Table 1 Cisco 4G LTE NIM SKUs

Cisco 4G LTE NIM SKUs	Description	Mode	Operating Region	Band
NIM-4G-LTE-GA NIM-4G-LTE-GA= (Spare) NIM-4G-LTE-GA++= (TAA Spare)	Cisco LTE 2.0 4G NIM for global Wireless networks (Europe, Australia and so on). This SKU is based on Sierra Wireless MC7304 modem.	■LTE ■HSPA+/UMTS	Global	800 MHz, 900 MHz. 1800 MHz, 2100 MHz, 2600 MHz 850 MHz, 900 MHz, 1900 MHz, 2100 MHz
NIM-4G-LTE-NA NIM-4G-LTE-NA= (Spare) NIM-4G-LTE-NA++= (TAA Spare)	Cisco LTE 2.0 4G NIM for wireless networks in North America (AT& T and Canada). This SKU is based on Sierra Wireless MC7354 modem.	■LTE ■HSPA+, UMTS	North America (AT&T and Canada)	700 MHz. 1900 MHz, AWS 850 MHz, 900 MHz, 1900 MHz
NIM-4G-LTE-VZ NIM-4G-LTE-VZ= (Spare) NIM-4G-LTE-VZ++= (TAA Spare)	Cisco LTE 2.0 4G NIM for Verizon wireless networks. This SKU is based on Sierra Wireless MC7350 modem.	■LTE ■EVDO Rev-A/ 1xRTT	North America (Verizon)	AWS, 700 MHz 0, 1, 10
NIM-4G-LTE-ST NIM-4G-LTE-ST= (Spare) NIM-4G-LTE-ST++= (TAA Spare)	Cisco LTE 2.0 4G NIM for Sprint wireless networks. This SKU is based on Sierra Wireless MC7350 modem.	■LTE ■EVDO Rev-A/ 1xRTT	North America (Sprint)	PCS 1900 MHz 0, 1, 10
NIM-4G-LTE-LA	Cisco 4G LTE NIM module (LTE 2.5) for LATAM/APAC carriers. This SKU is based on Sierra Wireless MC7430 modem.	■LTE: FDD ■LTE: TDD ■DC-HSPA+, HSPA+, HSPA, UMTS ■TD-SCDMA	Latin America, Asia-Pacific	LTE bands 1, 3, 5, 7, 8, 18, 19, 21, 28, 38, 39, 40, and 41 FDD LTE 700 MHz (band 28), 850 MHz (band 5 CLR), 850 MHz (bands 18 and 19 Low), 900 MHz (band 8), 1500 MHz (band 21), 1800 MHz (band 3), 2100 MHz (band 1), or 2600 MHz (band 7) TDD LTE 1900 MHz (band 39), 2300 MHz (band 40), 2500 MHz (band 41), or 2600 MHz (band 38)
NIM-LTEA-LA	Cisco 4G LTE-Advanced NIM module (LTE3.0) for LATAM/APAC carriers. This SKU is based on Sierra Wireless EM7430 modem.	■LTE: FDD ■LTE: TDD ■DC-HSPA+,HSPA+, HSPA,UMTS	Latin America, Asia-Pacific	LTE bands 1, 3, 5, 7, 8, 18, 19, 21, 28, 38, 39, 40, and 41 FDD LTE 700 MHz (band 28), 850 MHz (band 5 CLR), 850 MHz (bands 18 and 19 Low), 900 MHz (band 8), 1500 MHz (band 21), 1800 MHz (band 3), 2100 MHz (band 1), or 2600 MHz (band 7) TDD LTE 1900 MHz (band 39), 2300 MHz (band 40), 2500 MHz (band 41), or 2600 MHz (band 38) Carrier aggregation band combinations: 1+(8,18,19,21); 3+(5,7,19,28); 7+(5,7,28); 19+21, 38+38, 39+39,40+40, and 41+41
NIM-LTEA-EA	Cisco 4G LTE-Advanced NIM module (LTE3.0) for EU/NA carriers. This SKU is based on Sierra Wireless EM7455 modem.	■LTE: FDD ■LTE: TDD ■DC-HSPA+,HSPA+, HSPA,UMTS	European Union, North America	LTE bands 1-5, 7, 12, 13, 20, 25, 26, 29, 30, and 41 FDD LTE 700 MHz (band 12), 700 MHz (band 29), 800 MHz (band 20), 850 MHz (band 5 CLR), 850 MHz (band 26 Low), 900 MHz (band 8), 1800 MHz (band 3), 1900 MHz (band 2), 1900 MHz (PCS band 25), 1700 MHz and 2100 MHz (band 4 AWS), 2100 MHz (band 1), 2300 MHz (band 30), or 2600 MHz (band 7) TDD LTE 2500 MHz (band 41) Carrier aggregation band combinations: 1+8; 2+(2,5,12,13,29); 3+(7,20); 4+(4,5,12,13,29); 7+(7,20); 12+30, 5+30, and 41+41

