

• china

• cyprus

• czech-republic (Czech/Slovak Republic)

• denmark

• e1-default (Default E1, a-law)

• finland

• france

• germany

• hong-kong

• india

• ireland

• israel

• italy

• japan

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• malaysia

• netherlands

• new-zealand

• norway

• poland

• portugal

• russia

• singapore

• south-africa

• spain

• sweden

• switzerland

• t1-default (Defaults T1, u-law)

• taiwan

• thailand

• turkey

• united-kingdom

• usa

Examples The following example sets the V12 modems for operation in Sweden:

modem country v12 sweden

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show modem configuration (pvdm2)

To display the current modem configuration for digital modems on PVDM2-xxDM devices, use the

show modem configuration command in privileged EXEC mode.

show modem configuration [slot/modem number]

show modem configuration (pvdm2)

Syntax Description

slot/modem number (Optional) Slot and modem number. If this number is not specified, statistics

for all connected modems are displayed. You must type in the forward slash (/).

Command Modes Privileged EXEC

Command History

Release Modification

12.4(11)XW This command was introduced.

Examples The following is sample output from the show modem configuration command for a V12 modem. A

specific modem, 0/322, is designated.

Router# show modem configuration 0/322 Modem (0/322) Configuration Status:

S-Reg Value Meaning

-------|-------|-------------------------------------------- S00 = 0 Auto Answer disabled S01 = 0 Ring Counter is 0 S02 = 43 escape character is 0x2B or '+' S03 = 13 carriage return character is 0xD S04 = 10 line feed character is 0xA S05 = 8 backspace character is 0x8 S06 = 2 pause 2 seconds before blind dialing S07 = 70 wait up to 70 seconds for carrier after dialing S08 = 2 comma adds 2 second dial delay S09 = 6 0.6 second Carrier detect response time S10 = 14 1.4 second delay for hangup after carrier loss S11 = 95 0.095 second DTMF Tone Duration S11 = 50 Escape Prompt Delay (in .02s) S14 = 138 Command echo enabled (E1), Send result codes (Q0), Result codes is verbose (V1), Tone (T), Originate, S16 = 0 Local analog loopback disabled Local digital loopback disabled Remote digital loopback not in progress RDL not requested RDL with self test disabled Local analog loopback with self test disabled S18 = 0 Test Timer = 0x0, test will not terminate if zero S21 = 52 Set by &J0 command but ignored otherwise, CTS always on (&R1), DTR behavior &D2 selected, RLSD (DCD) behavior &C1 selected, DSR behavior &S0 selected Long space disconnect Y0, S22 = 119 Speaker/Results 0x77 not supported S23 = 54 RDL not allowed (&T5), DTE Rate 2400 bps, Assumed DTE parity none, Guard tone none (&G0),

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S24 = 0 0 second Sleep Inactivity Timer S25 = 5 Delay 5 (sec for async; 0.01 sec otherwise) to ignore DTR S26 = 1 Delay 0.01 seconds RTS to CTS Delay S27 = 73 Sync./Async. selection &Q5 Dial up line (&L0), Internal clock (&X0), Bell mode (B1), S28 = 0 39%-61% make/break ratio at 10 pulses per second (&P0) S29 = 70 Flash Dial Modifier Time is 700 ms S30 = 0 No Disconnect Inactivity Timer S31 = 6 Single line connect message controlled by S95, Wn and Vn Auto line speed detection enabled(N1) Error correction progress messages full reporting (W1) S32 = 17 XON character is 0x11 S33 = 19 XOFF character is 0x13 S36 = 7 Attempt MNP connection, if fails, Normal mode S37 = 0 Attempt automode connection S38 = 20 20 seconds Delay Before Forced Hang Up S39 = 3 RTS/CTS (&K3) S40 = 88 Disable extended services(-K0) Break Handling (\Kn) not supported NMP block size 128 chars (\A1) S41 = 139 Compression selection is MNP 5 and V.42 bis Retrain and fallback/fall forward disabled S46 = 138 Execute error correction protocol with compression S48 = 7 V.42 negotiation enabled S82 = 128 Break Handling Options/LAPM Break Control = 0x80 S82 = 21 S91 = 13 -13 dBm Transmit Level in analog modulations S92 = 13 -13 dBm Transmit Level for the fax mode S95 = 0 CONNECT result code indicates DTE speed Not append/ARQ to CONNECT 'rate' in error-correction Disable CARRIER 'rate' result code Disable PROTOCOL 'identifier' result code Disable COMPRESSION 'type' result code S200 = 223 Enable K56Plus S202 = 2 K56Plus protocol follows the setting of ATNn Enables V.90 digital pad compensation Disable Display Tx and Rx HNDSHK states No automatic CX802xx/CX803xx status response K56flex Tx level is -12 dBm V90 Tx level is -12 dBm Disable V.42 selective reject S210 = 13 2400,2800,3000,3200,3429 V.34 asymmetric rates enabled S220 = 11 Duration of Answer Tone is 0xB (in units of 450ms) S221 = 50 500 ms Duration of Billing Delay S222 = 0 S223 = 23 -12 dBm V.90 PCM Transmit Level S224 = 0 Digital detect timer (100ms per unit)

