Digital Modem Network Module for the Cisco 3640

Table Of Contents

Digital Modem Network Module for the Cisco 3640

Feature Summary

Benefits

List of Terms

Platforms

Prerequisites

Supported MIBs and RFCs

Configuration Tasks

Configure the E1/T1 Network Module for ISDN PRI

Configure Channelized E1 ISDN PRI

Configure Channelized T1 ISDN PRI

Configure the ISDN D-Channel Serial Interfaces

Configure the ISDN D-Channel Serial Interface for E1 Modules

Configure the ISDN D-Channel Serial Interface for T1 Modules

Configure the Loopback Interface

Configure the LAN Interface

Create the Group Asynchronous Interface

Configure the ISDN Dialer Interface

Configure the Default IP Pool Information

Configure Modem Lines for Dial-In and Dial-Out

Configure the Modem for Dial-In

Configure the Modem for Dial-Out

Configuration Example

Cisco 3640 Central Site Configuration to Support ISDN and Modem Calls

Command Reference

clear modem

clear modem log

isdn incoming-voice

modem bad

modem buffer-size

modem country mica

modem shutdown

show controllers async

show interfaces async

show modem

show modem call-stats

show modem configuration

show modem connect-speeds

show modem csm

show modem group

show modem log

show modem operational-status

show modem summary

show modem version

Digital Modem Network Module for the Cisco 3640

Feature Summary

The Digital Modem Network Module for the Cisco 3640 is a high-density digital network module containing 6, 12, 18, 24, or 30 digital (MICA) modems. These modems provide a direct digital connection to an Integrated Services Digital Network (ISDN) Primary Rate Interface (PRI) channel. This digital modem network module allows the access server to support a mix of both digital data calls (ISDN) and analog modem calls over a single digital network interface.

Depending on the modem license you purchase with your Cisco 3640, the modems on the Digital Modem Network Module are either manageable or not manageable by Cisco IOS software commands. If the license you purchase includes this modem management capability, you can use the modem management commands to gather call and performance statistics at any time, even if there is an active call on the modem.

Benefits

The Digital Modem Network Module for the Cisco 3640 provides the following benefits:

•Enables you, as the Enterprise customer, to support a mix of digital (ISDN) and POTS analog modem calls over a single digital network interface.

•Modem management commands enable you to gather call and performance statistics.

•Supports 56 kbps modem connections via the K56 Flex and V.90 standards when the portware for these standards becomes available.

List of Terms

E1—European digital carrier facility used for transmitting data through the telephone hierarchy. The transmission rate for E1 is 2.048 Mbps.

Integrated Services Digital Network (ISDN)—Communication protocols supported by telephone companies to permit telephone networks to carry voice and traffic.

K56Flex—Proprietary modem standard proposed by Rockwell International allowing full-duplex communications with asymmetrical data rates up to 60 kbps. K56 Flex allows the digital modem to transmit data at up to 60 kbps and receive data at up to V.34+ speeds.

Modem ISDN Channel Aggregation (MICA)—72-pin Telebit modem card capable of handling up to six modem sessions.

Pulse Code Modulation (PCM)—Transmission of analog information in digital form through sampling and then encoding the samples with a fixed number of bits. All analog data sent to and from the digital modem has been encoded via PCM.

Primary Rate Interface (PRI)—Associated with ISDN. For T1, PRI consists of 23 B (bearer) channels and 1 D (data) channel. For E1, PRI consists of 30 B channels and 1 D channel.

T1—North American digital carrier facility used for transmission of data through the telephone hierarchy. The transmission rate for T1 is 1.544 Mbps.

V.34—ITU-T standard that defines how modems should operate at 28.8 kbps.

V.34+—ITU-T standard that defines how modems should operate at speeds up to 33.6 kbps.

V.90—ITU-T modem standard for 56 Kbps connections.

Platforms

This feature is supported on the Cisco 3600 series routers.

Prerequisites

Before you can configure a modem interface, complete the following prerequisite tasks:

•Install a PRI network module and another module (such as Ethernet) to provide connectivity to the LAN. Digital modem network modules do not provide physical network interfaces of their own, but instead handle analog calls passing through the PRI network module. The PRI module is capable of concurrently handling digital ISDN data and remote voice-channel (analog) modem connections. The digital modem module provides a pool of available modems that can be used for both incoming and outgoing calls.

For information on how to correctly install a PRI network module, refer to the 1-Port and 2-Port ISDN-PRI Network Module Configuration Note. For information on how to install an Ethernet module, refer to the 1-Port Ethernet Network Module Configuration Note or the 4-Port Ethernet Network Module Configuration Note. For other modules, refer to the specific configuration notes pertaining to them.

Note   The PRI module must be hardware revision -03; earlier revisions are incompatible with digital modem modules. For more information, refer to the "Software and Hardware Requirements" section in the Digital Modem Network Module Configuration Notes.

•Install the Digital Modem Network Module in a chassis slot. For information on how to correctly install this network module, refer to the "Installing a Digital Modem Network Module in a Chassis Slot" section in the Digital Modem Network Module Configuration Note.

•Complete basic device configuration, including host name, username, protocol, and security configuration. For more information about basic device configuration, refer to the Cisco 3620 Installation and Configuration Guide or the Cisco 3640 Installation and Configuration Guide.

•Make sure that you have the following information:

•ISDN PRI Switch type

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

•Channel-group information and time-slot mapping

Supported MIBs and RFCs

No RFCs are supported by this feature.

This feature supports the following Management Information Bases (MIBs):

•CISCO-MODEM-MGMT-MIB

•CISCO-POP-MGMT-MIB

For descriptions of supported MIBs and how to use MIBs, see Cisco's MIB website on CCO at http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml.

Configuration Tasks

Complete the following tasks to configure the digital modem module interfaces:

•Configure the E1/T1 Network Module for ISDN PRI

•Configure the ISDN D-Channel Serial Interfaces

•Configure the Loopback Interface

•Configure the LAN Interface

•Create the Group Asynchronous Interface

•Configure the ISDN Dialer Interface

•Configure the Default IP Pool Information

•Configure Modem Lines for Dial-In and Dial-Out

These tasks are described in the following sections.

Configure the E1/T1 Network Module for ISDN PRI

The first step in configuring a digital modem interface is to configure ISDN PRI on either a channelized T1 or E1 controller, depending on the ISDN service in your area. The Cisco 3600 series ISDN PRI network modules can have either one or two ports; if the ISDN PRI module installed in your device has two ports, you need to apply the following procedure to both ports.

Configure Channelized E1 ISDN PRI

To configure ISDN PRI on a channelized E1 controller, perform the following tasks, beginning in global configuration mode:

Select a service provider switch type that accommodates PRI. shows a list of supported switch types.

isdn switch-type switch type

Specify a controller type and define its location in the Cisco 3640.

controller e1 slot/unit

Define the framing characteristics as cyclic redundancy check 4 (CRC4).

framing crc4

Define the line code as high-density bipolar 3 (HDB3).

linecode hdb3

Configure ISDN PRI. This command specifies the time slots on the T1 line to be allocated to PRI service.

pri-group [timeslots range]

Note   The values used in this procedure for the framing and linecode commands are examples only. Use the framing type and line encoding specified by your E1 service provider.

Table 1 ISDN PRI Switch Types

Country

ISDN Switch Type

Australia

primary-ts01

Europe

primary-net5

Japan

primary-ntt

North America

primary-4ess
primary-5ess
primary-dms100

For more information about configuring ISDN PRI on a channelized E1 controller, refer to the "Configure ISDN PRI" section of the Cisco IOS Release 11.3 Dial Solutions Configuration Guide.

Configure Channelized T1 ISDN PRI

To configure ISDN PRI on a channelized T1 controller, perform the following tasks, beginning in global configuration mode:

Select a service provider switch type that accommodates PRI. shows a list of supported switch types.

isdn switch-type switch type

Specify a controller type and define its location in the Cisco 3640.

controller t1 slot/unit

Specify the clock source for the selected module.

clock source line

Define the framing characteristics as extended superframe format (ESF).

framing esf

Define the line code as binary 8 zero substitution (B8ZS)

linecode b8zs

Configure ISDN PRI. This command specifies the time slots on the T1 line to be allocated to PRI service.

pri-group [timeslots range]

Note   The values used in this procedure for the framing and linecode commands are examples only. Use the framing type and line encoding specified by your E1 service provider.

For more information about configuring ISDN PRI on a channelized T1 controller, refer to the "Configure ISDN PRI" section of the Cisco IOS Release 11.3 Dial Solutions Configuration Guide.

Note   Any router configured for ISDN support must be connected to the same switch type on all of its ISDN interfaces.

Configure the ISDN D-Channel Serial Interfaces

When you configure ISDN PRI on the 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 serial interfaces, slot/port 0:15 is the D-channel. For T1 modules, serial interface 0:23 is the D-channel. You must configure this signaling interface to receive incoming and modem calls.

As mentioned, the PRI Network Module for the Cisco 3600 series can have either one or two ports. Because of this, you might have multiple D-channels to configure.

Configure the ISDN D-Channel Serial Interface for E1 Modules

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

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

interface Serialslot/port:15

Disable IP processing on this interface.

no ip address

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

encapsulation ppp

Configure all incoming voice calls to go to the modems.

isdn incoming-voice modem

Create a rotary dialer group.

dialer rotary-group number

Assign the D-channel interface(s) to the defined rotary dialer group.

dialer-group number

Disable fair weighted queuing for this interface.

no fair-queue

Disable Cisco Discovery Protocol (CDP) on this interface.

no cdp enable

For more information about configuring E1 ISDN D-channel serial interfaces, refer to the "Configure ISDN PRI" section in the Cisco IOS Release 11.3 Dial Solutions Configuration Guide.

Configure the ISDN D-Channel Serial Interface for T1 Modules

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

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

interface Serialslot/port:23

Disable IP processing on this interface.

no ip address

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

encapsulation ppp

Configure all incoming voice calls to go to the modems.

isdn incoming-voice modem

Create a rotary dialer group.

dialer rotary-group number

Assign the D-channel interface(s) to the defined rotary dialer group.

dialer-group number

Disable fair weighted queuing for this interface.

no fair-queue

Disable CDP on this interface.

no cdp enable

For more information about configuring T1 ISDN D-channel serial interfaces, refer to the "Configure ISDN PRI" section in the Cisco IOS Release 11.3 Dial Solutions Configuration Guide.

Configure the Loopback Interface

The loopback 0 interface is the interface 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:

Select the loopback 0 interface.

interface Loopback number

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

ip address ip-address ip-address mask

Configure the LAN Interface

The next task you need to perform is to configure the LAN interfaces on your Cisco 3600 series router. For the purpose of this procedure, we are showing how to configure an Ethernet interface. If the interface you are configuring is different, refer to the "Configuring LAN Interfaces" chapter in the Cisco IOS Release 11.3 Configuration Fundamentals Configuration Guide or to the configuration notes that came with your module.

To configure an Ethernet interface, perform the following tasks, beginning in global configuration mode:

Select the Ethernet interface.

interface ethernet slot/port

Assign an IP address and subnet mask to the Ethernet interface.

ip address ip-address ip-address mask

Enable this interface

no shutdown

Note   The Ethernet and loopback interfaces should be on different subnets.

Create the Group Asynchronous Interface

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.

To configure a group asynchronous interface, perform the following tasks, beginning in global configuration mode:

Create a group asynchronous interface.

interface group-async number

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

ip unnumbered Loopbacknumber

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

encapsulation ppp

Enable SLIP and PPP EXEC commands on this interface.

async mode interactive

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

peer default ip address pool name

Disable CDP on this interface.

no cdp enable

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

group-range start-range end-range

For more information about group asynchronous interfaces, refer to the "Asynchronous Configuration Task List" section of the Cisco IOS Release 11.3 Dial Solutions Configuration Guide.

Configure the ISDN Dialer Interface

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

Define a dialer rotary group leader.

interface Dialer number

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

ip unnumbered Loopbacknumber

Disable IP multicast fast switching.

no ip mroute-cache

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

encapsulation ppp

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

peer default ip address pool name

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

dialer in-band

Assign this interface to the rotary dialer group.

dialer-group number

Disable fair weighted queuing for this interface.

no fair-queue

Disable CDP on this interface.

no cdp enable

Enable Multilink PPP on this interface.

ppp multilink

Configure the enhanced IGRP routing process.

router eigrp autonomous-system-number

Enable Enhanced IGRP.

network network-number

Disable sending routing updates on this interface.

passive-interface Dialer number

Transmit subprefix routing information across classful network boundaries.

no auto-summary

For more information about configuring ISDN dialer interfaces, refer to the Cisco IOS Release 11.3 Dial Solutions Configuration Guide.

Configure 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:

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

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

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

ip default gateway number

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

ip classless

For more information about defining IP pool information, refer to the Cisco IOS Release 11.3 Network Protocols Configuration Guide, Part 1.