4G GPS and NMEA

Effective with Cisco IOS Release 15.3(3)M and later releases, the Global Positioning System (GPS) feature is enabled by default on the supported 4G LTE ISRs and Cisco 4G LTE NIMs to provide the geographical location. Both GPS and NMEA features must be configured for GPS coordinates to be obtained.

Active GPS is supported on the SubMiniature version A (SMA) port. Active GPS antenna is supported only in the standalone mode. An Active GPS antenna includes a built-in Low-Noise Amplifier that provides sufficient gain to overcome coaxial cable losses while providing the proper signal level to the GPS receiver. Active GPS antennae require power from the GPS receiver SMA port to operate. See the Example: Connecting to a Server Hosting a GPS Application for more information.

National Marine Electronics Association (NMEA) streams GPS data either from a 4G LTE NIM through a virtual COM port and a TCP/IP Ethernet connection to any marine device (such as a Windows-based PC) that runs a commercially available GPS-based application.

The following GPS and NMEA features are supported on the Cisco 4G LTE NIMs. Objects in the CISCO-WAN-3G-MIB supports GPS and NMEA features.

Note: Assisted GPS mode is not supported.

■GPS standalone mode (satellite-based GPS).

■Cisco IOS CLI display coordinates.

■Virtual and physical serial ports can export NMEA-formatted GPS data.

■External application displays router map location.

■The Cisco 4G LTE NIMs only support NMEA over IP.

For instructions on setting up the GPS antenna, see the Cisco 4G Indoor/Outdoor Active GPS Antenna (GPS-ACT-ANTM-SMA) document.

Example: Connecting to a Server Hosting a GPS Application

You can feed the NMEA data to a remote server that hosts the GPS application. The server can be connected to the router either directly using an Ethernet cable or through a LAN or WAN network. If the application supports serial port, run a serial port emulation program to create a virtual serial port over the LAN or WAN connection.

Note: Microsoft Streets & Trips is a licensed software that you can download from the Microsoft website.

To connect a Cisco 4G LTE NIM through IP to a PC running Microsoft Streets & Trips, perform the following steps:

1. Connect the PC to the router using an Ethernet cable.

2. Ensure that the PC and router can ping.

3. Launch the serial port redirector on the PC.

4. Create a virtual serial port that connects to the NMEA port on the router.

5. Launch Microsoft Streets & Trips on your PC.

6. Select the GPS Menu.

7. Click Start Tracking.

8. If you have acquired a location fix from the show cellular gps command output on the router, the current location is plotted on the graph, and a reddish brown dotted cursor with a circle around it is seen on the map.

Note: If you have not acquired a location fix, the Microsoft application times out and disconnects.

Dual SIM Card

Dual SIM card allows SIMs to be active in either slot. Dual SIM card is supported only on NIM-LTEA-LA (EM7430) and NIM-LTEA-EA (EM74550).

SIM card primary slot is selected when router boots up or when NIM reloads. The default slot is 0. If SIM card is not present in the primary slot, select the alternative slot if SIM card is present.

If the active SIM card loses connectivity to the network a failover to the alternative SIM card slot occurs.

Auto SIM

Auto-SIM is supported in Sierra wireless firmware Ver 02.20.03.

A new CLI is added in the cellular controller to enable/disable Auto-SIM.