Cisco PVDM2-12DM, PVDM2-24DM, and PVDM2-36DM Digital Modem Packet Voice Data Modules

Table 2 describes the S register fields shown in the display.

Table 2 show modem configuration Field Descriptions for V12 Modems

S Register Field Description

S00 Rings to Auto-Answer 0 to 255. Default is 0.

S01 Ring Counter 0 to 255. Default is 0.

S02 Escape Character Default is 43.

S03 Carriage Return Character Default is 13.

S04 Line Feed Character Default is 10.

S05 Backspace Character Default is 8.

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Table 2 show modem configuration Field Descriptions for V12 Modems (continued)

S Register Field Description

S06 Wait Time Before Blind Dialing 2 to 255 seconds. Default/minimum is 2.

S07 Wait Time for Carrier, Silence,

1 to 255 seconds. Default is 50.

or Dial Tone

S08 Pause Time for Dial Delay 0 to 255 seconds. Default is 2.

S09 Carrier Detect Response Time 1to 255 in 100 ms increments. Default is 6

(0.6 seconds).

S10 Lost Carrier to Hangup Delay 1 to 255 in 100 ms increments. Default is 14

(1.4 seconds).

S11 DTMF Tone Duration Returns OK. Default is 95 (0.095 seconds).

S12 Escape Prompt Delay (EPD) Returns OK. Default is 50 (1.00 seconds).

S14 General Bit Mapped Options

Status

S16 General Bit Mapped Test

Sets/resets command echo, quiet mode, result codes, tone/pulse, originate/answer.

Status of analog and digital loopback tests.

Options Status

S18 Test Timer Length of test before returning to command mode.

0 to 255 seconds. Default is 0.

S21 V24/General Bit Mapped

Status of behavior of CTS, DTR, DCD, and DSR.

Options Status

S22 Speaker/Results Options Status Not supported.

S23 General Bit Mapped Options

Status of RDL, DTE rate, DTE parity, and guard tone.

Status

S24 Sleep Inactivity Timer 0 to 255 seconds. Default is 0 (no sleep).

S25 Delay to DTR 0 to 255 in 10 ms increments (or full seconds for

synchronous modes). Default is 5.

S26 RTS to CTS Delay 0 to 255 in 10 ms increments. Default is 1.

S27 Bit Mapped Options Status Sync/async selection, leased line control, clock select,

CCITT/Bell mode select.

S28 Bit Mapped Options Status Pulse dialing make/break ratio. Default is 39 - 61% at

10 pulses/second.

S29 Flash Dial Modifier Time 0 to 255 in 10 ms increments. Default is 70

(0.7 seconds).

S30 Disconnect Inactivity Timer 0 to 255 in 10 second increments (0 to 2550 seconds).

Default is 0 (disabled).

S31 Bit Mapped Options Status Single line connect message, auto line speed detect,

error correction progress message.

S32 XON Character Default is 0x11.

S33 XOFF Character Default is 0x17.

S36 LAPM Failure Control Indicates activity on a LAPM failure.

S37 Desired Line Connection Speed Default is 0 (automode connection).

S38 Delay Brfore Forced Hangup 0 to 255 seconds. Default is 20.

show modem configuration (pvdm2)

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Table 2 show modem configuration Field Descriptions for V12 Modems (continued)

S Register Field Description

S39 Flow Control Bit Mapped

S40 General Bit Mapped Options

S41 General Bit Mapped Options

S46 Error Correction Protocol Default is 138 (execute protocol with compression).

S48 V42 Negotiation Default is 7 (negotiate).

S82 Break Handling Options LAPM Break Control.

S86 Call Failure Reason Code Default is 21 (clear previous reason value).