Configure Modem Lines for Dial-In and Dial-Out

The final task in configuring the MICA digital modem network modules is to configure the modem lines for dial-in and dial-out.

Configure the Modem for Dial-In

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

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

line start-range end-range

Set the router to display a login prompt to modem callers.

autoseect during-login

Set the router to shift automatically to PPP mode if it detects an incoming PPP packet.

autoselect ppp

Configure the line for both incoming and outgoing calls.

modem inout

Configure the Modem for Dial-Out

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

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

line start-range end-range

Set the router to use previously-defined rotary group.

rotary number

Configure the router to accept inbound Telnet connections.

transport input telnet

This configuration procedure ensures that a user trying to dial out using Telnet is connected to the first free line in the rotary group.

Configuration Example

Cisco 3640 Central Site Configuration to Support ISDN and Modem Calls

The following configuration allows remote LANs and standalone remote users with modems to dial in to a central site. shows the network topology.

In this example, the remote office places digital calls. The telecommuter places analog calls. The remote office router can be any Cisco router with a BRI interface, such as a Cisco 766, 1604, or 2503. The central office gateway router is a Cisco 3640 (or Cisco AS5300), which supports both PRI and analog connections.

Figure 1 Remote Office and Telecommuter Dialing In to a Central Site

The Cisco 3640 has the following hardware configuration for this scenario:

• One 2-port ISDN-PRI network module installed in slot 1

• One digital modem network module installed in slot 2 and slot 3

• One 1-port Ethernet network module installed in slot 0

Note   Each MICA digital modem card has its own group async configuration. Additionally, a single range of async lines is used for each modem card. For additional interface numbering information, refer to the Digital Modem Network Module Configuration Note.
!
version 11.2
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
no service udp-small-servers
no service tcp-small-servers
!
hostname NAS
!
aaa new-model
aaa authentication login default local
aaa authentication login console enable
aaa authentication login vty local
aaa authentication login dialin local
aaa authentication ppp default local
aaa authentication ppp dialin if-needed local
enable secret cisco
!
username admin password cisco
username remotelan1 password dialpass1
username remotelan2 password dialpass2
username PCuser1 password dialpass3
username PCuser2 password dialpass4
async-bootp dns-server 10.1.3.1 10.1.3.2
isdn switch-type primary-5ess
!
controller T1 1/0
 framing esf
 clock source line 
 linecode b8zs
 pri-group timeslots 1-24
!
controller T1 1/1
 framing esf
 clock source line 
 linecode b8zs
 pri-group timeslots 1-24
!
interface Loopback0
 ip address 10.1.2.254 255.255.255.0
!
interface Ethernet0/0
 ip address 10.1.1.10 255.255.255.0
 ip summary address eigrp 10 10.1.2.0 255.255.255.0
!
interface Serial 1/0:23
 no ip address
 encapsulation ppp
 no keepalive
 isdn incoming-voice modem
 dialer rotary-group 0
 dialer-group 1
 no fair-queue
 no cdp enable
!
interface Serial 1/1:23
 no ip address
 encapsulation ppp
 no keepalive
 isdn incoming-voice modem
 dialer rotary-group 0
 dialer-group 1
 no fair-queue
 no cdp enable
!
interface Group-Async1
 ip unnumbered Loopback0
 encapsulation ppp
 async mode interactive
 peer default ip address pool dialin_pool
 no cdp enable
 ppp authentication chap pap dialin
 group-range 65 88
!
interface Group-Async2
 ip unnumbered Loopback0
 encapsulation ppp
 async mode interactive
 peer default ip address pool dialin_pool
 no cdp enable
 ppp authentication chap pap dialin
 group-range 97 120
!
interface Dialer0
 ip unnumbered Loopback0
 no ip mroute-cache
 encapsulation ppp
 peer default ip address pool dialin_pool
 dialer in-band
 dialer-group 1
 no fair-queue
 no cdp enable
 ppp authentication chap pap dialin
 ppp multilink
!
router eigrp 10
 network 10.0.0.0
 passive-interface Dialer0
 no auto-summary
!
ip local pool dialin_pool 10.1.2.1 10.1.2.50
ip default-gateway 10.1.1.1
ip classless
!
dialer-list 1 protocol ip permit
!
line con 0
 login authentication console
line 65 88
 autoselect ppp
 autoselect during-login
 login authentication dialin
 modem DialIn
line 97 120
 autoselect ppp
 autoselect during-login
 login authentication dialin
 modem DialIn
line aux 0
 login authentication console
line vty 0 4
 login authentication vty
 transport input telnet rlogin
!
end
Command Reference

This section provides information about new or modified commands for the Cisco 3640. All other commands used with this device are documented in the Cisco IOS Release 11.3 command references.

•clear modem

•clear modem log

•isdn incoming-voice

•modem bad

•modem buffer-size

•modem country mica

•modem shutdown

•show controllers async

•show interfaces async

•show modem

•show modem call-stats

•show modem configuration

•show modem connect-speeds

•show modem csm

•show modem group

•show modem log

•show modem operational-status

•show modem summary

•show modem version

•show modem group

•show modem operational-status

•show modem summary

clear modem

To reset the specified manageable modems on an access server or router, use the clear modem Privileged EXEC command:

clear modem {slot/port | modem-group | all}

Syntax Description

slot/port

Specifies the slot and port location of the modem. Valid slot entries are from 0 to 3. Valid port entries are from 0 to 29.

modem-group

Specifies the location of a specific group of modems. Valid entries are defined modem groups from 1 to 1002.

all

Resets all manageable modems on the access server.

Default

Disabled

Command Mode

Privileged EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.3(2)T.

Use the clear modem command to rest a specific modem or group of modems on the AS5300. This command will disconnect an active call.

Examples

The following example resets all manageable modems on the Cisco 3640:
clear modem all
Related Commands

clear modem counters
clear modem group
clear modem log

clear modem log

To clear the modem event log for a specified manageable modem, use the clear modem log Privileged EXEC command:

clear modem log [slot/port | modem-group]

Syntax Description

slot/port

Specifies the slot and port location of the modem. Valid slot entries are from 0 to 3. Valid port entries are from 0 to 29.

modem-group

Specifies the location of a specific group of modems. Valid entries are defined modem groups from 1 to 1002.

Default

Disabled

Command Mode

Privileged EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.3(2)T.

The modem event log displays history and status information of the MICA modems installed in the Cisco 3640, including modem state transitions, static link information, and final link information. The clear modem log command clears the event log for a specific modem or group of modems, depending on the optional arguments or keywords you use. If you enter the command with the optional slot/port specified, only the event log for the modem residing in that slot/port will be cleared. If you enter this command with the optional modem-group specified, event logs for all modems associated with that modem group will be cleared. If you enter the clear modem log command without specifying an optional keyword or argument, the event logs for all modems in the access server are cleared.

Examples

The following example clears the event log for the MICA modem located in slot 1/port 1 on the Cisco 3640:
clear modem log 1/1
Related Commands

clear modem
clear modem counters
clear modem group

isdn incoming-voice

To route all incoming voice calls to the modem and treat them as analog data, use the isdn incoming-voice interface configuration command. Use the no form of this command to disable this feature.

isdn incoming-voice {data [56 | 64] | modem [56 | 64]}
no isdn incoming-voice {data [56 | 64] | modem [56 | 64]}

Syntax Description

data

Specifies that incoming voice calls will bypass the modems and be handled as digital data.

modem

Specifies that incoming voice calls will be passed over to the digital modems where they will negotiate the appropriate modem connection with the far end modem.

56

Specifies that the bandwidth for this ISDN B-channel is 56 kilobits per second (kbps).

64

Specifies that the bandwidth for this ISDN B-channel is 64 kbps. If no argument is entered for either the data or modem keywords, the default value is 64.

Default

The default value for this command is isdn incoming-voice data 64.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.3.

Unless you specify otherwise, all calls received by the router characterized as voice calls are treated as normal ISDN calls—meaning that calls are handled as digital data and not passed over to the modem. Use the isdn incoming-voice command with the modem keyword to have voice calls routed through the modem (as PCM data) instead of being treated as data.

The default ISDN B-channel bandwidth for either the modem or data keywords is 64.

Examples

The following example routes all incoming voice calls through the modem as analog data and specifies an ISDN B-channel bandwidth of 64 kbps:
interface Serial3/0:23
 isdn incoming-voice modem
Related Commands

None

modem bad

To remove an integrated modem from service and indicate it as suspected or proven to be inoperable, use the modem bad line configuration command. Use the no form of this command to restore a modem to service.

modem bad
no modem bad

Syntax Description

This command has no keywords or arguments.

Default

Disabled

Command Mode

Line configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2.

If you mark a modem as inoperable, it appears as Bad—without the asterisk (*)—in the Status column of the show modem command output. A modem marked inoperable by the modem startup-test command appears as Bad* in the show modem command output. Use the no modem bad command to unmark a modem as Bad* or Bad and restore it for dial-up connection services.

Note Only idle modems can be marked bad by the modem bad command. If you want to mark a modem bad that is actively supporting a call, first entered the modem shutdown command, then enter the modem bad command.

Example

The first part of the following example shows a successful connection between modem 2/1 and modem 2/0, which verifies normal operating conditions between these two modems. However, when modem 2/1 is tested against modem 2/3, the back-to-back modem test fails. Therefore, modem 2/3 is suspected or proven to be inoperable. Modem 2/3 is removed from dial-up services through the use of the modem bad command on line 28.
router# test modem back-to-back 2/1 2/0
Repetitions (of 10-byte packets) [1]: 10
router#
%MODEM-5-B2BCONNECT: Modems (2/1) and (2/0) connected in back-to-back test: CONN
ECT9600/REL-MNP
%MODEM-5-B2BMODEMS: Modems (2/0) and (2/1) completed back-to-back test: success/
packets = 20/20
router# test modem back-to-back 2/1 2/3
Repetitions (of 10-byte packets) [1]: 10
router#
%MODEM-5-BADMODEMS: Modems (2/3) and (2/1) failed back-to-back test: NOCARRIER
router# configure terminal
router(config)# line 28
router(config-line)# modem bad
router(config-line)# end
Related Commands

You can use the master indexes or search online to find documentation of related commands.

modem startup-test
show modem
test modem back-to-back

modem buffer-size

To configure the size of the history event queue buffer for integrated modems installed in an access server or router, use the modem buffer-size command.

modem buffer-size number

Syntax Description

number

Defined number of modem events that each manageable modem is able to store.

Default

100 modem events

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2.

A large buffer size uses significant amounts of processing memory. If the processing memory is running low, reduce the modem buffer size.

To view modem events, use the show modem log command.

Note This command does not apply to nonmanageable modems, which do not have out-of-band ports.

Example

The following example enables each modem in the access server to store 150 modem events:
modem buffer-size 150
Related Commands

You can use the master indexes or search online to find documentation of related commands.

show modem log

modem country mica

To configure the modem country code for a bank of MICA modems, use the modem country mica global configuration command. Use the no form of this command to remove a country code from service.

modem country mica country
no modem country mica country

Syntax Description

country

Specifies a type of country code. Replace the argument country with one of the following supported country names:

•australia

•austria

•belgium

•china

•cyprus

•czech-republic (Czech/Slovak Republic)

•denmark

•e1-default (Default E1, uses A-law PCM encoding)

•finland

•france

•germany

•hong-kong

•india

•ireland

•israel

•italy

•japan

•malaysia

•netherlands

•new-zealand

•norway

•poland

•portugal

•russia

•singapore

•south-africa

•spain

•sweden

•switzerland

•t1-default (Default T1, uses u-law PCM encoding)

•taiwan

•thailand

•turkey

•united-kingdom

•usa

Default

The default for this command is automatically set by the system, depending on the installed interface. If the platform contains a T1 interface, t1-default is assumed. If the platform contains an E1 interface, e1 default is assumed.

Note The default setting is not added to the running configuration.

Command Mode

Global configuration

Usage Guideline

This command first appeared in Cisco IOS Release 11.2 P.

Example

The following example selects the country code for the United States as the country code for the Cisco 3640 MICA modems:
modem country mica usa
Related Commands

None

modem shutdown

To abruptly shut down an active or idle modem installed in an access server or router, use the modem shutdown line configuration command. Use the no form of this command to take the modem out of a shutdown state and place it back in service.

modem shutdown
no modem shutdown

Syntax Description

This command has no keywords or arguments.

Default

Disabled

Command Mode

Line configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2.

Enable the no modem shutdown command to restore to service a modem that has been shut down.

Example

The following example abruptly shuts down the modem associated with line 2. All active calls on the modem are dropped immediately.
configure terminal
 line 2
  modem shutdown
Related Commands

You can use the master indexes or search online to find documentation of related commands.

modem busyout

show controllers async

To display Universal Asynchronous Receiver/Transmitter (UART) information specific to the Digital Modem Network Module (Cisco 3600 series routers), use the show controllers async Privileged EXEC command.

show controllers async

Syntax Description

This command has no keywords or arguments.