The modem in Auto-SIM mode selects the right carrier firmware after a SIM slot switch and an automatic modem reset. Auto-SIM is supported on the MC7455, MC7430, EM7430, and EM7455 modems. During bootup, if the Auto-SIM configuration on the modem doesn’t match to the IOS configuration, the corresponding Auto-SIM or manual mode is pushed to the modem.

After an Auto-SIM configuration change, the modem is automatically reset. Once it is up, issue a modem power-cycle for auto-sim to take effect. The default is “auto-sim” enabled.

Enable Auto-SIM:

Note : After enabling auto-sim, wait for 5 minutes until the radio comes up. Once the radio is up, issue a modem power-cycle and wait for 3 minutes for the radio to come up again. Modem Power-Cycle is mandatory for auto-sim configuration to take effect.

Disable Auto-SIM:

Note : After disabling auto-sim, wait for 5 minutes until the radio comes up. Once the radio is up, issue a modem power-cycle and wait for 3 minutes for the radio to come up again. Modem Power-Cycle is mandatory for auto-sim configuration to take effect.

If Auto-SIM is disabled and the modem is in manual mode, select a carrier with a new exec CLI:

The following CLI shows the firmware-index of the carrier in the modem:

Dying-Gasp

Triggers

■Router power loss

■Module Reload

■Module stop or Router crash

Configuring Dying-Gasp

DETAILED STEPS

Short Message Service (SMS) Capabilities

Cisco 4G LTE NIMs support receiving, transmitting, archiving, and deleting of SMS messages. This support includes the ability to view up to 25 received texts, and archive more messages in a custom file location. SMS is supported on multiple carriers. Cisco 4G LTE NIMs also have the capability to revert from LTE SMS to 3G and 2G SMS technology if necessary.

A sending device behind a Cisco 4G LTE NIM transmits an SMS text message over the 4G cellular link through cellular towers until it the message reaches the recipient’s router, which then notifies the recipient device, such as a cell phone. The receiving device uses the same process to return a reply to the sending device. SMS Network describes the flow from a mobile device to a sending device. For SMS transmission to work, end users must have a text-capable device, and optionally, a text plan. If end users do not have a text plan, standard SMS rates apply to their text transmissions.

Figure 2 SMS Network

 

Using a SIM Card

Cisco 4G LTE NIMs needs an active SIM card provided by a service provider. The SIM cards are usually provided in an unlocked state so that it can be used without a Personal Identification Number (PIN). If the SIM is unlocked, it can be inserted into a 4G LTE NIM and used without an authorization code.

The SIM can be initially locked with a PIN code (4 to 8 digits s long) defined by the service provider. Contact your service provider for the PIN code.

The SIM-Lock feature allows a SIM to be locked or unlocked with a PIN code so that it is used only in an authorized device. Perform the SIM lock and unlock procedures using the Cisco IOS CLI through a console or Telnet/SSH to the ISR.

After the SIM is locked, it cannot initiate a call unless authentication is done using the same PIN. Authentication is done automatically by Cisco IOS through configuration of the PIN. This mandatory configuration for automatic SIM authentication is done using the Cisco IOS CLI as part of the router startup configuration.

After the Cisco IOS configuration is in place, the ISR can initiate an LTE connection. The ISR uses the configured PIN to authenticate prior to the LTE connection. If the Cisco IOS PIN configuration is missing or if the PIN is incorrect, the SIM authentication will fail and the connection will not be initiated.

If the locked SIM is moved to a different ISR or to another device, or if the 4G LTE NIM in which the locked SIM resides is moved to a different 4G LTE NIM slot in the same ISR, the ISR configuration should be changed. The configuration is associated with the cellular controller that is specific to an ISR 4G LTE NIM slot number. This will ensure that the SIM card will not be used in any unauthorized device, or, if there are multiple 4G LTE NIMs in a single ISR, that the appropriate PIN is applied to each 4G LTE SIM. An authentication command (with the same PIN used to lock the SIM) must be defined on the new device or on the new cellular controller slot to successfully initiate the LTE connection.