S91 PSTN Transmit Attenuation

S92 Fax Transmit Attenuation Level 10 to 15 (-10 to -15 dBm transmit level). Default is 10

S95 Extended Result Codes Indicates overriding of Wn command options.

S200 Disable K56Plus Protocol Default is 223 (enables).

S202 CSM Bit Mapped Control

S210 Symbol Rate Limit V34 symbol rate limit, symmetric or asymmetric.

S220 Duration of Answer Tone Command is in units of 450 ms. Default is 11

S221 Duration of Billing Delay 0 to 255 in 10 ms increments. Default is 50 (500 ms).

S222 General Purpose Register Status of Lucent negotiation with V.8bis.

S223 V.90 PCM Transmit Level

S224 Digital Detect Timer Autodetects incoming call from ISDN V110/V120 or

Cisco PVDM2-12DM, PVDM2-24DM, and PVDM2-36DM Digital Modem Packet Voice Data Modules

Options Sta’tus

Status

Level in Analog Modulations

Adjust

Status of flow control.

MNP extended services, block size, and break handling.

Compression selection, auto retrain, fallback/fall forward.

0 to 20 (0 to -20 dBm transmit level). Default is 10 (-10 dBm).

(-10 dBm).

Controls K56flex/V90 Tx level and automatic CX802xx/CX803xx status response.

(4950 ms).

0 to -16 dBm. Default is 23 (-12 dBm).

analog modem. 0 to 100 in 100 ms increments. Default is 0.

Related Commands

Command Description

show modem log (pvdm2) Displays the modem history event status performed on a

show modem operational-status (pvdm2)

Cisco IOS Release 12.4(9)T, 12.4(11)XW, and 12.4(20)T

manageable modem or group of modems.

Displays the current modem operational status for V12 digital modems on PVDM2-xxDM devices.

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show modem log (pvdm2)

To display the modem history event status performed on a manageable modem on a PVDM2-xxDM device, use the show modem log command in privileged EXEC mode.

show modem log slot/modem number

show modem log (pvdm2)

Syntax Description

slot/modem number (Optional) Slot and modem number. If this number is not specified, statistics

for all connected modems are displayed. (Include the forward slash (/) when entering this variable.)

Command Modes Privileged EXEC

Command History

Release Modification

12.4(11)XW This command was introduced.

Examples The following is sample output from the show modem log command issued on a Cisco PVDMII-xxDM

device with V12 digital modems. A specific modem, 0/323, is designated.

Router# show modem log 0/323 Modem 0/322 V12: Event Log contains 72 Events: 00:15:31.116 CSM: Incoming call from Unknown to 223 00:15:31.116 CSM: event-ISDN_CALL New State-IC_MODEM_RESERVED CSM: status-1 dchan-0/3 bchan-0 00:15:31.068 Cmd: PCMENCODE 00:15:31.068 Cmd: CMDDAT Config Change ATS 5B 0D DF 17 00:15:31.068 CSM: event-ISDN_CONNECTED New State-WAIT_FOR_CARRIER 00:15:31.036 CSM: event-CSM_EVENT_MODEM_SETUP New State-WAIT_FOR_CARRIER 00:15:31.036 Ntf: PCMENCODE 00:15:31.032 Ntf: CMDDAT Config Acknowledge ATS Pass Pass 00:15:31.032 Ntf: CMDREQ 00:15:31.012 Cmd: LINECON 00:15:31.012 Ntf: ANSDET 00:15:14.092 Cmd: CMDDAT Statistic--Data Transfer Information

00:15:14.092 CSM: event-MODEM_CONNECTED New State-CONNECTED_STATE 00:15:14.092 Ntf: CHANCON 00:15:14.088 Ntf: CMDDAT Statistic--Data Transfer Information Error correction 77 LAP-M Data compression 68 V44 Modulation type 206 V.34 receive speed 16 33600 transmit speed 16 33600 error correction frames sent 0 error correction frames rcvd 0 characters transmitted 0 characters received 0 synchronous frames sent 0 synchronous frames rcvd 0 bad synchronous frames rcvd 0

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reject frames sent 0 reject frames rcvd 0 total retransmissions 0