Command Mode

Privileged EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.3(2)T.

The information displayed by this command is generally useful for diagnostic tasks performed by technical support personnel only.

Sample Displays

The following example uses the show controllers async command to display UART information for a Cisco 3640:
router#show controllers async
Hex Modem Module Async Interface 65 on Slot 2/Port 0
IDB 0x60CB2890 Context 0x60CB275C
 Async Mode Raw
 Interface disabled
 Buffer information:
  Rx Int 0x744
  Tx Int 0x73E
  Rx Ring: head 0x0 tail 0x0 in ring 0x2
  Rx Raw Free Pak Queue: head 0x0 tail 0x0 count 0x0
  RxBuf Outstanding 0x0 Disallowed 0x0 PPP public buffers 0x1
  Rx Raw Data Queue: head 0x60CB213C tail 0x60CB213C count 0x0
  Rx TTY ring throttled 0x16F141
  Tx Ring: head 0xE tail 0xE in ring 0x0
  Out Pak 0x0 Particle Pak 0x0 count 0x0
  Tx Raw Pak Queue: head 0x60CB12C8 tail 0x60CB14BC count 0x2
  Tx Busy 0x0 
Related Commands

show interfaces async

show interfaces async

To display information about the asynchronous interfaces, use the show interfaces async Privileged EXEC command.

show interfaces async interface-number

Syntax Description

interface-number

Identifies the asynchronous interface. Valid entries are from 1 to 129.

Command Mode

Privileged EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.3(2)T.

Each digital modem is given a fixed, linear asynchronous identifier. The mapping between modem slot/port and asynchronous interface-number is given by multiplying the slot number by 32, adding the part number and then adding 1.

Sample Displays

The following example uses the show interfaces async command to display information for asynchronous interface 71:
router#show interfaces async 71
Async71 is up, line protocol is up 
modem(slot/port):2/6, csm_state:CONNECTED_STATE, 
bchan_num:4 csm_status: CALL_ACTIVE 
  Hardware is HMM Async Interface
  Interface is unnumbered.  Using address of Loopback0 (171.69.167.81)
  MTU 1500 bytes, BW 115 Kbit, DLY 100000 usec, rely 255/255, load 1/255
  Encapsulation PPP, loopback not set, keepalive not set
  DTR is pulsed for 5 seconds on reset
  LCP Open
  Open: IPCP
  Last input 00:03:22, output 00:07:37, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0 (size/max/drops); Total output drops: 329
  Queueing strategy: weighted fair
  Output queue: 0/1000/329 (size/max total/drops) 
     Conversations  0/4/64 (active/max active/threshold)
     Reserved Conversations 0/0 (allocated/max allocated)
     30 second input rate 0 bits/sec, 0 packets/sec
     30 second output rate 0 bits/sec, 0 packets/sec
     9441 packets input, 681811 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     1 input errors, 1 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     10539 packets output, 3095871 bytes, 0 underruns
     0 output errors, 0 collisions, 4 interface resets
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions
describes the fields in the previous display.

Table 2 Show Interfaces Async Field Description

Field

Description

Async

Identifier and state of the async interface.

line protocol

Describes current state of the line protocol.

modem(slot/port):

Slot/port location of the modem fixed to this async interface.

csm_state:

State of the modem as viewed by CSM (call switching module).

bchan_num:

ISDN B channel used by this interface.

csm_status:

Status of the modem as viewed by CSM.

Hardware

Type of interface.

Interface

Interface number and any associated addressing information.

MTU

Maximum transmission unit for packets on this interface.

BW

Bandwidth of the async interface in kilobits per second.

DLY

Delay of the async interface in microseconds.

rely

Reliability of the async interface as a fraction of 255 (255/255 is 100 percent reliability), calculated as an exponential average over five minutes.

load

Load on the async interface as a fraction of 255 (255/255 is completely saturated), calculated as an exponential average over five minutes.

Encapsulation

Encapsulation method used on this interface.

loopback

Test in which signals are sent and then directed back toward the source at some point along the communication path. Used to test network interface usability.

keepalive

Interval set for keepalive packets on the interface.

DTR

Data Terminal Ready. An RS-232-C circuit that is activated to let the DCE know when the DTE is ready to send and receive data.

LCP open | closed | req sent

Link control protocol (for PPP only). LCP must come to the open state before any useful traffic can cross the link.

Open IPCP | IPXCP | ATCP

IPCP is IP control protocol for PPP, IPXCP is IPX control protocol for PPP, ATCP is AppleTalk control protocol for PPP. Network control protocols (NCPs) for the PPP suite. The NCP is negotiated after the LCP opens. The NCP must come into the open state before useful traffic can cross the link.

Last input

Number of hours, minutes, and seconds since the last packet was successfully received by an async interface. Useful for knowing when a dead interface failed.

output

Number of hours, minutes, and seconds since the last packet was successfully transmitted by an async interface.

output hang

Number of hours, minutes, and seconds (or never) since the async interface was last reset because of a transmission that took too long. When the number of hours in any of the "last" fields exceeds 24 hours, the number of days and hours is printed. If that field overflows, asterisks are printed.

Last clearing

Time at which the counters that measure cumulative statistics (such as number of bytes transmitted and received) shown in this report were last reset to zero. Note that variables that might affect routing (for example, load and reliability) are not cleared when the counters are cleared.

*** indicates the elapsed time is too large to be displayed.
0:00:00 indicates the counters were cleared more than 231ms (and less than 232ms) ago.

Input queue, drops

Number of packets in input queues. Each number is followed by a slash, the maximum size of the queue, and the number of packets dropped due to a full queue.

Queueing strategy

Type of queueing selected to prioritize network traffic. The options are first-come-first-serve (FCFS) queueing, weighted fair queueing, priority queueing, and custom queueing.

Output queue

Number of packets in output queues. Each number is followed by a slash, the maximum size of the queue, and the number of packets dropped due to a full queue.

Conversations

Number of weighted fair queueing conversations.

Reserved Conversations

Number of reserved weighted fair queueing conversations. The example shows the number of allocated conversations divided by the number of maximum allocated conversations. In this case, there have been 0 reserved conversations.

30 second input rate,
30 second output rate

Average number of bits and packets transmitted per second in the last 30 seconds.

packets input

Total number of error-free packets received by the system.

bytes

Total number of bytes, including data and MAC encapsulation, in the error free packets received by the system.

no buffer

Number of received packets discarded because there was no buffer space in the main system. Compare with ignored count. Broadcast storms on Ethernets and bursts of noise on serial lines are often responsible for no input buffer events.

broadcasts

Total number of broadcast or multicast packets received by the async interface.

runts

Number of packets that are discarded because they are smaller than the medium's minimum packet size.

giants

Number of packets that are discarded because they exceed the medium's maximum packet size.

throttles

Number of times the interface has been throttled, indicating that the interface is running out of resources (such as receive buffers) or is generating too many interrupts.

input errors

Total number of no buffer, runts, giants, CRCs, frame, overrun, ignored, and abort counts. Other input-related errors can also increment the count, so that this sum might not balance with the other counts.

CRC

Cyclic redundancy checksum generated by the originating LAN station or far end device does not match the checksum calculated from data received. On a LAN, this often indicates noise or transmission problems on the LAN interface or the LAN bus. A high number of CRCs is usually the result of collisions or a station transmitting bad data. On a serial link, CRCs often indicate noise, gain hits or other transmission problems on the data link.

frame

Number of packets received incorrectly having a CRC error and a non-integer number of octets. On a serial line, this is usually the result of noise or other transmission problems.

overrun

Number of times the serial receiver hardware was unable to hand received data to a hardware buffer because the input rate exceeded the receiver's ability to handle the data.

ignored

Number of received packets ignored by the async interface because the interface hardware ran low on internal buffers. These buffers are different from the system buffers mentioned previously in the buffer description. Broadcast storms and bursts of noise can cause the ignored count to be incremented.

abort

Illegal sequence of one bits on an async interface. This usually indicates a clocking problem between the virtual access interface and the data link equipment.

packets output

Total number of messages transmitted by the system.

bytes

Total number of bytes, including data and MAC encapsulation, transmitted by the system.

underruns

Number of times that the far-end transmitter has been running faster than the near-end communication server's receiver can handle. This might never be reported on some virtual access interfaces.

output errors

Sum of all errors that prevented the final transmission of datagrams out of the async interface being examined. Note that this might not balance with the sum of the enumerated output errors, as some datagrams might have more than one error, and others might have errors that do not fall into any of the tabulated categories.

collisions

Number of packets colliding.

interface resets

Number of times an async interface has been completely reset. This can happen if packets queued for transmission were not sent within several seconds. This can be caused by a malfunctioning modem that is not supplying the transmit clock signal, or by a cable problem. If the system notices that the carrier detect line of an async interface is up, but the line protocol is down, it periodically resets the interface in an effort to restart it. Interface resets can also occur when an async interface is looped back or shut down.

output buffer failures

Number of outgoing packets dropped from the output buffer.

output buffers swapped out

Number of times the output buffer was swapped out.

carrier transitions

Number of times the carrier detect (CD) signal of an async interface has changed state. Indicates modem or line problems if the CD line changes state often. If data carrier detect (DCD) goes down and comes up, the carrier transition counter increments two times.

Related Commands

show controllers async

show modem

To display a high-level performance report for all the modems or a single modem inside an access server or router, use the show modem EXEC command.

show modem [slot/port | group number]

Syntax Description

slot/port

(Optional) Specifies the location of a slot and modem port. If this number is not specified, statistics for all connected modems are displayed. Remember to include the forward slash (/) when entering this variable.

group number

(Optional) Specifies a modem group to which a specified modem belongs. The group number range is between 1 and 200.

Command Mode

User and Privileged EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2.

Sample Displays

The following display shows output information for the show modem command:
router#show modem
                 Inc calls      Out calls   Busied   Failed  No       Succ
  Mdm  Usage    Succ   Fail   Succ   Fail   Out      Dial    Answer   Pct.
* 2/0    67%       0      0     27      1       0        0       0     96%
  2/1    67%       1      0     25      0       0        0       0    100%
  2/2    68%       1      0     25      0       0        0       0    100%
  2/3    64%       3      0     17      2       0        0       0     90%
  2/4    66%       4      0     18      1       0        0       0     95%
  2/5    68%       6      0     21      0       0        0       0    100%
* 2/6    65%       3      0     19      2       0        0       0     91%
  2/7    54%      14      0      8      1       0        0       0     95%
  2/8    57%      15      0      7      0       0        0       0    100%
* 2/9    53%      17      0      5      0       0        0       0    100%
* 2/10   50%      20      0      2      0       0        0       0    100%
  2/11   47%      21      1      0      0       0        0       0     95%
describes the fields in the previous display.

Table 3 Show Modem Field Descriptions for MICA Modems

Field

Description

Mdm

Slot and modem port number. Also, the following modem states can appear to the left of a slot/modem port number:

•b—Modem was removed from service with the modem shutdown command or the modem busyout command.

•B—Modem is suspected to be inoperable or bad. No calls can be made with this modem. The letter B can also mean that a modem firmware download failed for the specified modem. In this case, try unmarking the modem as bad with the no modem bad command and upgrading the modem firmware again.

•d—The RAM-based DSP code, which supports K56flex, is not configured. The modem will revert to transmitting at 33.6 kbps.

•D—Modem is currently downloading firmware.

•R—Modem is held and isolated in a suspended state by the modem hold-reset command.

•T—Modem is conducting a back-to-back test with another modem.

•*—Modem is connected or dialing.

Usage

Percentage of the total system uptime that all modems are in use.

Inc calls Succ

Number of incoming calls that successfully connected to a modem.

Inc calls Fail

Number of incoming calls that unsuccessfully connected to a modem.

Out calls Succ

Number of outgoing calls that successfully dialed out from an available modem.

Out calls Fail

Number of outgoing calls that unsuccessfully dialed out from an available modem.

Busied Out

Number of modems that have been manually removed from service.

Failed Dial

Number of modems that attempted to dial in to the network but failed to make a connection.

No Answer

Number of modems that detected an incoming ring but failed to answer the call.

Succ Pct

Successful connection percentage of total available modems.