The following procedures are used to configure a SIM:

■Locking and Unlocking a SIM Card Using a PIN Code

■Applying a Modem Profile in a SIM Configuration

Caution: It is very important to use the correct PIN after it is configured. The SIM card will be blocked if the wrong PIN is entered three consecutive times on a locked SIM during authentication or when trying to unlock a locked SIM.

You can unblock a blocked SIM card using the PUK code. Contact your service provider for the PUK code.

Use the cellular < slot> lte sim unblock <PUK code> < new PIN code> command to unblock the SIM.

Data Account Provisioning

One or more modem data profiles can be created to provision a modem on a 4G LTE NIM. An active wireless account with a service provider with one or more (dual) SIM cards must be installed. The modem data profile is pre-configured on the modem.

The following tasks are used to verify the signal strength and service availability of the modem and to create, modify, and delete modem data profiles:

■Verifying Modem Signal Strength and Service Availability

■Guidelines for Creating, Modifying, or Deleting Modem Data Profiles

IP Multimedia Subsystem Profiles

IP Multimedia Subsystem (IMS) profiles establish a session, and are a part of the modem configuration and are stored in the modem's NVRAM. An IMS network is an access-independent and standard-based IP connectivity service that enables different types of multimedia services to end users using common Internet-based protocols. See Guidelines for Creating, Modifying, or Deleting Modem Data Profiles, for more information.

Cisco 4G LTE NIM LEDs

Cisco 4G LTE NIM-4G-LTE-LA (MC7430) LED Description describes the LED behavior in NIM-4G-LTE-LA (MC7430).

NIM-LTEA-LA (EM7430) and NIM-LTEA-EA (EM7455) LED Description describes the LED behavior in NIM-LTEA-LA (EM7430) and NIM-LTEA-EA (EM7455).

Verifying Modem Signal Strength and Service Availability

Note: For the Cisco 4G LTE NIM, the unit argument identifies the router slot, WIC slot, and port separated by slashes (0/1/0).

SUMMARY STEPS

1. show cellular unit network

2. show cellular unit radio

3. show cellular unit profile

4. show cellular unit security

5. show cellular unit all

DETAILED STEPS

Guidelines for Creating, Modifying, or Deleting Modem Data Profiles

You can create multiple profiles on Cisco 4G LTE NIMs. We support only 7300 based modems for the Cisco 4G LTE NIMs. The following are the default Internet profile numbers for some of the modems:

■EM7430 – Profile 1

■EM7455 (Verizon or Sprint) - Both Profile 1 and Profile 3

■EM7455 (AT&T or other SP's) – Profile 1

Follow these guidelines when you configure a data profile using exec mode or config mode:

■In most cases, you do not have to make any profile-related changes if your modem comes with a data profile, for instance, AT&T, Sprint and Verizon.

■If any profile parameter changes are required for a connection type, the changes will most likely be carried out in the default profiles.

■To configure different profile types and use them for a different connection, you can create separate profiles with different parameters (for instance, APN names). Note that only one profile is active at a given time.

■Use the show cellular <unit> profile command to view the data profile. An asterisk(*) symbol is displayed against the data profile. Double asterisk(**) symbol is displayed against the attach profile.

■The data profile is used to set up a data call. If you want to use a different profile, that profile needs to be made the default one. Use the lte sim data-profile number command to change the default profile under controller cellular 0/2/0.

For information on supported modems on each SKU, see Cisco 4G LTE NIM SKUs, Cisco 4G LTE NIM-4G-LTE-LA (MC7430) LED Description, NIM-LTEA-LA (EM7430) and NIM-LTEA-EA (EM7455) LED Description and Cisco 4G LTE NIM Modem SKUs.

Creating, Modifying, or Deleting Data Profiles Using EXEC Mode

Note: For the 4G LTE NIM, the unit argument identifies the router slot, WIC slot, and port separated by slashes (0/1/0).

SUMMARY STEPS

1. cellular unit lte profile [ create | delete ] profile-number [ apn [ authentication [ username password [ bearer-type ]]]]

DETAILED STEPS

Creating, Modifying, or Deleting Data Profiles Using Configuration Mode

Note: For the 4G LTE NIM, the unit argument identifies the router slot, WIC slot, and port separated by slashes (0/1/0).