00:15:16.080 Ntf: CMDREQ 00:15:16.076 Ntf: DCERPT 00:15:16.076 Cmd: SETSYNC 00:15:16.072 Ntf: CONFIGACK 00:15:13.844 Cmd: ACCMTX 00:15:13.844 Cmd: ACCMRX 00:15:13.840 Ntf: CONFIGACK 00:15:13.840 Ntf: CONFIGACK 00:15:13.600 Cmd: ACCMTX 00:15:13.600 Cmd: ACCMRX 00:15:13.600 Ntf: CONFIGACK 00:15:13.596 Ntf: CONFIGACK 00:13:24.384 Cmd: CMDDAT Statistic--Data Transfer Information

00:13:24.380 Ntf: CMDDAT Statistic--Data Transfer Information Error correction 77 LAP-M Data compression 68 V44 Modulation type 206 V.34 receive speed 16 33600 transmit speed 16 33600 error correction frames sent 7 error correction frames rcvd 12 characters transmitted 218 characters received 487 synchronous frames sent 7 synchronous frames rcvd 12 bad synchronous frames rcvd 0 reject frames sent 0 reject frames rcvd 0 total retransmissions 0

Cisco PVDM2-12DM, PVDM2-24DM, and PVDM2-36DM Digital Modem Packet Voice Data Modules

00:13:44.996 Ntf: CMDREQ 00:13:44.996 Cmd: CMDDAT Statistic--Call Summary Information

00:13:44.992 Ntf: CMDDAT Statistic--Call Summary Information Disconnect reason 21 Clears previous disconnect reason Retrain/rate renegotiate reason 0 None Connection time (hours) 0 Connection time (minutes) 1 Connection time (seconds) 53 Initial receive speed 16 33600 Initial transmit speed 16 33600 Maximum receive speed 16 33600 Maximum transmit speed 16 33600 Minimum receive speed 16 33600 Minimum transmit speed 16 33600 Max retransmit for one frame 1 Total retransmit during connect 0 Minimum EQM 17 Maximum EQM 24 Negative EQMs 0 Minimum SNR 27 31 dB Maximum SNR 27 31 dB Retrains requested locally 0 Retrains requested remotely 0 Rate renegotiation req locally 0 Rate renegotiation req remotely 0

00:13:47.140 Ntf: CMDREQ

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00:13:45.436 Cmd: CMDDAT Statistic--DSP Information

00:13:45.432 Ntf: CMDDAT Statistic--DSP Information Raw AGC value 94 Last EQM 20 Transmit symbol rate 5 3429 Receive symbol rate 5 3429 Transmit carrier frequency 0 1959 (low) Receive carrier frequency 0 1959 (low) Minimum AGC reading 94 Maximum AGC reading 94 Transmit level 13 Remote req tx level reduction 2 SNR 27 31 dB Transmit non-linear encoding 1 On Receive non-linear encoding 1 On Transmit precoding 1 On Receive precoding 1 On Transmit shaping 16 Receive shaping 16 Trellis mapping 0 16-state Transmit pre-emphasis index 0 Raw round trip delay 424 EQM sum low 0 EQM sum medium 0 EQM sum high 0

show modem log (pvdm2)

00:14:18.796 Ntf: CMDREQ 00:14:17.396 Cmd: CMDDAT Statistic--Digital Impairments

00:14:17.392 Ntf: CMDDAT Statistic--Digital Impairments Ditital pad detected 0 RBS pattern 0 Rate drop due to RBS 255 V.90 minimum distance (high) 0 V.90 minimum distance (low) 0 Raw V.90 digital pad val (high) 255 Raw V.90 digital pad val (low) 255

00:14:17.392 Ntf: CMDREQ 00:14:17.392 Cmd: CMDDAT Statistic--V.8bis(proprietary flex) Information

00:14:17.388 Ntf: CMDDAT Statistic--V.8bis(proprietary flex) Information Negotiation status 74 RLSD on K56flex/K56Plus negotiation failed V.90 negotiation not tried V.90/K56flex negotiation failed Non-standard V.8bis Octet 13 148 K56flex (generic) Non-standard V.8bis Octet 14 129 Conexant Conexant-based Non-standard V.8bis Octet 15 131 K56flex capable, Last byte, Non-standard V.8bis Octet 16 66 flex version 0x2, Not prototype, Server, Not last byte, Non-standard V.8bis Octet 17 0 Not last byte, Conexant data pump revision 0x0 Non-standard V.8bis Octet 18 0 u-law, x-law not forced, Not last byte, Conexant controller revision 0x0

00:14:18.884 Ntf: CMDREQ 00:12:09.636 Cmd: CMDDAT Statistic--Data Transfer Information