The following display shows output information for the show modem command for the modem located in slot 2, port 0:
router#show modem 2/0
Mdm  Typ    Status     Tx/Rx     G  Duration  TX  RX  RTS  CTS  DSR  DCD  DTR
2/0  V34bis Conn    33600/31200  1  00:00:44   -   -             x          
Modem 2/0 [line 65], Async65, TTY65
MICA-6DM Firmware: CP ver 2017 - 9/29/1997, SP ver 2017 - 9/29/1997.
Modem config: Incoming and Outgoing
Protocol: LAPM, Compression: V42bis
  Last clearing of "show modem" counters: never
    0 incoming completes, 0 incoming failures
    24 outgoing completes, 1 outgoing failures
    0 failed dial attempts, 0 ring no answers, 0 busied outs
    0 no dial tones, 0 dial timeouts, 0 watchdog timeouts
    0 no carriers, 0 link failures, 0 resets, 0 recover oob
    0 protocol timeouts, 0 protocol errors, 0 lost events
    0 TDM errors, 7 speed shifts (up/dn - 3/0), 1 retrains (hi/lo - 0/0)
Transmit Speed Counters:
Connection Speeds         75      300      600     1200     2400     4800
# of connections           0        0        0        0        0        0
Connection Speeds       7200     9600    12000    14400    16800    19200
# of connections           0        0        0        0        0        0
Connection Speeds      21600    24000    26400    28800    31200    32000
# of connections           0        0        0        3       21        0
Connection Speeds      33600    34000    36000    38000    40000    42000
# of connections           0        0        0        0        0        0
Connection Speeds      44000    46000    48000    50000    52000    54000
# of connections           0        0        0        0        0        0
Connection Speeds      56000
# of connections           0
Receive Speed Counters:
Connection Speeds         75      300      600     1200     2400     4800
# of connections           0        0        0        0        0        0
Connection Speeds       7200     9600    12000    14400    16800    19200
# of connections           0        0        0        0        0        0
Connection Speeds      21600    24000    26400    28800    31200    32000
# of connections           0        0        0        0       21        0
Connection Speeds      33600    34000    36000    38000    40000    42000
# of connections           3        0        0        0        0        0
Connection Speeds      44000    46000    48000    50000    52000    54000
# of connections           0        0        0        0        0        0
Connection Speeds      56000
# of connections           0
describes the fields in the previous display.
Table 4 Show Modem Slot/Port Field Descriptions for MICA Modems
Field

Description

Mdm

Slot and modem number.

Typ

Modulation type, which can be any of the following values: Bel103, Bel212, V21, V22, V22bis, V23, V32, V32bis, VFC, V34, V17, V27, V33 and K56Flx.

Status

Current status of the modem. Possible values include: Conn—Modem is connected to a remote host.

•B—Inoperable state, which is configured by the modem bad command.

•B*—Inoperable state, which is configured by the modem startup-test command during initial power-up testing.

•b—Modem is busied out. This can be manually configured by the modem busyout line configuration command.

•Reset—Modem is in reset mode.

•D/L—Modem is downloading firmware.

•Bad FW—Downloaded modem firmware is not operational.

•Busy—Modem is out of service and not available for calls.

•Idle—Modem is ready for incoming and outgoing calls.

Tx/Rx

Transmission and receiving speed for the most recently connected call.

G

Modem group number assigned to the modem. The group number 0 means the modem is not part of any group.

Duration

Time duration of the current call or the last call.

Modem Functions

The following modem functions are displayed on manageable modems. A field that is available and turned on is marked with an x. An unavailable field is marked with a dash (-).

•TX—Transmit Data. The DTE transmits data to the DCE.

•RX—Receive Data. The DCE receives data from the DTE.

•RTS—Request To Send. The DTE signals to the DCE that the DTE accepts data into its buffers.

•CTS—Clear To Send. The DCE signals to the DTE that the DCE accepts data into its buffers.

•DSR—Data Set Ready. The modem is ready to start communication.

•DCD—Data Carrier Detect. The DCE indicates to the DTE that a call is present and established with a remote modem. Dropping the DCD function terminates the session.

•DTR—Data Terminal Ready. The DTE indicates to the DCE that it accepts calls.

Modem

Identifies the slot/port and interfaces associated with this modem.

MICA-6DM Firmware

Installed firmware on this modem.

Modem config:

Indicates the type of traffic this modem is configured for: Outgoing, Incoming, or Incoming and Outgoing.

Protocol:

Protocol the modem is running such as Normal, Direct, reliable/MNP4, and reliable/LAPM (Link Access Procedure for Modems).

Compression:

Compression algorithm running on the modem, such as None, V42bis, and MNP5.

Last clearing of "show modem" counters:

Last time the modem's counters were cleared using the clear modem counters command. A summary of modem events also appears.

•Incoming completes and failures—Total number of incoming connection requests that the modem answered and successfully or unsuccessfully connected with the remote DCE.

•Outgoing completes and failures—Total number of outgoing connection requests that the modem dialed and successfully or unsuccessfully connected with the remote DCE.

•Failed dial attempts—Number of times the modem attempted to dial out but the call failed to leave the modem.

•Ring no answers—Number of times the integrated modem detected ringing but did not answer the incoming call.

•Busied outs—Number of times the integrated modem was intentionally taken out of service (for example, the modem busyout command was enabled on the modem).

•No dial tones—Number of times the dial-out attempt failed because the modem failed to detect a dial tone.

•Dial timeouts—Number of times the modem has timed out while attempting to dial.

•Watchdog timeouts—Number of times the modem internal watchdog timer has expired.

•No carriers—Number of times the modem disconnected because no carrier was present.

•Link failures—Number of times the modem has detected a link failure.

•Resets—Number of times the modem has been reset.

•recover oob—Number of times the out-of-band feature has been cleared and re-initialized.

•Protocol timeouts and errors—Number of times the modem protocol failed to make a call connection.

•Lost events—Number of incomplete modem events performed by the modem.

TDM errors

Number of times the digital modem network module experiences a TDM error, meaning that some PCM samples were lost and were never delivered to the modem. This may be seen if multiple T1/E1 interfaces are used that do not share the same clock source.

speed shifts

Number of times this modem has recorded a speed shift. A summary of events are

•up—Number of times the modem shifted to higher speed.

•dn—Number of times the modem shifted to a lower speed.

It is possible for the modem to enter the speed shift state without actually changing the connect speed.

retrains

Number of times this modem has retrained. A summary of events are:

•hi—Number of times that the retraining resulted in a higher connect speed.

•lo—Number of times the retraining resulted in a lower connect speed.

Transmit Speed Counters Connection Speeds

List of connection speeds that were transmitted by the modem.
# of connections
A complete summary of possible connection speeds and the actual number of connections that occurred at those speeds.

Depending on which modem port module and version of software you are running, possible connection speeds range from 75 to 56,000 bps. The number of successful connections are displayed directly beneath the connection speed identifier. For example, the following output shows that three connections were made at 56 kbps.
Connection Speeds 56000 
# of connections 3
Receive Speed Counters Connection Speeds

List of connection speeds that were received by the modem.
# of connections
A complete summary of possible connection speeds and the actual number of connections that occurred at those speeds.

Depending on which modem port module and version of software you are running, possible connection speeds range from 75 to 56,000 bps. The number of successful connections are displayed directly beneath the connection speed identifier. For example, the following output shows that three connections were made at 56 kbps.
Connection Speeds 56000 
# of connections 3
Related Commands

show modem call-stats
show modem configuration
show modem connect-speeds
show modem csm
show modem group
show modem log
modem operational-status
show modem summary
show modem version

show modem call-stats

To display the local disconnect reasons for all modems inside an access server or router, use the show modem call-stats EXEC command.

show modem call-stats [slot]

Syntax Description

slot

(Optional) Specifies the slot number, which limits the display output to a particular range of modems in the system.

Command Mode

User and Privileged EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.3.

Use this command to find out why a modem ended its connection or why a modem is not operating at peak performance.

Local disconnect reasons for a particular modem are listed across the top of the screen display. For example, see lostCarr, dtrDrop, rmtLink, wdogTimr, compress, retrain, inacTout, and linkFail in the following output:
router# show modem call-stats
  dial-in/dial-out call statistics
       lostCarr  dtrDrop  rmtLink wdogTimr compress  retrain inacTout linkFail
  Mdm 
* 0/0 
* 0/1 
In the body of the screen display, the number of times an error occurred on a specific modem is displayed (see the # column). The % column shows the total running percent that a modem was logged for the specified disconnect reason with respect to the entire modem pool. For example, out of all the times the lostCarr error occurred on all the modems in the system, the lostCarr error occurred 2% of the time on modem 0/0.
router# show modem call-stats
  dial-in/dial-out call statistics
       lostCarr  dtrDrop  rmtLink wdogTimr compress  retrain inacTout linkFail
  Mdm     #   %    #   %    #   %    #   %    #   %    #   %    #   %    #   %
* 0/0     6   2    2   3    1   0    0   0    0   0    0   0    0   0    0   0
* 0/1     5   2    2   3    2   1    0   0    0   0    0   0    0   0    0   0
Bad or malfunctioning modems are detected by an unusually high number of disconnect counters for a particular disconnect reason. For example, if modem 1/0 had an astronomically high number of compression errors compared to the remaining modems in system, modem 1/0 would probably be bad or inoperable.

To reset the counters displayed by the show modem call-stats command, issue the clear modem counters command.

Note Remote disconnect reasons are not described by this command.

Sample Displays

The following example shows call statistics for the show modem call-stats command. Due to the screen size limitation of most terminal screen displays, all the possible disconnect reasons cannot be displayed at the same time. Only the eight most frequently experienced disconnect reasons are displayed.

See for descriptions of the fields and end-connection events in the following sample display.
router# show modem call-stats
  dial-in/dial-out call statistics
       lostCarr  dtrDrop  rmtLink wdogTimr compress  retrain inacTout linkFail
  Mdm     #   %    #   %    #   %    #   %    #   %    #   %    #   %    #   %
* 0/0     6   2    2   3    1   0    0   0    0   0    0   0    0   0    0   0
* 0/1     5   2    2   3    2   1    0   0    0   0    0   0    0   0    0   0
  0/2     5   2    2   3    4   3    0   0    0   0    0   0    0   0    0   0
* 0/3     5   2    2   3    2   1    0   0    0   0    0   0    0   0    0   0
* 0/4     5   2    1   1    1   0    0   0    0   0    0   0    0   0    0   0
* 0/5     5   2    2   3    2   1    0   0    0   0    0   0    0   0    0   0
* 0/6     4   1    2   3    2   1    0   0    0   0    0   0    0   0    0   0
* 0/7     4   1    2   3    4   3    0   0    0   0    0   0    0   0    0   0
* 0/8     6   2    1   1    3   2    0   0    0   0    0   0    0   0    0   0
* 0/9     5   2    1   1    1   0    0   0    0   0    0   0    0   0    0   0
* 0/10    5   2    1   1    2   1    0   0    0   0    0   0    0   0    0   0
* 0/11    5   2    1   1    2   1    0   0    0   0    0   0    0   0    0   0
  0/12    5   2    2   3    2   1    0   0    0   0    0   0    0   0    0   0
* 0/13    5   2    1   1    1   0    0   0    0   0    0   0    0   0    0   0
* 0/14    5   2    1   1    1   0    0   0    0   0    0   0    0   0    0   0
* 0/15    5   2    1   1    1   0    0   0    0   0    0   0    0   0    0   0
* 0/16    5   2    1   1    1   0    0   0    0   0    0   0    0   0    0   0
* 0/17    5   2    1   1    2   1    0   0    0   0    0   0    0   0    0   0
* 0/18    5   2    1   1    2   1    0   0    0   0    0   0    0   0    0   0
* 0/19    5   2    1   1    3   2    0   0    0   0    0   0    0   0    0   0
* 0/20    5   2    1   1    1   0    0   0    0   0    0   0    0   0    0   0
* 0/21    5   2    1   1    1   0    0   0    0   0    0   0    0   0    0   0
* 0/22    5   2    1   1   11  10    0   0    0   0    0   0    0   0    0   0
* 0/23    5   2    1   1    2   1    0   0    0   0    0   0    0   0    0   0
* 2/0     4   1    2   3    2   1    0   0    0   0    0   0    0   0    0   0
* 2/1     5   2    1   1    2   1    0   0    0   0    0   0    0   0    0   0
* 2/2     5   2    2   3    0   0    0   0    0   0    0   0    0   0    0   0
* 2/3     5   2    1   1    2   1    0   0    0   0    0   0    0   0    0   0
* 2/4     5   2    1   1    2   1    0   0    0   0    0   0    0   0    0   0
* 2/5     5   2    1   1    2   1    0   0    0   0    0   0    0   0    0   0
* 2/6     4   1    1   1    1   0    0   0    0   0    0   0    0   0    0   0
* 2/7     5   2    1   1    1   0    0   0    0   0    0   0    0   0    0   0
* 2/8     5   2    1   1    1   0    0   0    0   0    0   0    0   0    0   0
* 2/9     4   1    1   1    2   1    0   0    0   0    0   0    0   0    0   0
* 2/10    5   2    1   1    0   0    0   0    0   0    0   0    0   0    0   0
* 2/11    5   2    1   1    5   4    0   0    0   0    0   0    0   0    0   0
* 2/12    5   2    1   1    2   1    0   0    0   0    0   0    0   0    0   0
* 2/13    5   2    1   1    1   0    0   0    0   0    0   0    0   0    0   0
* 2/14    5   2    1   1    2   1    0   0    0   0    0   0    0   0    0   0
* 2/15    4   1    1   1    3   2    0   0    0   0    0   0    0   0    0   0
* 2/16    4   1    1   1    3   2    0   0    0   0    0   0    0   0    0   0
* 2/17    5   2    2   3    9   8    0   0    0   0    0   0    0   0    0   0
* 2/18    4   1    1   1    1   0    0   0    0   0    0   0    0   0    0   0
* 2/19    3   1    1   1    2   1    0   0    0   0    0   0    0   0    0   0
* 2/20    7   3    1   1    8   7    0   0    0   0    0   0    0   0    0   0
* 2/21    5   2    1   1    1   0    0   0    0   0    0   0    0   0    0   0
* 2/22    4   1    1   1    2   1    0   0    0   0    0   0    0   0    0   0
* 2/23    5   2    1   1    2   1    0   0    0   0    0   0    0   0    0   0
 Total  233       59      110        0        0        0        0        0
  dial-out call statistics
         noCarr noDitone     busy    abort dialStrg autoLgon dialTout  rmtHgup
  Mdm     #   %    #   %    #   %    #   %    #   %    #   %    #   %    #   %
* 0/0     1   1    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 0/1     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   0    0   0    0   0    0   0    0   0
* 0/3     1   1    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 0/4     1   1    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 0/5     0   0    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 0/6     1   1    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 0/7     5   5    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 0/8     0   0    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 0/9     1   1    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 0/10    0   0    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 0/11    5   5    0   0    0   0    0   0    0   0    0   0    0   0    0   0
  0/12    0   0    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 0/13    0   0    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 0/14    1   1    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 0/15    1   1    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 0/16    2   2    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 0/17    4   4    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 0/18    5   5    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 0/19    1   1    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 0/20    0   0    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 0/21    0   0    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 0/22    5   5    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 0/23    1   1    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/0     2   2    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/1     3   3    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/2     0   0    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/3     0   0    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/4     0   0    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/5     1   1    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/6     1   1    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/7     4   4    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/8     7   8    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/9     4   1    1   1    2   1    0   0    0   0    0   0    0   0    0   0
* 2/10    1   1    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/11    1   1    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/12    1   1    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/13    1   1    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/14    4   4    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/15    1   1    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/16    1   1    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/17    5   5    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/18    5   5    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/19    3   3    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/20    0   0    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/21    4   4    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/22    2   2    0   0    0   0    0   0    0   0    0   0    0   0    0   0
* 2/23    0   0    0   0    0   0    0   0    0   0    0   0    0   0    0   0
 Total   84        0        0        0        0        0        0        0
Table 5 Show Modem Call-Stats Field Descriptions