SUMMARY STEPS

1. profile id id apn apn name [ authentication [ username password ] pdn-type [pdn-type [ no-overwrite ]]]]

DETAILED STEPS

Configuration Examples

The following example shows how to change a default profile on Cisco 4G LTE NIM:

The following example shows the output of the show cellular command:

The following example shows the output of the show cellular command before you enable the debug command:

The following example shows the output of the show cellular command after you enable the debug command:

 

Configuration Example

Example Configuration under Controller Cellular

router(config-controller)# profile id 1 apn apn_internet authentication none pdn-type ipv4 no-overwrite

Controller Cellular Running Configuration

Connection will be reset

Multiple PDN Contexts

This feature enables router to connect to multiple (currently two) packet data networks. This allows users to enable different features independently on each PDN. For instance, the first PDN can be used for public Internet access and the second one for VPN connectivity; each PDN has its own set of IP addresses and QoS characteristics.

During the initialization of the router, two cellular interfaces corresponding to the two PDNs are created:

cellular 0/x/0 and cellular 0/x/1

These interfaces can be viewed as two logical interfaces using the same radio resources.

Here onwards, the interface cellular 0/x/0 is referred as the first PDN, and cellular 0/x/1 as the second PDN.

The first step, in bringing up the two PDNs, is applying the configuration on both the cellular interfaces and their corresponding lines, in order to make two simultaneous data calls.

The next step is associating the data-bearer profile with its corresponding cellular interface or PDN. It is sufficient to associate the profile for just the first PDN under the controller cellular configuration. Note that the second PDN assumes a profile that is just one above the profile used for the first PDN. For example, if the first PDN uses profile 1, the second PDN uses profile 2 automatically when the call is initiated for the second one.

After the interesting traffic is routed through these cellular interfaces, data calls are initiated and each interface is assigned its own IP and DNS addresses provided by the cellular network. Note that both PDNs share radio resources. Therefore, any throughput measurement needs to take into account the aggregate throughput on both PDNs, instead of just one.

Configuration Examples

The following example shows how to configure multiple PDN on Cisco 4G LTE NIM:

The following show commands can be used to verify the status of the multiple PDN calls:

Configuring a SIM for Data Calls

■Locking and Unlocking a SIM Card Using a PIN Code

■Changing the PIN Code

■Verifying the Security Information of a Modem

■Configuring Automatic Authentication for a Locked SIM

■Configuring an Encrypted PIN for a SIM

■Applying a Modem Profile in a SIM Configuration

Locking and Unlocking a SIM Card Using a PIN Code

Perform this task to lock or unlock a SIM card given by your service provider.

Caution: The SIM card gets blocked if the wrong PIN is entered three consecutive times. Make sure you enter the correct PIN the SIM is configured with. If your SIM card gets blocked, contact your service provider for a PUK code. Using the PUK code, you can unblock the SIM card.

Note: For the Cisco 4G LTE NIM, the unit argument identifies the router slot, WIC slot, and port separated by slashes (0/1/0).

SUMMARY STEPS

1. cellular unit lte sim { lock | unlock } pin

DETAILED STEPS

Changing the PIN Code

Perform this task to change the PIN code of a SIM.

Note: For the 4G LTE NIM, the unit argument identifies the router slot, WIC slot, and port separated by slashes (0/1/0).

SUMMARY STEPS

1. cellular unit lte sim change-pin pin new-pin

DETAILED STEPS

Verifying the Security Information of a Modem

Perform this task to verify the security information of a modem.

Note: For the Cisco 4G LTE NIM, the unit argument identifies the router slot, WIC slot, and port separated by slashes (0/1/0).

SUMMARY STEPS

1. show cellular unit security

DETAILED STEPS

Configuring Automatic Authentication for a Locked SIM

An unencrypted PIN can be configured to activate the Card Holder Verification (CHV1) code that authenticates a modem.

Caution: The SIM card gets blocked if the wrong PIN is entered three consecutive times. Make sure you enter the correct PIN the SIM is configured with. If your SIM card gets blocked, contact your service provider for a PUK code.