00:12:09.632 Ntf: CMDDAT Statistic--Data Transfer Information Error correction 77 LAP-M Data compression 68 V44

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show modem log (pvdm2)

Modulation type 206 V.34 receive speed 16 33600 transmit speed 16 33600 error correction frames sent 7 error correction frames rcvd 12 characters transmitted 218 characters received 487 synchronous frames sent 7 synchronous frames rcvd 12 bad synchronous frames rcvd 0 reject frames sent 0 reject frames rcvd 0 total retransmissions 0

00:12:10.664 Ntf: CMDREQ 00:12:35.372 Cmd: CMDDAT Statistic--Call Summary Information

00:12:35.368 Ntf: CMDDAT Statistic--Call Summary Information Disconnect reason 21 Clears previous disconnect reason Retrain/rate renegotiate reason 0 None Connection time (hours) 0 Connection time (minutes) 4 Connection time (seconds) 5 Initial receive speed 16 33600 Initial transmit speed 16 33600 Maximum receive speed 16 33600 Maximum transmit speed 16 33600 Minimum receive speed 16 33600 Minimum transmit speed 16 33600 Max retransmit for one frame 1 Total retransmit during connect 0 Minimum EQM 17 Maximum EQM 25 Negative EQMs 0 Minimum SNR 27 31 dB Maximum SNR 27 31 dB Retrains requested locally 0 Retrains requested remotely 0 Rate renegotiation req locally 0 Rate renegotiation req remotely 0

Cisco PVDM2-12DM, PVDM2-24DM, and PVDM2-36DM Digital Modem Packet Voice Data Modules

00:12:36.400 Ntf: CMDREQ 00:12:35.596 Cmd: CMDDAT Statistic--DSP Information

00:13:01.796 Ntf: CMDDAT Statistic--DSP Information Raw AGC value 94 Last EQM 19 Transmit symbol rate 5 3429 Receive symbol rate 5 3429 Transmit carrier frequency 0 1959 (low) Receive carrier frequency 0 1959 (low) Minimum AGC reading 94 Maximum AGC reading 94 Transmit level 13 Remote req tx level reduction 2 SNR 27 31 dB Transmit non-linear encoding 1 On Receive non-linear encoding 1 On Transmit precoding 1 On Receive precoding 1 On Transmit shaping 16 Receive shaping 16 Trellis mapping 0 16-state Transmit pre-emphasis index 0

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Raw round trip delay 424 EQM sum low 0 EQM sum medium 0 EQM sum high 0

00:13:02.832 Ntf: CMDREQ 00:13:01.792 Cmd: CMDDAT Statistic--Digital Impairments

00:13:01.788 Ntf: CMDDAT Statistic--Digital Impairments Ditital pad detected 0 RBS pattern 0 Rate drop due to RBS 255 V.90 minimum distance (high) 0 V.90 minimum distance (low) 0 Raw V.90 digital pad val (high) 255 Raw V.90 digital pad val (low) 255

00:13:02.784 Ntf: CMDREQ 00:13:01.748 Cmd: CMDDAT Statistic--V.8bis(proprietary flex) Information

00:13:01.744 Ntf: CMDDAT Statistic--V.8bis(proprietary flex) Information Negotiation status 74 RLSD on K56flex/K56Plus negotiation failed V.90 negotiation not tried V.90/K56flex negotiation failed Non-standard V.8bis Octet 13 148 K56flex (generic) Non-standard V.8bis Octet 14 129 Conexant Conexant-based Non-standard V.8bis Octet 15 131 K56flex capable, Last byte, Non-standard V.8bis Octet 16 66 flex version 0x2, Not prototype, Server, Not last byte, Non-standard V.8bis Octet 17 0 Not last byte, Conexant data pump revision 0x0 Non-standard V.8bis Octet 18 0 u-law, x-law not forced, Not last byte, Conexant controller revision 0x0

show modem log (pvdm2)

00:13:02.776 Ntf: CMDREQ 00:06:19.580 Cmd: CMDDAT Statistic--Data Transfer Information

00:06:21.296 Ntf: CMDDAT Statistic--Data Transfer Information Error correction 77 LAP-M Data compression 68 V44 Modulation type 206 V.34 receive speed 16 33600 transmit speed 16 33600 error correction frames sent 7 error correction frames rcvd 12 characters transmitted 218 characters received 487 synchronous frames sent 7 synchronous frames rcvd 12 bad synchronous frames rcvd 0 reject frames sent 0 reject frames rcvd 0 total retransmissions 0