Field

Description

dial-in/dial-out call statistics

This category of disconnect reasons can happen only in dial-in or dial-out scenarios.

wdogTimr

Watchdog timeout. An obscure firmware problem occurred. This is a rare disconnect reason.

compress

Compression. An error was detected during decompression, which caused the internal decompression dictionary to overflow. This could be caused by a modem dialing in that is using a slightly different compression algorithm.

retrain

Retrain failure. A connection was lost and not re-established after three attempts.

inacTout

Inactivity timeout. The time specified in the AT/T command has expired. No modem data transfers were detected during that period.

linkFail

Link failure. The protocol level link failed while using MNP-10 or LAPM in reliable mode.

moduFail

Modulation error. An error was detected at the DSP chip level, which caused a disconnect.

mnpProto

MNP10 protocol error. An uncorrectable error occurred during a MNP-10 connection.

lapmProt

LAPM protocol error. An uncorrectable error occurred during an LAPM connection.

lostCarr

Lost carrier. The modem firmware detected a carrier drop during a connection. The cause for the carrier drop could be the loss of signal from the remote modem or the result of a error detection.

dtrDrop

DTR drop. The modem disconnected because the DTR signal from the host became inactive.

userHgup

User hang up. The modem disconnected because a command such as ATH was detected.

rmtlink

Remote link disconnect. If an MNP-10 reliable link is established, the remote modem sends the disconnect reason across the link before disconnecting. The disconnect reason displayed is LOCAL (remote link disconnect) and REMOTE (the reason the remote modem disconnected).

trminate

Terminate. A password security error occurred in the Microcom HDMS. This error occurs only with Microcom modems.

callBkfa

Callback failed. This error applies to leased line connections only. A switched line connection failed and a connection still cannot be made on the leased line.

dial-out call statistics

This category of disconnect reasons can happen only in a dial-out scenario.

noCarr

No carrier. The called number answered, but no answer tone was detected after the appropriate wait.

noDitone

No dialtone. No dial tone was detected after the modem went off-hook.

busy

Busy. A busy signal was detected while the local modem was attempting to dial.

abort

Abort. A character was received from the remote host after the dial command was issued and before a connection was established.

dialStrg

Dialstring error. An invalid character was detected in the dial string, which forced the dial attempt to terminate.

autoLgon

Autologon error. An autologon sequence did not successfully complete.

dialTout

Dial timeout. When a semicolon is used as a dial modifier, the modem returns to the command state as indicated by an "OK." This allows a continuation of the dial string. If a period of time elapses as specified in the S7 register without the dial string completing, the attempt is aborted with dial timeout as the disconnect reason.

rmtHgup

Remote hangup. The modem disconnected because the remote modem disconnected the call and dropped DTR.

blacklst

Blacklist. In a country that supports blacklisting, an attempt was made to go off-hook with a null dial string (ATD).

ccpNssn

CCP not seen. The credit card prompt (also known as Bong) was not detected.

faxClasz

FAX class 2 error. An abnormal termination to a fax transmission was detected.

Total

Total number of times the disconnect reason occurred among all the modems in the system.

Related Commands

show modem
show modem configuration
show modem connect-speeds
show modem csm
show modem group
show modem log
modem operational-status
show modem summary
show modem version

show modem configuration

To display the current modem configuration if a digital MICA modems, use the show modem configuration EXEC command.

show modem configuration {slot/port}

Syntax Description

slot/port

Specifies the location of a slot and modem port. Remember to include the forward slash (/) when entering this variable.

Command Mode

User and Privileged EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2P.

The modem operates with a default configuration that is reloaded after every connection. If the command is issued when the modem is disconnected, it will display this default configuration. If issued when a call is active, it will reflect any changes that might have been made through a chat script.

The S-register values can be changed through a chat script by specifying the register number and new value, using the following syntax:

ATSnumber=value

The number argument defines the S-register number. The value argument is the value for the S-register. For example, if you wanted to disable data compression, you would enter ATS21=0.

You can obtain similar information to that displayed by the show modem configuration command by reverse telneting to the modem and issuing the following AT command: AT%R.

Sample Displays

The following example uses the show modem configuration command to display the configuration for modem 2/1, which resides in slot 2/1 of a Cisco 3640:
router#show modem config 2/1
  S-Reg   Value   Meaning
 -------|-------|---------------------------------------------
    S-- = 1       Country Code is Domestic
    S00 = 1       Auto Answer after 1 seconds
    S01 = 0       Reserved
    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 = 40      wait up to 40 seconds for carrier after dialing
    S08 = 2       comma adds 2 second dial delay
    S09 = 317     BitMap register value = 0x13D
    S10 = 14      1.4 second delay for hangup after carrier loss
    S11 = 0       In Answer Mode
    S12 = 8       8 Data Bits
    S13 = 0       No Parity
    S14 = 1       1 Stop Bits
    S15 = 1       V.42 ODP generation enabled
    S16 = 50      5.0 second Error Correction autodetect timeout
    S17 = 100     10.0 second Error Correction negotiation timeout
    S18 = 13      Error Correction fallback char is 0xD
    S19 = 12      Error Correction retransmission limit is 12
    S20 = 256     Error Correction frame length is 256 octets
    S21 = 3       V42bis or MNP Data Compression
    S22 = 1       ARA Error Correction is enabled for answer, not originate
    S23 = 1       V.42 Error Correction enabled
    S24 = 1       MNP Error Correction enabled
    S25 = 0       Link Protocol Fallback to Async framing
    S26 = 0       Using TDM slice 0
    S27 = 0       Calling Tone disabled
    S28 = 0       Guard Tone disabled
    S29 = 5       K56Flex 1.1 modem standard
    S30 = 33600   Maximum connect rate of 33600 bps
    S31 = 300     Minimum connect rate of 300 bps
    S32 = 2       Bit Errors >= 1:1000 cause recovery
    S33 = 500     Fallback/Fallforward Squelch Timer is 500 ms
    S34 = 1000    Fall Forward Timer is 10.0 seconds
    S35 = 50      Fall Back Timer is 0.50 seconds
    S36 = 20      Terminate timeout is 20 seconds
    S37 = 40      Wait 40 seconds for data mode timeout
    S38 = 14      1.4 second lost carrier to hang-up delay
    S39 = 7       Transmit level setting of -13 dBm
    S40 = 4       4 consecutive retrains cause link disconnect
    S41 = 5       V.34 maximum symbol rate of 3429 baud
    S42 = 0       V.34 minimum symbol rate of 2400 baud    
    S43 = 2       V.34 carrier frequency is Auto Selection
    S44 = 11      V.34 Preemphasis filter selection is Automatic
    S45 = 0       Null transmit and receive Signalling Type
    S46 = 0       No call progress tone detection
    S47 = 2       +++ escape detection enabled for originate mode only
    S48 = 1       AT command processor enabled
    S49 = 0       no call setup delay
    S50 = 60000   Maximum PCM connect rate of 60000 bps
    S51 = 32000   Minimum PCM connect rate of 32000 bps
    S52 = 1       Digital Pad Compensation is enabled 
describes the fields in the previous display.

Table 6 Show Modem Configuration Field Descriptions for MICA Modems

Field

Description

S-Reg

S-Register.

Value

Number identifying the S-Register value.

Meaning

Description of the defined S-Register value.

Related Commands

show modem
show modem call-stats
show modem connect-speeds
show modem csm
show modem group
show modem log
modem operational-status
show modem summary
show modem version

show modem connect-speeds

To display connection speed statistics for all the modems running in an access server or router, use the show modem connect-speeds EXEC command.

show modem connect-speeds [max-speed [slot]]

Syntax Description

max-speed

(Optional) Maximum speed you want displayed in the shifting speed window. You can specify from 12,000 to 56,000 bps.

slot

(Optional) Specifies the slot number, which limits the display output to a particular range of modems in the system.

Default

The maximum speed displayed is 12,000 bps.

Command Mode

User and Privileged EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.3.

Because most terminal screens are not wide enough to display the entire range of connection speeds at one time (for example, 75 to 56000 bps), the max-speed variable is used. This variable specifies the contents of a shifting baud-rate window, which provides you with a snapshot of modem connection speeds for your system. If you want to see a snapshot of lower baud rates, specify a lower connection speed. If you want to see a snapshot of higher baud rates, specify a higher connection speed.

The max-speed variable also rounds up to the nearest recognizable baud rate by the software, so you do not need to memorize or enter exact connection speeds. For example, if you enter a maximum baud rate of 22059, the system software automatically rounds the value up to 24000.

To display a complete picture of all the connection speeds and counters on the system, you must enter a series of commands. Each time you enter the show modem connect-speeds max-speed command, only nine baud rate columns can be displayed at the same time. shows a range of commands that you can issue, one at a time, to see a complete picture of the total possible connection speeds on your access server.

Table 7

Command

Connect Speed Range Displayed

show modem connect-speeds 56000

40,000 to 56,000 bps

show modem connect-speeds 38000

24,000 to 38,000 bps

show modem connect-speeds 21600

2,400 to 21,600 bps

show modem connect-speeds 12000

75 to 1200 bps

Connect Speed Displays for the Show Modem Connect-Speeds Command

The show modem connect-speeds command displays a log of connection speed statistics starting from the last time the access servers or router was power cycled or the clear modem counters command was entered. If you want to create a monthly report of the connection speeds achieved by the modems, enter the clear modem counters command at the beginning of the month and enter the show modem connect-speeds command at the end of the month.

Note The Cisco IOS software does not accept commas (,) in the connect speed field. For example, enter 28000 not 28,000.