Note: Follow these procedures when using an unencrypted Level 0 PIN to configure CHV1. For instructions on how to configure CHV1 using an encrypted Level 7 PIN, see the Configuring an Encrypted PIN for a SIM.

Note: A SIM should be locked for SIM authentication to work. To verify the SIM’s status, use the show cellular unit security command.

Note: For the 4G LTE NIM, the unit argument identifies the router slot, WIC slot, and port separated by slashes (0/1/0).

SUMMARY STEPS

1. configure terminal

2. controller cellular unit

3. lte sim authenticate 0 pin

DETAILED STEPS

Configuring an Encrypted PIN for a SIM

To configure an encrypted PIN, the scrambled value of the PIN must be obtained. To get the scrambled Level 7 PIN and to configure the SIM CHV1 code for verification using this encrypted PIN, enter the following commands in the EXEC mode.

Note: When obtaining the encrypted PIN for a SIM, a username and password are created by configuring password encryption, defining the username and associated password, copying the resulting scrambled password, and using this scrambled password in the SIM authentication command. After the scrambled PIN has been obtained and used in SIM authentication, the username created can be deleted from the Cisco IOS configuration.

Note: A SIM should be locked for SIM authentication to work. To verify the SIM’s status, use the show cellular unit security command.

Note: For the Cisco 4G LTE NIM, the unit argument identifies the router slot, WIC slot, and port separated by slashes (0/1/0).

SUMMARY STEPS

1. configure terminal

2. service password-encryption

3. username name privilege 0 password pin

4. do show run | i name

5. controller cellular unit

6. lte sim authenticate { 0 | 7 } pin

7. exit

8. no username name

9. no service password-encryption

DETAILED STEPS

Applying a Modem Profile in a SIM Configuration

SUMMARY STEPS

1. configure terminal

2. controller cellular unit

3. lte sim data-profile number attach-profile number

DETAILED STEPS

Data Call Setup

To set up a data call, use the following procedures:

■Configuring the Cellular Interface

■Configuring DDR

Data Call Setup with Cisco 4G LTE NIM shows a typical data call setup.

Figure 3 Data Call Setup with Cisco 4G LTE NIM

 

Configuring the Cellular Interface

To configure the cellular interface, enter the following commands starting in EXEC mode.

Note: For the Cisco 4G LTE NIM, the unit argument identifies the router slot, WIC slot, and port separated by slashes (0/1/0).

SUMMARY STEPS

1. configure terminal

2. interface cellular unit

3. ip address negotiated

4. dialer in-band

5. dialer-group group- number

6. exit

7. ip route network-number network-mask { ip-address | interface } [ administrative distance ] [ name name ]

8. dialer-list dialer-group protocol protocol-name { permit | deny | list access-list-number | access-group }

DETAILED STEPS

Note: If a tunnel interface is configured with ip unnumbered cellular 0/1/0, it is necessary to configure the actual static IP address under the cellular interface, in place of ip address negotiated.

Configuring DDR

To configure DDR for the cellular interface, enter the following commands starting in EXEC mode.

Note: For the Cisco 4G LTE NIM, the unit argument identifies the router slot, WIC slot, and port separated by slashes (0/1/0).

SUMMARY STEPS

1. configure terminal

2. interface cellular unit

3. ip address negotiated

4. dialer in-band

5. dialer pool-member number

6. ip address negotiated

7. dialer pool number

8. dialer idle-timeout seconds

9. dialer-group group- number

10. exit

11. dialer-list dialer-group protocol protocol-name {permit | deny | list access-list-number | access-group}

12. access-list access-list-number permit ip-source-address

DETAILED STEPS

Enabling 4G GPS and NMEA Data Streaming

GPS NMEA data streaming to external NMEA 2.0-compliant GPS plotter applications can be enabled on Cisco 4G LTE NIMs.

Note: For the Cisco 4G LTE NIM, the unit argument identifies the router slot, WIC slot, and the port, and is separated by slashes (0/1/0).