00:06:21.300 Ntf: CMDREQ 00:06:21.300 Cmd: CMDDAT Statistic--Call Summary Information

00:06:21.296 Ntf: CMDDAT Statistic--Call Summary Information Disconnect reason 21 Clears previous disconnect reason Retrain/rate renegotiate reason 0 None Connection time (hours) 0 Connection time (minutes) 10

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show modem log (pvdm2)

Connection time (seconds) 51 Initial receive speed 16 33600 Initial transmit speed 16 33600 Maximum receive speed 16 33600 Maximum transmit speed 16 33600 Minimum receive speed 16 33600 Minimum transmit speed 16 33600 Max retransmit for one frame 1 Total retransmit during connect 0 Minimum EQM 17 Maximum EQM 25 Negative EQMs 0 Minimum SNR 27 31 dB Maximum SNR 27 31 dB Retrains requested locally 0 Retrains requested remotely 0 Rate renegotiation req locally 0 Rate renegotiation req remotely 0

00:07:22.856 Ntf: CMDREQ 00:07:21.828 Cmd: CMDDAT Statistic--DSP Information

00:07:21.824 Ntf: CMDDAT Statistic--DSP Information Raw AGC value 94 Last EQM 21 Transmit symbol rate 5 3429 Receive symbol rate 5 3429 Transmit carrier frequency 0 1959 (low) Receive carrier frequency 0 1959 (low) Minimum AGC reading 94 Maximum AGC reading 94 Transmit level 13 Remote req tx level reduction 2 SNR 27 31 dB Transmit non-linear encoding 1 On Receive non-linear encoding 1 On Transmit precoding 1 On Receive precoding 1 On Transmit shaping 16 Receive shaping 16 Trellis mapping 0 16-state Transmit pre-emphasis index 0 Raw round trip delay 424 EQM sum low 0 EQM sum medium 0 EQM sum high 0

Cisco PVDM2-12DM, PVDM2-24DM, and PVDM2-36DM Digital Modem Packet Voice Data Modules

00:07:23.216 Ntf: CMDREQ 00:07:22.180 Cmd: CMDDAT Statistic--Digital Impairments

00:07:22.176 Ntf: CMDDAT Statistic--Digital Impairments Ditital pad detected 0 RBS pattern 0 Rate drop due to RBS 255 V.90 minimum distance (high) 0 V.90 minimum distance (low) 0 Raw V.90 digital pad val (high) 255 Raw V.90 digital pad val (low) 255

00:07:22.176 Ntf: CMDREQ 00:07:23.208 Cmd: CMDDAT Statistic--V.8bis(proprietary flex) Information

00:07:24.824 Ntf: CMDDAT Statistic--V.8bis(proprietary flex) Information Negotiation status 74 RLSD on

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K56flex/K56Plus negotiation failed V.90 negotiation not tried V.90/K56flex negotiation failed Non-standard V.8bis Octet 13 148 K56flex (generic) Non-standard V.8bis Octet 14 129 Conexant Conexant-based Non-standard V.8bis Octet 15 131 K56flex capable, Last byte, Non-standard V.8bis Octet 16 66 flex version 0x2, Not prototype, Server, Not last byte, Non-standard V.8bis Octet 17 0 Not last byte, Conexant data pump revision 0x0 Non-standard V.8bis Octet 18 0 u-law, x-law not forced, Not last byte, Conexant controller revision 0x0

00:07:25.856 Ntf: CMDREQ

Router#

Table 3 describes the major fields shown in the display.

Table 3 show modem log Field Descriptions for V12 Modems

Field Description

CSM PVDM2-xxDM internal state machine commands.

Cmd Commands sent from Cisco IOS software to V12 modems.

Ntf Notifications sent from V12 modems to Cisco IOS software.

show modem log (pvdm2)

Related Commands

Command Description

show modem configuration (pvdm2)

show modem operational-status (pvdm2)

Displays the current modem configuration for V12 digital modems on PVDM2-xxDM devices.

Displays the current modem operational status for V12 digital modems on PVDM2-xxDM devices.

show modemcap Displays the values set for the current modem and lists the modems

for which the router has entries.

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show modem operational-status (pvdm2)

To display performance statistics for individual digital modems on PVDM2-xxDM devices, use the

show modem operational-status command in privileged EXEC mode.

show modem operational-status [slot/port]

Syntax Description

slot/modem number (Optional) Location of the slot and modem number. If these numbers are not

specified, statistics for all connected modems are displayed. You must include the slash mark.