Sample Displays

The following display shows connection speed statistics up to 28000 bps.
router# show modem connect-speeds 28800
  transmit connect speeds
  Mdm    9600  12000  14400  16800  19200  21600  24000  26400  28800 TotCnt
* 1/0       0      0      0      0      3      4      6     37     23     74
* 1/1       0      0      3      1      0      4      9     41     20     80
* 1/2       0      0      2      0      1      3     10     37     26     82
  1/3       1      0      0      0      0      3     15     35      7     62
  1/4       0      0      0      0      4      2      8     20     13     49
* 1/5       0      0      4      0      1      0      4     38     17     65
* 1/6       0      0      2      1      0      1      9     32     11     57
* 1/7       1      0      2      0      0      5     10     31     18     67
* 1/8       0      0      0      1      1      1     10     42     11     68
  1/9       0      0      2      1      2      4      4     30     23     67
  1/10      0      0      0      0      0      2      5     26     22     56
* 1/11      0      0      0      0      3      1     16     38     17     76
* 1/12      0      0      0      0      0      3      7     40     12     62
  1/13      0      0      0      1      2      3     11     20     14     51
  1/14      0      0      2      0      0      2      7     26     12     51
  1/15      0      0      1      1      1      2      6     29     25     65
  1/16      2      0      2      0      1      5     10     37     15     73
  1/17      0      0      0      0      0      2     10     33     22     67
  1/18      0      0      2      2      0      2     12     17     25     61
* 1/19      2      0      3      0      1      2      9     35     20     74
  1/20      0      0      2      2      2      2      8     28     21     65
* 1/21      0      1      2      0      1      2      5     23     21     58
* 1/22      0      0      1      0      1      1      5     27     21     56
* 1/23      0      0      2      0      0      4      8     30     15     60
 Tot        6      1     32     10     24     60    204    752    431   1546
 Tot %      0      0      2      0      1      3     13     48     27
  receive connect speeds
  Mdm    9600  12000  14400  16800  19200  21600  24000  26400  28800 TotCnt
* 1/0       0      0      1      0      1      2      9     35     25     74
* 1/1       0      0      3      0      1      3     10     42     18     80
* 1/2       0      0      2      0      1      4      8     40     26     82
  1/3       1      0      0      0      0      1     10     36     14     62
  1/4       0      0      1      0      2      2      8     22      8     49
* 1/5       0      1      4      0      0      0      9     32     17     65
* 1/6       0      0      2      0      0      0      7     33     14     57
* 1/7       0      0      2      1      1      0      6     39     18     67
* 1/8       0      0      0      0      1      0     11     43     12     68
  1/9       1      0      3      0      0      0      8     33     22     67
  1/10      0      0      0      0      1      1      6     31     17     56
* 1/11      0      0      0      1      1      1     14     43     16     76
* 1/12      0      0      0      0      0      0      5     43     12     62
  1/13      0      0      0      0      0      2     10     26     13     51
  1/14      0      0      2      1      0      0      5     27     14     51
  1/15      0      0      1      0      1      2      3     36     22     65
  1/16      1      0      3      1      2      0      8     37     20     73
  1/17      0      0      0      0      0      0      8     36     22     67
  1/18      0      1      1      0      0      2      4     30     20     61
* 1/19      0      0      3      2      1      1      6     42     18     74
  1/20      0      1      2      1      2      1      2     37     18     65
* 1/21      0      0      3      3      1      2      2     28     18     58
* 1/22      0      0      1      0      1      0      5     32     16     56
* 1/23      0      0      2      0      0      1      8     35     13     60
 Tot        3      3     36     10     17     25    172    838    413   1546
 Tot %      0      0      2      0      1      1     11     54     26
The following display shows connection speed statistics up to 56000 bps.
router# show modem connect-speeds 56000
  transmit connect speeds
  Mdm   40000  42000  44000  46000  48000  50000  52000  54000  56000 TotCnt
  1/0       0      0      0      0      0      0      0      0      0      0
  1/1       0      0      0      0      0      0      0      0      0      0
  1/2       0      0      0      0      0      0      0      0      0      0
  1/3       0      0      0      0      0      0      0      0      0      0
  1/4       0      0      0      0      0      0      0      0      0      0
  1/5       0      0      0      0      0      0      0      0      0      0
  1/6       0      0      0      0      0      0      0      0      0      0
  1/7       0      0      0      0      0      0      0      0      0      0
  1/8       0      0      0      0      0      0      0      0      0      0
  1/9       0      0      0      0      0      0      0      0      0      0
  1/10      0      0      0      0      0      0      0      0      0      0
  1/11      0      0      0      0      0      0      0      0      0      0
  1/12      0      0      0      0      0      0      0      0      0      0
  1/13      0      0      0      0      0      0      0      0      0      0
  1/14      0      0      0      0      0      0      0      0      0      0
  1/15      0      0      0      0      0      0      0      0      0      0
  1/16      0      0      0      0      0      0      0      0      0      0
  1/17      0      0      0      0      0      0      0      0      0      0
  1/18      0      0      0      0      0      0      0      0      0      0
  1/19      0      0      0      0      0      0      0      0      0      0
  1/20      0      0      0      0      0      0      0      0      0      0
  1/21      0      0      0      0      0      0      0      0      0      0
  1/22      0      0      0      0      0      0      0      0      0      0
  1/23      0      0      0      0      0      0      0      0      0      0
 Tot        0      0      0      0      0      0      0      0      0      0
 Tot %      0      0      0      0      0      0      0      0      0
  receive connect speeds
  Mdm   40000  42000  44000  46000  48000  50000  52000  54000  56000 TotCnt
  1/0       0      0      0      0      0      0      0      0      0      0
  1/1       0      0      0      0      0      0      0      0      0      0
  1/2       0      0      0      0      0      0      0      0      0      0
  1/3       0      0      0      0      0      0      0      0      0      0
  1/4       0      0      0      0      0      0      0      0      0      0
  1/5       0      0      0      0      0      0      0      0      0      0
  1/6       0      0      0      0      0      0      0      0      0      0
  1/7       0      0      0      0      0      0      0      0      0      0
  1/8       0      0      0      0      0      0      0      0      0      0
  1/9       0      0      0      0      0      0      0      0      0      0
  1/10      0      0      0      0      0      0      0      0      0      0
  1/11      0      0      0      0      0      0      0      0      0      0
  1/12      0      0      0      0      0      0      0      0      0      0
  1/13      0      0      0      0      0      0      0      0      0      0
  1/14      0      0      0      0      0      0      0      0      0      0
  1/15      0      0      0      0      0      0      0      0      0      0
  1/16      0      0      0      0      0      0      0      0      0      0
  1/17      0      0      0      0      0      0      0      0      0      0
  1/18      0      0      0      0      0      0      0      0      0      0
  1/19      0      0      0      0      0      0      0      0      0      0
  1/20      0      0      0      0      0      0      0      0      0      0
  1/21      0      0      0      0      0      0      0      0      0      0
  1/22      0      0      0      0      0      0      0      0      0      0
  1/23      0      0      0      0      0      0      0      0      0      0
 Tot        0      0      0      0      0      0      0      0      0      0
 Tot %      0      0      0      0      0      0      0      0      0
describes the fields in the previous displays.

Table 8

Field

Description

transmit connect speeds

Connection speeds for calls initiated by the system.

Mdm
slot/port

Specified slot and port number assigned to the modem.

speed counters

The transmit and receive speed counters are 75, 300, 600, 1200, 2400, 4800, 7200, 9600, 12000, 14400, 16800, 19200, 21600, 24000, 26400, 28800, 31200, 33600, 32000, 34000, 36000, 38000, 40000, 42000, 44000, 46000, 48000, 50000, 52000, 54000, and 56000 bps.

TotCnt

For the specified modem, the sum of the number of times a connection was initiated or received at one of the specified connection rates (75 to 56,000 bps).

Tot

For all modems loaded in the system, the total number of times a call was initiated or received at the specified speed.

Tot %

Percentage of the total number of calls that were initiated or received at the specified speed.

receive connect speeds

Connection speeds for incoming calls.

Show Modem Connect-Speeds Field Descriptions

Related Commands

show modem
show modem call-stats
show modem configuration
show modem csm
show modem group
show modem log
modem operational-status
show modem summary
show modem version

show modem csm

To display call switch module (CSM) modem information about MICA digital modems, use the show modem csm EXEC command.

show modem csm [slot/port | group-number]

Syntax Description

slot/port

Specifies the display for a single modem in a MICA digital modem board.

group-number

Displays output for a predefined group of modems. Valid entries are defined groups from 1 to 1002.

Command Mode

User EXEC

Usage Guideline

This command first appeared in Cisco IOS Release 11.3(2)T.

Use the show modem csm command to display CSM MICA modem information. If you do not enter the optional slot/port or group-number arguments, CSM modem information for all modems is displayed.

Sample Displays

The following example uses the show modem csm command to display CSM information for MICA modem 2/6, which resides in slot 2/6 of a Cisco 3640:
router#show modem csm 2/6
Modem 2/6, line 71 (digital)
CSM status(0): CSM_STATUS_UNLOCKED
CSM current state(0x00000000): IDLE_STATE
CSM last event: ASYNC_DTR_UP, cause: 0x0000
wdt timer is not activated
invalid_events 0, wdt_timeouts 0
ic_failure 0, ic_complete 4, oc_failure 0, oc_complete 0
oc_busy 0, remote_link_disc 0, busyout 0, modem_reset 0
call started 2d05h, call ended 2d19h, total modem active time 13:53:01
describes the fields in the previous display.

Table 9 Show Modem MICA Field Descriptions

Field

Description

Modem

Slot/port of the modem being displayed.

line

Corresponding async interface number.

CSM status

Status of modem.

CSM current state

State of modem.

CSM last event

Last event received.

wdt timer

Indicates whether or not the watchdog timer is running.

invalid events:

Number of unexpected events received by CSM.

wdt timeouts:

Number of watchdog timeouts that have occurred.

ic_failure

Number of incoming call failures.

ic_complete

Number of incoming call completions.

oc_failure

Number of outgoing call failures.

oc_complete

Number of outgoing call completions.

oc_busy

Number of outgoing calls that reached a busy signal.

remote_link_disc

Number of disconnections initiated from the remote end.

busyout

Number of times the modem has been configured for busyout.

modem_reset

Number of times the modem has been reset.

call started

Time when the last call started.

call ended

Time when the last call ended.

total modem active time

Total amount of time the modem has been active across all calls.

Related Commands

show modem
show modem call-stats
show modem configuration
show modem group
show modem log
modem operational-status
show modem summary
show modem version

show modem group

To display call summary information for MICA digital modems associated with a modem group (and which modems are associated with that group), use the show modem group EXEC command.

show modem group [number]

Syntax Description

number

(Optional) Specifies the identifying number for the modem group. Valid entries are from 1 to 1002.

Command Mode

User and Privileged EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.3(2)T.

This command displays call summary information about the modems associated with the specific modem group and lists which modems are members of that group. If a modem group number is specified, the system displays detailed call information normally displayed by the show modem command, in addition to the summary information. If a group number is not specified, call summary statistics for each defined modem group is displayed.

Sample Displays

The following example uses the show modem group command to display call summary information for each defined group.
router#show modem group
              Incoming calls     Outgoing calls    Busied   Failed  No    Succ
Grp  Usage  Succ   Fail  Avail Succ   Fail  Avail  Out      Dial    Ans   Pct.
  1     7%    46      1     11      0      0     11      0        0    0    97%
Modem Group 1: 2/0, 2/1, 2/2, 2/3, 2/4, 2/5, 2/6, 2/7, 2/8, 2/9, 2/10, 2/11 
describes the fields in the previous display.

Table 10 Show Modem Group Field Descriptions for MICA Modems

Field

Description

Grp

Group number.

Usage

Average percentage of time that a modem is busy or in use.

Incoming calls Succ

Number of all incoming call completions for all modems in the group.

Incoming calls Fail

Number of all incoming call failures for all modems in the group.

Incoming calls Avail

Number of modems currently available to receive an incoming call.

Outgoing calls Succ

Number of all outgoing call completions for all modems in the group.

Outgoing calls Fail

Number of all outgoing call failures for all modems in the group.

Outgoing calls Avail

Number of modems currently available that could place an outgoing call.

Busied Out

Total number of times that the modem has been taken out of service with the modem busyout command.

Failed Dial

Total number of times that a B-channel failed to be established during dial-out.

No Ans

Number of outgoing call failures where the remote end did not respond for all modems in the group.

Succ Pct

Percentage of successful call completion for all modems in the group.

Modem Group

Number designating this modem group.