SUMMARY STEPS

1. configure terminal

2. controller cellular unit

3. (Optional) lte gps enable

4. lte gps mode standalone

5. lte gps nmea {ip | udp [ source address ][ destination address ][ destination port ]}
or
lte gps nmea

6. end

7. show cellular unit gps

8. show cellular unit gps detail

9. show running

DETAILED STEPS

Configuring 4G SMS Messaging

Note: In the context of an Cisco 4G LTE NIM, the unit argument identifies the router slot, WIC slot, and the port, and is separated by slashes (0/1/0).

SUMMARY STEPS

1. configure terminal

2. controller cellular unit

3. lte sms archive path FTP-URL

4. cellular unit lte sms view { all | ID | summary }

5. end

6. show cellular unit sms

7. cellular unit lte sms send number

8. cellular unit lte sms delete [ all | id ]

DETAILED STEPS

Configuring Modem DM Log Collection

Diagnostic Monitor (DM) is a Qualcomm proprietary protocol. Diagnostic software tools, such as Sierra Wireless SwiLog and Qualcomm QXDM, are based on DM protocol. These tools can be used to capture data transactions between the modem and the network over the RF interface, which makes them useful tools for troubleshooting 3G and 4G data connectivity or performance issues.

To configure DM log collection, enter the following commands, starting in privileged EXEC mode.

SUMMARY STEPS

1. configure terminal

2. controller cellular slot/wic

3. { lte } modem dm-log { enable | filesize size | filter location : filename | output path URL | rotation | size log-size }

4. end

5. show cellular unit logs dm-log

DETAILED STEPS

Example

The following example shows how to specify the maximum log file size for CDMA:

The following example shows how to specify the filter file for GSM:

The following example shows how to specify the path where the DM log output files will be stored for LTE:

The following example shows how to enable DM log rotation for CDMA:

The following example shows how to specify the maximum log size for GSM:

Enabling Modem Crashdump Collection

Modem crashdump collection is useful in debugging firmware crash. To collect crash data, the modem has to be pre-configured so that it will stay in memdump mode after a crash. Memdump mode is a special boot-and-hold mode for the memdump utility to collect crash data.

For earlier releases the crashdump collection required the PC to be connected to the router using a USB cable or a special RJ45-USB cable on a non-HSPA+7 3G HWIC.

As part of the 3G and 4G serviceability enhancement, the crashdump collection utility is integrated into Cisco IOS.

To enable modem crashdump collection, perform the following steps.

Note: The integrated modem crashdump collection feature is supported only on 3G HSPA and 4G LTE based SKUs.

Prerequisites

Ensure that the following prerequisites are met before attempting to enable crashdump logging:

■The modem needs to be provisioned for modem crashdump collection—it needs to be configured to operate in test mode. Contact Cisco TAC for details.

■The modem should be in crash state. Run tests that will result in modem firmware crash. A “MODEM_DOWN” message on the router console or syslog is indicative of modem firmware crash.

Note: After the modem firmware crashes, the modem is available for crashdump log collection only. Data calls cannot be made.

SUMMARY STEPS

1. test { cell-host | cell-cwan } unit modem-crashdump { on location | off }

DETAILED STEPS

Example

The following example shows how to disable crashdump log collection for NIM on a modular platform:

The following example shows how to enable crashdump log collection on a fixed platform with the logs stored on an FTP server:

Displaying Modem Log Error and Dump Information

As part of the 3G serviceability enhancement in Cisco IOS Release 15.2(4)M2 and Cisco IOS Release 15.3(1)T, AT commands strings ( at!err and at!gcdump) can be sent to the modem using Cisco IOS CLI rather than setting up a reverse telnet session to the cellular modem to obtain log error and dump information.

To obtain log error and dump information, perform the following steps.

Note: The modem log error and dump collection feature is supported only on 3G SKUs.