Command Modes Privileged EXEC

Command History

Release Modification

12.4(11)XW This command was introduced.

Examples The following example shows details for a V12 digital modem on a PVDMII-xxDM device. A specific

modem, 0/322, is designated.

Router# show modem operational-status 0/322 Modem (0/322) Operational Status:

Error correction 77 LAP-M Data compression 68 V44 Modulation type 206 V.34 receive speed 16 33600 transmit speed 16 33600 error correction frames sent 7 error correction frames rcvd 12 characters transmitted 218 characters received 487 synchronous frames sent 7 synchronous frames rcvd 12 bad synchronous frames rcvd 0 reject frames sent 0 reject frames rcvd 0 total retransmissions 0

Disconnect reason 21 Clears previous disconnect reason Retrain/rate renegotiate reason 0 None Connection time (hours) 0 Connection time (minutes) 19 Connection time (seconds) 15 Initial receive speed 16 33600 Initial transmit speed 16 33600 Maximum receive speed 16 33600 Maximum transmit speed 16 33600 Minimum receive speed 16 33600 Minimum transmit speed 16 33600 Max retransmit for one frame 1 Total retransmit during connect 0

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Minimum EQM 17 Maximum EQM 26 Negative EQMs 0 Minimum SNR 27 31 dB Maximum SNR 27 31 dB Retrains requested locally 0 Retrains requested remotely 0 Rate renegotiation req locally 0 Rate renegotiation req remotely 0

Raw AGC value 94 Last EQM 21 Transmit symbol rate 5 3429 Receive symbol rate 5 3429 Transmit carrier frequency 0 1959 (low) Receive carrier frequency 0 1959 (low) Minimum AGC reading 94 Maximum AGC reading 94 Transmit level 13 Remote req tx level reduction 2 SNR 27 31 dB Transmit non-linear encoding 1 On Receive non-linear encoding 1 On Transmit precoding 1 On Receive precoding 1 On Transmit shaping 16 Receive shaping 16 Trellis mapping 0 16-state Transmit pre-emphasis index 0 Raw round trip delay 424 EQM sum low 0 EQM sum medium 0 EQM sum high 0

show modem operational-status (pvdm2)

Related Commands

Ditital pad detected 0 RBS pattern 0 Rate drop due to RBS 255 V.90 minimum distance (high) 0 V.90 minimum distance (low) 0 Raw V.90 digital pad val (high) 255 Raw V.90 digital pad val (low) 255

Negotiation status 74 RLSD on K56flex/K56Plus negotiation failed V.90 negotiation not tried V.90/K56flex negotiation failed Non-standard V.8bis Octet 13 148 K56flex (generic) Non-standard V.8bis Octet 14 129 Conexant Conexant-based Non-standard V.8bis Octet 15 131 K56flex capable, Last byte, Non-standard V.8bis Octet 16 66 flex version 0x2, Not prototype, Server, Not last byte, Non-standard V.8bis Octet 17 0 Not last byte, Conexant data pump revision 0x0 Non-standard V.8bis Octet 18 0 u-law, x-law not forced, Not last byte, Conexant controller revision 0x0

Router#

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show modem operational-status (pvdm2)

Command Description

show modem configuration (pvdm2)

show modem log (pvdm2) Displays the modem history event status performed on a manageable

Cisco PVDM2-12DM, PVDM2-24DM, and PVDM2-36DM Digital Modem Packet Voice Data Modules

Displays the current modem configuration for digital V12 modems on PVDM2-xxDM devices.

modem or group of modems.

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show modem version (pvdm2)

To display version information about the modem firmware, controller, and boot code, use the show modem version command in Privileged EXEC mode.

show modem version

Syntax Description This command has no arguments or keywords.

Command Modes Privileged EXEC

show modem version (pvdm2)

Command History

Release Modification

12.4(11)XW This command was introduced.

Usage Guidelines This command is useful for verifying the version of modem firmware running on the system before or

after a modem firmware upgrade. If there is a “-/-” in the DSP REV field, you cannot use the spe configuration commands for firmware download on that modem.

Examples The following example displays modem version information about PVDM2-xxDM digital modems. This

example specifically shows information about a Cisco 2821 router with three PVDM2-36DMs, high-density pvdms holding 36 digital modems each.