The following example uses the show modem group command to display call summary information for a particular modem group, followed by the detailed show modem command call information for each modem in that group. The example output below only shows the information displayed for one modem; when you issue this command, information will be displayed for all modems belonging to the specified modem group.
router#show modem group 1
              Incoming calls     Outgoing calls    Busied   Failed  No    Succ
Grp  Usage  Succ   Fail  Avail Succ   Fail  Avail  Out      Dial    Ans   Pct.
  1     6%    62      4     11      1      9     11      0        1    0    82%
Modem Group 1: 2/0, 2/1, 2/2, 2/3, 2/4, 2/5, 2/6, 2/7, 2/8, 2/9, 2/10, 2/11
Mdm  Typ    Status     Tx/Rx     G  Duration  TX  RX  RTS  CTS  DSR  DCD  DTR
2/0  V34bis Idle    28800/26400  1  00:00:16   -   -             x          
Modem 2/0 [line 65], Async65, TTY65
MICA-6DM Firmware: CP ver 2218 - 15/7/52768, SP ver 2218 - 2/9/1998.
Modem config: Incoming and Outgoing
Protocol: LAPM, Compression: V42bis
  Last clearing of "show modem" counters: never
    5 incoming completes, 0 incoming failures
    0 outgoing completes, 6 outgoing failures
    1 failed dial attempts, 0 ring no answers, 0 busied outs
    0 no dial tones, 0 dial timeouts, 0 watchdog timeouts
    0 no carriers, 0 link failures, 0 resets, 0 recover oob
    0 protocol timeouts, 0 protocol errors, 0 lost events
    0 TDM errors, 4 speed shifts (up/dn - 4/0), 5 retrains (hi/lo - 1/2)
Transmit Speed Counters:
Connection Speeds         75      300      600     1200     2400     4800
# of connections           0        0        0        0        0        0
Connection Speeds       7200     9600    12000    14400    16800    19200
# of connections           0        0        0        0        0        0
Connection Speeds      21600    24000    26400    28800    31200    32000
# of connections           1        0        2        1        1        0
Connection Speeds      33600    34000    36000    38000    40000    42000
# of connections           0        0        0        0        0        0
Connection Speeds      44000    46000    48000    50000    52000    54000
# of connections           0        0        0        0        0        0
Connection Speeds      56000
# of connections           0
Receive Speed Counters:
Connection Speeds         75      300      600     1200     2400     4800
# of connections           0        0        0        0        0        0
Connection Speeds       7200     9600    12000    14400    16800    19200
# of connections           0        0        0        0        0        1
Connection Speeds      21600    24000    26400    28800    31200    32000
# of connections           0        0        0        1        0        0
Connection Speeds      33600    34000    36000    38000    40000    42000
# of connections           2        0        0        0        0        1
Connection Speeds      44000    46000    48000    50000    52000    54000
# of connections           0        0        0        0        0        0
Connection Speeds      56000
# of connections           0
describes the fields in the previous display.
Table 11 Detailed Show Modem Group Field Descriptions for MICA Modems
Field

Description

Mdm

Slot and modem number.

Typ

Modulation type, which can be any of the following values: Bel103, Bel212, V21, V22, V22bis, V23, V32, V32bis, VFC, V34, V17, V27, V33 and K56Flx.

Status

Current status of the modem. Possible values include: Conn—Modem is connected to a remote host.

•B—Inoperable state, which is configured by the modem bad command.

•B*—Inoperable state, which is configured by the modem startup-test command during initial power-up testing.

•b—Modem is busied out. This can be manually configured by the modem busyout line configuration command.

•Reset—Modem is in reset mode.

•D/L—Modem is downloading firmware.

•Bad FW—Downloaded modem firmware is not operational.

•Busy—Modem is out of service and not available for calls.

•Idle—Modem is ready for incoming and outgoing calls.

Tx/Rx

Transmission and receiving speed for the most recently connected call.

G

Modem group number assigned to the modem. The group number 0 means the modem is not part of any group.

Duration

Time duration of the current call or the last call.

Modem Functions

The following modem functions are displayed on manageable modems. A field that is available and turned on is marked with an x. An unavailable field is marked with a dash (-).

•TX—Transmit Data. The DTE transmits data to the DCE.

•RX—Receive Data. The DCE receives data from the DTE.

•RTS—Request To Send. The DTE signals to the DCE that the DTE accepts data into its buffers.

•CTS—Clear To Send. The DCE signals to the DTE that the DCE accepts data into its buffers.

•DSR—Data Set Ready. The modem is ready to start communication.

•DCD—Data Carrier Detect. The DCE indicates to the DTE that a call is present and established with a remote modem. Dropping the DCD function terminates the session.

•DTR—Data Terminal Ready. The DTE indicates to the DCE that it accepts calls.

Modem

Identifies the slot/port and interfaces associated with this modem.

MICA-6DM Firmware

Installed firmware on this modem.

Modem config:

Indicates the type of traffic this modem is configured for: Outgoing, Incoming, or Incoming and Outgoing.

Protocol:

Protocol the modem is running such as Normal, Direct, reliable/MNP4, and reliable/LAPM (Link Access Procedure for Modems).

Compression:

Compression algorithm running on the modem, such as None, V42bis, and MNP5.

Last clearing of "show modem" counters:

Last time the modem's counters were cleared using the clear modem counters command. A summary of modem events also appears.

•Incoming completes and failures—Total number of incoming connection requests that the modem answered and successfully or unsuccessfully connected with the remote DCE.

•Outgoing completes and failures—Total number of outgoing connection requests that the modem dialed and successfully or unsuccessfully connected with the remote DCE.

•Failed dial attempts—Number of times the modem attempted to dial out but the call failed to leave the modem.

•Ring no answers—Number of times the integrated modem detected ringing but did not answer the incoming call.

•Busied outs—Number of times the integrated modem was intentionally taken out of service (for example, the modem busyout command was enabled on the modem).

•No dial tones—Number of times the dial-out attempt failed because the modem failed to detect a dial tone.

•Dial timeouts—Number of times the modem has timed out while attempting to dial.

•Watchdog timeouts—Number of times the modem internal watchdog timer has expired.

•No carriers—Number of times the modem disconnected because no carrier was present.

•Link failures—Number of times the modem has detected a link failure.

•Resets—Number of times the modem has been reset.

•recover oob—Number of times the out-of-band feature has been cleared and re-initialized.

•Protocol timeouts and errors—Number of times the modem protocol failed to make a call connection.

•Lost events—Number of incomplete modem events performed by the modem.

TDM errors

Number of times the digital modem network module experiences a TDM error, meaning that some PCM samples were lost and were never delivered to the modem. This may be seen if multiple T1/E1 interfaces are used that do not share the same clock source.

speed shifts

Number of times this modem has recorded a speed shift. A summary of events are

•up: Number of times the modem shifted to higher speed.

•dn: Number of times the modem shifted to a lower speed.

It is possible for the modem to enter the speed shift state without actually changing the connect speed.

retrains

Number of times this modem has retrained. A summary of events are:

•hi: Number of times that the retraining resulted in a higher connect speed.

•lo: Number of times the retraining resulted in a lower connect speed.

Transmit Speed Counters Connection Speeds

List of connection speeds that were transmitted by the modem.
# of connections
A complete summary of possible connection speeds and the actual number of connections that occurred at those speeds.

Depending on which modem port module and version of software you are running, possible connection speeds range from 75 to 56,000 bps. The number of successful connections are displayed directly beneath the connection speed identifier. For example, the following output shows that three connections were made at 56 kbps.
Connection Speeds 56000 
# of connections 3
Receive Speed Counters Connection Speeds

List of connection speeds that were received by the modem.
# of connections
A complete summary of possible connection speeds and the actual number of connections that occurred at those speeds.

Depending on which modem port module and version of software you are running, possible connection speeds range from 75 to 56,000 bps. The number of successful connections are displayed directly beneath the connection speed identifier. For example, the following output shows that three connections were made at 56 kbps.
Connection Speeds 56000 
# of connections 3
Related Commands

show modem
show modem call-stats
show modem configuration
show modem csm
show modem log
show modem operational-status
show modem summary
show modem version

show modem log

To display the modem history event status performed on a manageable modem or group of modems, use the show modem log EXEC command.

show modem log [slot/port | group number]

Syntax Description

slot/port

(Optional) Specifies the location of a slot and modem port. If this number is not specified, statistics for all connected modems are displayed. Remember to include the forward slash (/) when entering this variable.

group number

(Optional) Specifies the location of a specific group of modems. If this number is not specified, statistics for all modems in the access server are displayed. The group number range is between 1 and 200.

Command Mode

User and Privileged EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2.

Sample Display

The following example shows the event log status for a manageable modem. It also identifies the time elapsed since each modem event was performed (for example, 01:02:41 means the modem event occurred 1 hour, 2 minutes, and 41 seconds ago). To escape from the log display mode, press the keys Ctrl-c.
router# show modem log 0/0
 
Modem 0/0 Events Log:
  01:03:03: Startup Response: Microcom MNP10 K56 Modem (Select)
            Modem (boot) firmware = 3.1(16) (3.0(4))
            DSP Controller (SPX) rev = 204.173(0) (143.191(0))
  01:03:03: Control Reply: 0xFF1F
  01:03:03: RS232 event: RTS  noDTR* CTS* DSR* noDCD* noRI  noTST
  01:03:03: RS232 event: RTS  noDTR  CTS  DSR  noDCD  noRI  noTST
  01:03:03: Modem State event: Idle
  01:03:03: End connection event: Retransmits for MNP block (TX/RX) = 0/0
            Duration = 0:00:00, Number of TX/RX char = 0/0
            Local Disc Reason = Lost Carrier
            Remote Disc Reason = Unknown
  01:03:04: Phone number event:
  01:02:51: DTR event: DTR On
  01:02:51: RS232 event: RTS  DTR* CTS  DSR  noDCD  noRI  noTST
  00:39:52: Startup Response: Microcom MNP10 K56 Modem (Select)
            Modem (boot) firmware = 3.1(16) (3.0(4))
            DSP Controller (SPX) rev = 1.1(0) (1.1(0))
  00:39:52: Control Reply: 0xFF1F
  00:39:52: RS232 event: RTS  noDTR* CTS* DSR* noDCD* noRI  noTST
  00:39:52: RS232 event: RTS  noDTR  CTS  DSR  noDCD  noRI  noTST
  00:39:53: Modem State event: Idle
  00:39:53: End connection event: Retransmits for MNP block (TX/RX) = 0/0
            Duration = 0:00:00, Number of TX/RX char = 0/0
            Local Disc Reason = Lost Carrier
            Remote Disc Reason = Unknown
  00:39:53: Phone number event:
  00:39:32: DTR event: DTR On
  00:39:32: RS232 event: RTS  DTR* CTS  DSR  noDCD  noRI  noTST
describes significant fields in the previous display.

Table 12

Field

Description

Modem <slot/port> Events Log:

The modem for which log events are currently displayed.

Startup Response:

List of information describing the modem type, modem firmware, and DSP controller version (for 56K modems only).

Control Reply

Indicates the events the modem will be monitoring.

RS232 event

Detected modem signaling.

Modem State event

Current state of the modem, which can be any of the following:

•Conn—Modem is connected to a remote host.

•Bad—Inoperable state, which is configured by the modem bad command.

•Bad*—Inoperable state, which is configured by the modem startup-test command during initial power-up testing.

•Reset—Modem is in reset mode.

•D/L—Modem is downloading firmware.

•Bad FW—Downloaded modem firmware is not operational.

•Busy—Modem is out of service and not available for calls.

•Idle—Modem is ready for incoming and outgoing calls.

End connection event

Descriptions or reasons why a connection was terminated:

•Duration—Time a connection was up between the local and remote devices.

•Number of TX/RX char—Transmit and receive characters exchanged during the connection time.

•Local or remote disc reason—Reason why the local or remote modem disconnected:

–Lost Carrier—The modem firmware detects a drop in Carrier Detect during a connection.

–DSP Task Hung—The DSP chip malfunctioned and failed to reset.

Phone number event

Descriptive information about the last dialed or current phone number.

Show Modem Log Field Descriptions

Related Commands

modem buffer size
show modem
show modem call-stats
show modem configuration
show modem csm
show modem group
show modem operational-status
show modem summary
show modem version

show modem operational-status

To display the current modem operational status for MICA digital modems, use the show modem operational-status EXEC command.

show modem operational-status {slot/port}

Syntax Description

slot/port

Specifies the location of a slot and modem port. Remember to include the forward slash (/) when entering this variable.

Command Mode

User and Privileged EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2P.

This command displays operational status information about the MICA modems inside this device.

Sample Displays

The following example uses the show modem operational-status command to display the operational status for the modem 2/6 in a Cisco 3640. The modem resides in slot 2 and has been assigned to port number 6.
router#show modem operational-status 2/6
Dynamic Link info for modem 2/6:
    4 signal quality (range 0-7 or worst-best)
    37 dB signal-to-noise ratio -15 dBm rx signal level
    0 Hz phase jitter freq, 0 degrees phase jitter level
    -30 dBm far end echo level, 0 degrees phase roll
    7 retrains and/or speed shifts, 4504 ec retransmissions
    2408144 chars tx, 616067 chars rx, 0 chars rx bad
    9292 ppp packets tx, 7928 ppp packets rx, 0 ppp packets rx bad
    15436 ec packets tx, 27126 ec packets rx, 4633 ec packets rx bad 
describes the fields in the previous display.

Table 13 Show Modem Configuration Field Descriptions for MICA Modems

Field

Description

Dynamic Link info for modem

Describing the information to be displayed about specified modem.

signal quality

Signal quality value, expressed as a value 0 to 7 where 7 is the worst.

signal-to-noise ratio

Signal-to-noise ratio from 0 to 70 in dB steps.

Rx signal level

Receive level from 0 to -128 in dBm steps.