SUMMARY STEPS

1. show cellular unit log error

2. test cellular unit modem-error-clear

DETAILED STEPS

Configuration Examples for Cisco 4G LTE NIM

The following example shows how to configure Cisco 4G LTE NIM:

Verifying the Cisco 4G LTE NIM Configuration

You can verify the configuration by using the following show commands:

■show version

■show platform

■show interfaces

show version

show platform

show interfaces

Example: Sample Output for the show cellular logs dm-log Command

The following shows a sample output of the show cellular logs dm-log command:

Example: Sample Output for the show cellular logs modem-crashdump Command

The following shows a sample output of the show cellular logs modem-crashdump command:

Example: Basic Cellular Interface Configuration: Cisco 4G LTE NIM

The following example shows how to configure the cellular interface to be used as a primary and is configured as the default route:

Example: GRE Tunnel over Cellular Interface Configuration

The following example shows how to configure the static IP address when a GRE tunnel interface is configured with ip address unnumbered cellular interface :

Note: The GRE tunnel configuration is supported only if the service providers provide a public IP address on the LTE interface.

Note: For service providers using a private IP address, the point-to-point static GRE tunnel cannot be set up with a private IP address at one end and a public IP address on the other end.

Example: Cisco 4G LTE NIM as Backup with NAT and IPSec

The following example shows how to configure the Cisco 4G LTE NIM on the router as backup with NAT and IPSec:

Note: The receive and transmit speeds cannot be configured. The actual throughput depends on the cellular network service.

Note: For service providers using a private IP address, use the crypto ipsec transform-set esp command (that is, esp-aes esp-sha256-hmac…).

Example: SIM Configuration

This section provides the following configuration examples:

■Locking the SIM Card

■Unlocking the SIM Card

■Automatic SIM Authentication

■Changing the PIN Code

■Configuring an Encrypted PIN

Locking the SIM Card

The following example shows how to lock the SIM. The italicized text in this configuration example is used to indicate comments and are not be seen when a normal console output is viewed.

Unlocking the SIM Card

The following example shows how to unlock the SIM. The italicized text throughout this configuration example is used to indicate comments and will not be seen when a normal console output is viewed.

Automatic SIM Authentication

The following example shows how to configure automatic SIM authentication. The italicized text throughout this configuration example is used to indicate comments and will not be seen when a normal console output is viewed.

Changing the PIN Code

The following example shows how to change the assigned PIN code. The italicized text throughout this configuration example is used to indicate comments and will not be seen when a normal console output is viewed.

Configuring an Encrypted PIN

The following example shows how to configure automatic SIM authentication using an encrypted PIN. The italicized text throughout this configuration example is used to indicate comments and will not be seen when a normal console output is viewed.

Table 4 Cisco 4G LTE NIM Modem SKUs

SKU	Modem
■NIM-4G-LTE-VZ	MC7350
■NIM-4G-LTE-ST	MC7350
■NIM-4G-LTE-NA	MC7354
■NIM-4G-LTE-GA	MC7304
■NIM-4G-LTE-LA	MC7430
■NIM-LTEA-LA	EM7430
■NIM-LTEA-EA	EM7455

Upgrading the Modem Firmware Manually

Cisco recommends the manual upgrade process for the LTE modem firmware and IOS software image for all new deployments and the following existing deployments:

■LTE is not the primary ISR WAN interface.

■LTE is not the only ISR WAN interface.

■The network administrator has out-of-band or local access to the ISR.

Note: You can also remotely download firmware over the air by following the same steps listed below.

SUMMARY STEPS

1. Go to the following Cisco web page to download the latest certified firmware for your carrier:

http://software.cisco.com/download/navigator.html

For remote download, you can transfer this using the 4G wireless link from Cisco.com onto flash.

2. On this page, select from the following options.
Products -> Cisco Interfaces and Modules -> Cisco High-Speed WAN Interface Cards

3. After clicking on the Cisco High-Speed WAN interface Cards selection, a list of available cards displays in the third column as shown in Cisco Download Software Web Page. Select your product in the third column and download the appropriate LTE firmware.

Figure 4 Cisco Download Software Web Page

 

4. Enable the logging console.

5. Initiate the firmware upgrade process.

Note: For remote downloads, if wireless is your primary link, you will lose connectivity. Connectivity is restored after the download. If you have opted for logging in, the firmware log file will be available on flash with the download status.

6. Verify the upgrade process.

7. Reload the ISR to complete the upgrade process.

DETAILED STEPS

MC7350 Manual Modem Firmware Upgrade: Example

Configuring dm-log to Utility Flash: Example