Router# show modem version Slot 0: PVDM 0: PVDMII-36DM - HW Version 1, FPGA Version 3.3, NiOS(2) 5.0.1 Modem 0/322-0/333: PCI Classid: 0x07800001 Bootrom Rev: 0x00005601 Diag Result: 0x0000007F Firmware: V3_09 Modem 0/334-0/345: PCI Classid: 0x07800001 Bootrom Rev: 0x00005601 Diag Result: 0x0000007F Firmware: V3_09 Modem 0/346-0/357: PCI Classid: 0x07800001 Bootrom Rev: 0x00005601 Diag Result: 0x0000007F Firmware: V3_09

PVDM 1: PVDMII-36DM - HW Version 1, FPGA Version 3.3, NiOS(2) 5.0.1 Modem 0/386-0/397: PCI Classid: 0x07800001 Bootrom Rev: 0x00005601 Diag Result: 0x0000007F Firmware: V3_09 Modem 0/398-0/409: PCI Classid: 0x07800001 Bootrom Rev: 0x00005601 Diag Result: 0x0000007F Firmware: V3_09 Modem 0/410-0/421: PCI Classid: 0x07800001 Bootrom Rev: 0x00005601 Diag Result: 0x0000007F Firmware: V3_09

PVDM 2: PVDMII-36DM - HW Version 1, FPGA Version 3.3, NiOS(2) 5.0.1 Modem 0/450-0/461: PCI Classid: 0x07800001 Bootrom Rev: 0x00005601 Diag Result: 0x0000007F Firmware: V3_09

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show modem version (pvdm2)

Modem 0/462-0/473: PCI Classid: 0x07800001 Bootrom Rev: 0x00005601 Diag Result: 0x0000007F Firmware: V3_09 Modem 0/474-0/485: PCI Classid: 0x07800001 Bootrom Rev: 0x00005601 Diag Result: 0x0000007F Firmware: V3_09

Table 4 describes the significant fields shown in the displays of the show modem version command.

Table 4 show modem version Field Descriptions

Field Description

PVDM PVDM slot number where PVDM2-xxDM is present.

HW Version Hardware revision number of PVDM2-xxDM.

FPGA Version FPGA version loaded in the PVDM2-xxDM.

NiOS The version number of the NiOS core soft processor in

Modem Slot and port number for the specified modem.

PCI Classid PCI class id of the CSM V12 chipset present in PVDM2-xxDM.

Bootrom Rev Bootrom revision number of PVDM2-xxDM.

Diag Result Internal diagnostics result.

Firmware CSM V12 Firmware version

Cisco PVDM2-12DM, PVDM2-24DM, and PVDM2-36DM Digital Modem Packet Voice Data Modules

PVDM2-xxDM.

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Feature Information for Digital Modem PVDM2s

Table 5 lists the release history for this feature.

Not all commands may be available in your Cisco IOS software release. For release information about a specific command, see the command reference documentation.

Use Cisco Feature Navigator to find information about platform support and software image support. Cisco Feature Navigator enables you to determine which Cisco IOS and Catalyst OS software images support a specific software release, feature set, or platform. To access Cisco Feature Navigator, go to

http://www.cisco.com/go/cfn. An account on Cisco.com is not required.

Note Table 5 lists only the Cisco IOS software release that introduced support for a given feature in a given

Cisco IOS software release train. Unless noted otherwise, subsequent releases of that Cisco IOS software release train also support that feature.

Table 5 Feature Information for Digital Modem PVDM2s

Feature Name Releases Feature Information

PVDM2-12DM, PVDM2-24DM, PVDM2-36DM

Digital Modem Support and Modem Resource Pooling

12.4(9)T This feature consists of digital modems in a PVDM2 package. Three models are available with different numbers of modems in the package: 12 modems, 24 modems, and 36 modems.

12.4(11)XW

12.4(20)T

Provides support on certain HWIC and VIC interface cards. Provides modem pooling and modem recovery features.

The following section provides information about HWIC and VIC support:

• Network Interfaces, page 2

The following section provides information about the modem pooling feature:

• Configuring Modem Pooling, page 11

The following section provides information about the modem recovery feature:

• Configuring Modem Recovery, page 12

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Feature Information for Digital Modem PVDM2s

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All other trademarks mentioned in this document or Website are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0711R)

Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and coincidental.

Cisco PVDM2-12DM, PVDM2-24DM, and PVDM2-36DM Digital Modem Packet Voice Data Modules

Cisco IOS Release 12.4(9)T, 12.4(11)XW, and 12.4(20)T