Hz phase jitter freq

Phase jitter frequency +/-32 in 1/8 Hz steps.

degrees phase jitter level

Phase jitter level from 0 to 90 degrees.

far end echo level

Far end echo level from 0 to- 90 in dBm. This is the part of the transmitted analog signal tat has bounced off of the remote modem's analog front end.

degree phase roll

Phase roll +/-32 in 1/8 Hz steps.

retrains and/or speed shifts

Count of total retrains.

ec retransmissions

Count of total error correction retransmission that occurred during the duration of the link.

char tx

Number of characters transmitted.

char rx

Number of characters received.

char rx bad

Number of characters received with parity error.

ppp packets tx

Number of PPP packets transmitted.

ppp packets rx

Number of PPP packets received.

ppp packets rx bad

Number of defective PPP packets received.

ec packets tx

Number of error correction frames transmitted.

ec packets rx

Number of error correction frames received.

ec packets rx bad

Total count of the bad or aborted error correction packets.

Related Commands

show modem
show modem call-stats
show modem configuration
show modem csm
show modem group
show modem log
show modem summary
show modem version

show modem summary

To display call summary information for MICA digital modems, use the show modem summary EXEC command.

show modem summary

Syntax Description

This command has no arguments or keywords.

Command Mode

User and Privileged EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.3(2)T.

This command displays a summary of call statistics for all modems in the access server.

Sample Displays

The following example shows the additional information displayed when you enter the show modem summary command. The example below only shows the information displayed for one modem; when you issue this command, information will be displayed for all modems in the access server.
router#show modem summary
         Incoming calls       Outgoing calls      Busied   Failed   No    Succ
Usage  Succ   Fail  Avail   Succ   Fail  Avail    Out      Dial     Ans   Pct.
  25%   409     10     22    581     19     22       10        2     0     97%
Mdm  Typ    Status     Tx/Rx     G  Duration  TX  RX  RTS  CTS  DSR  DCD  DTR
2/0  V34bis Idle    28800/26400  1  00:00:16   -   -             x          
Modem 2/0 [line 65], Async65, TTY65
MICA-6DM Firmware: CP ver 2218 - 15/7/52768, SP ver 2218 - 2/9/1998.
Modem config: Incoming and Outgoing
Protocol: LAPM, Compression: V42bis
  Last clearing of "show modem" counters: never
    5 incoming completes, 0 incoming failures
    0 outgoing completes, 6 outgoing failures
    1 failed dial attempts, 0 ring no answers, 0 busied outs
    0 no dial tones, 0 dial timeouts, 0 watchdog timeouts
    0 no carriers, 0 link failures, 0 resets, 0 recover oob
    0 protocol timeouts, 0 protocol errors, 0 lost events
    0 TDM errors, 4 speed shifts (up/dn - 4/0), 5 retrains (hi/lo - 1/2)
Transmit Speed Counters:
Connection Speeds         75      300      600     1200     2400     4800
# of connections           0        0        0        0        0        0
Connection Speeds       7200     9600    12000    14400    16800    19200
# of connections           0        0        0        0        0        0
Connection Speeds      21600    24000    26400    28800    31200    32000
# of connections           1        0        2        1        1        0
Connection Speeds      33600    34000    36000    38000    40000    42000
# of connections           0        0        0        0        0        0
Connection Speeds      44000    46000    48000    50000    52000    54000
# of connections           0        0        0        0        0        0
Connection Speeds      56000
# of connections           0
Receive Speed Counters:
Connection Speeds         75      300      600     1200     2400     4800
# of connections           0        0        0        0        0        0
Connection Speeds       7200     9600    12000    14400    16800    19200
# of connections           0        0        0        0        0        1
Connection Speeds      21600    24000    26400    28800    31200    32000
# of connections           0        0        0        1        0        0
Connection Speeds      33600    34000    36000    38000    40000    42000
# of connections           2        0        0        0        0        1
Connection Speeds      44000    46000    48000    50000    52000    54000
# of connections           0        0        0        0        0        0
Connection Speeds      56000
# of connections           0
describes the fields in the previous display.

Table 14 Show Modem Group Field Descriptions for MICA Modems

Field

Description

Grp

Group number.

Usage

Average percentage of time that a modem is busy or in use.

Incoming calls Succ

Number of all incoming call completions for all modems in the group.

Incoming calls Fail

Number of all incoming call failures for all modems in the group.

Incoming calls Avail

Number of modems currently available to receive an incoming call.

Outgoing calls Succ

Number of all outgoing call completions for all modems in the group.

Outgoing calls Fail

Number of all outgoing call failures for all modems in the group.

Outgoing calls Avail

Number of modems currently available that could place an outgoing call.

Busied Out

Total number of times that the modem has been taken out of service with the modem busyout command.

Failed Dial

Total number of times that a B-channel failed to be established during dial-out.

No Ans

Number of outgoing call failures where the remote end did not respond for all modems in the group.

Succ Pct

Percentage of successful call completion for all modems in the group.

Modem Group

Number designating this modem group.
Table 15 Detailed Show Modem Group Field Descriptions for MICA Modems
Field

Description

Mdm

Slot and modem number.

Typ

Modulation type, which can be any of the following values: Bel103, Bel212, V21, V22, V22bis, V23, V32, V32bis, VFC, V34, V17, V27, V33 and K56Flx.

Status

Current status of the modem. Possible values include:

•Conn—Modem is connected to a remote host.

•B—Inoperable state, which is configured by the modem bad command.

•B*—Inoperable state, which is configured by the modem startup-test command during initial power-up testing.

•b—Modem is busied out. This can be manually configured by the modem busyout line configuration command.

•Reset—Modem is in reset mode.

•D/L—Modem is downloading firmware.

•Bad FW—Downloaded modem firmware is not operational.

•Busy—Modem is out of service and not available for calls.

•Idle—Modem is ready for incoming and outgoing calls.

Tx/Rx

Transmission and receiving speed for the most recently connected call.

G

Modem group number assigned to the modem. The group number 0 means the modem is not part of any group.

Duration

Time duration of the current call or the last call.

Modem Functions

The following modem functions are displayed on manageable modems. A field that is available and turned on is marked with an x. An unavailable field is marked with a dash (-).

•TX—Transmit Data. The DTE transmits data to the DCE.

•RX—Receive Data. The DCE receives data from the DTE.

•RTS—Request To Send. The DTE signals to the DCE that the DTE accepts data into its buffers.

•CTS—Clear To Send. The DCE signals to the DTE that the DCE accepts data into its buffers.

•DSR—Data Set Ready. The modem is ready to start communication.

•DCD—Data Carrier Detect. The DCE indicates to the DTE that a call is present and established with a remote modem. Dropping the DCD function terminates the session.

•DTR—Data Terminal Ready. The DTE indicates to the DCE that it accepts calls.

Modem

Identifies the slot/port and interfaces associated with this modem.

MICA-6DM Firmware

Installed firmware on this modem.

Modem config:

Indicates the type of traffic this modem is configured for Outgoing, Incoming, or Incoming and Outgoing.

Protocol:

Protocol the modem is running such as Normal, Direct, reliable/MNP4, and reliable/LAPM (Link Access Procedure for Modems).

Compression:

Compression algorithm running on the modem, such as None, V42bis, and MNP5.

Last clearing of "show modem" counters:

Last time the modem's counters were cleared using the clear modem counters command. A summary of modem events also appears.

•Incoming completes and failures—Total number of incoming connection requests that the modem answered and successfully or unsuccessfully connected with the remote DCE.

•Outgoing completes and failures—Total number of outgoing connection requests that the modem dialed and successfully or unsuccessfully connected with the remote DCE.

•Failed dial attempts—Number of times the modem attempted to dial out but the call failed to leave the modem.

•Ring no answers—Number of times the integrated modem detected ringing but did not answer the incoming call.

•Busied outs—Number of times the integrated modem was intentionally taken out of service (for example, the modem busyout command was enabled on the modem).

•No dial tones—Number of times the dial-out attempt failed because the modem failed to detect a dial tone.

•Dial timeouts—Number of times the modem has timed out while attempting to dial.

•Watchdog timeouts—Number of times the modem internal watchdog timer has expired.

•No carriers—Number of times the modem disconnected because no carrier was present.

•Link failures—Number of times the modem has detected a link failure.

•Resets—Number of times the modem has been reset.

•recover oob—Number of times the out-of-band feature has been cleared and re-initialized.

•Protocol timeouts and errors—Number of times the modem protocol failed to make a call connection.

•Lost events—Number of incomplete modem events performed by the modem.

TDM errors

Number of times the digital modem network module experiences a TDM error, meaning that some PCM samples were lost and were never delivered to the modem. This may be seen if multiple T1/E1 interfaces are used that do not share the same clock source.

speed shifts

Number of times this modem has recorded a speed shift. A summary of events are

•up—Number of times the modem shifted to higher speed.

•dn—Number of times the modem shifted to a lower speed.

It is possible for the modem to enter the speed shift state without actually changing the connect speed.

retrains

Number of times this modem has retrained. A summary of events are:

•hi—Number of times that the retraining resulted in a higher connect speed.

•lo—Number of times the retraining resulted in a lower connect speed.

Transmit Speed Counters Connection Speeds

List of connection speeds that were transmitted by the modem.
# of connections
A complete summary of possible connection speeds and the actual number of connections that occurred at those speeds.

Depending on which modem port module and version of software you are running, possible connection speeds range from 75 to 56,000 bps. The number of successful connections are displayed directly beneath the connection speed identifier. For example, the following output shows that three connections were made at 56 kbps.
Connection Speeds 56000 
# of connections 3
Receive Speed Counters Connection Speeds

List of connection speeds that were received by the modem.
# of connections
A complete summary of possible connection speeds and the actual number of connections that occurred at those speeds.

Depending on which modem port module and version of software you are running, possible connection speeds range from 75 to 56,000 bps. The number of successful connections are displayed directly beneath the connection speed identifier. For example, the following output shows that three connections were made at 56 kbps.
Connection Speeds 56000 
# of connections 3
Related Commands

show modem
show modem call-stats
show modem configuration
show modem csm
show modem group
show modem log
show modem operational-status
show modem summary
show modem version

show modem version

To display version information about the modem firmware, controller and DSP code (for 56K modems only), and boot code, use the show modem version EXEC command:

show modem version

Syntax Description

This command has no arguments or keywords.

Command Mode

User and Privileged EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2.

This command displays hardware and software information about each digital modem network module.This command is very useful for verifying the version of modem firmware running on the system after a modem firmware upgrade.

Sample Displays

The following example shows information displayed when you issue the show modem version command.
router#show modem version
Slot 2:MICA-6DM Firmware, Source - slot0:1:c3600-mica.2017
CP ver 2017 - 9/29/1997, CheckSum 84E088C5.
SP ver 2017 - 9/29/1997.
 MICA 0: HW Version 1.0, Serial Number 5433187.
 MICA 1: HW Version 1.0, Serial Number 5433232.
describes the fields in the previous display.

Table 16 Show Modem Version Field Descriptions for MICA Modems

Field

Description

Slot number

Slot where the VFC is installed.

Firmware

Name of the portware image currently loaded.

Source

Source of the portware image. Example output shows portware being loaded from the PCMCIA slot 0.

CP ver

Version of Control Processor code included in this portware.

Checksum

Checksum associated with the Control Processor code in this portware.

SP ver

Version of Signal Processor code included in this portware.

MICA

MICA SIMM installed on the network module, including the hardware version and serial number of each SIMM shown.

Related Commands

show modem
show modem call-stats
show modem configuration
show modem csm
show modem group
show modem log
modem operational-status
show modem summary

Hierarchical Navigation

Cisco IOS Software Releases 11.3

Digital Modem Network Module for the Cisco 3640

Downloads

Table Of Contents

Digital Modem Network Module for the Cisco 3640

Feature Summary

Benefits

List of Terms

Platforms

Prerequisites

Supported MIBs and RFCs

Configuration Tasks

Configure the E1/T1 Network Module for ISDN PRI

Configure Channelized E1 ISDN PRI

Configure Channelized T1 ISDN PRI

Configure the ISDN D-Channel Serial Interfaces

Configure the ISDN D-Channel Serial Interface for E1 Modules

Configure the ISDN D-Channel Serial Interface for T1 Modules

Configure the Loopback Interface

Configure the LAN Interface

Create the Group Asynchronous Interface

Configure the ISDN Dialer Interface

Configure the Default IP Pool Information

Configure Modem Lines for Dial-In and Dial-Out

Configure the Modem for Dial-In

Configure the Modem for Dial-Out

Configuration Example

Cisco 3640 Central Site Configuration to Support ISDN and Modem Calls

Command Reference

clear modem

Syntax Description

Default

Command Mode

Usage Guidelines

Examples

Related Commands

clear modem log

Syntax Description

Default

Command Mode

Usage Guidelines

Examples

Related Commands

isdn incoming-voice

Syntax Description

Default

Command Mode

Usage Guidelines

Examples

Related Commands

modem bad

Syntax Description

Default

Command Mode

Usage Guidelines

Example

Related Commands

modem buffer-size

Syntax Description

Default

Command Mode

Usage Guidelines

Example

Related Commands

modem country mica

Syntax Description

Default

Command Mode

Usage Guideline

Example

Related Commands

modem shutdown

Syntax Description

Default

Command Mode

Usage Guidelines

Example

Related Commands

show controllers async