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Table Of Contents
Release Notes for Cisco 819 4G LTE M2M Gateway Integrated Services Routers
Summary of Changes Between Cisco IOS Release 15.2(4)M2 to Cisco IOS Release 15.2(4)M3
New Software Features in Release 15.2(4)M3
Open Caveats—Release 15.2(4)M3
Resolved Caveats—Release 15.2(4)M3
Obtaining Documentation and Submitting a Service Request
Release Notes for Cisco 819 4G LTE M2M Gateway Integrated Services Routers
Published: October 24, 2012,
Last Updated: April 23, 2013
OL-27801-01This Release Notes document describes the Cisco® 819G and 819HG Fourth-Generation Long-Term Evolution (4G LTE) Integrated Services Routers (ISRs). This document should be used with the documents listed in the "Related Documentation" section.
This document is updated as needed. To ensure that you have the latest version of the Release Notes document, go to http://www.cisco.com/en/US/partner/products/hw/routers/ps380/tsd_products_support_series_home.html. Choose Release and General Information > Release Notes, and locate the latest release notes pertaining to your release.
Contents
This document contains the following sections:
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Summary of Changes Between Cisco IOS Release 15.2(4)M2 to Cisco IOS Release 15.2(4)M3
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Introduction
In Cisco IOS Release 15.2(4)M3, the multimode 4G LTE feature is supported on the Cisco 819 ISRs. The Cisco 819HG-4G and Cisco 819G-4G routers have the Sierra Wireless multimode modem embedded in them and support 4G LTE and 3G cellular networks.
Summary of Changes Between Cisco IOS Release 15.2(4)M2 to Cisco IOS Release 15.2(4)M3
Cisco IOS Release 15.2(4)M3 contains numerous improvements over the Cisco IOS Release 15.2(4)M2.
In the context of the Cisco IOS Release 15.2(4)M3 image, the external link recovery script is not required. Ensure that the link recovery script is removed from Flash before upgrading to Cisco IOS Release 15.2(4)M3, which also contains an embedded modem link recover mechanism that eliminates the need for link recovery scripts. Ensure that the cell_recovery_vx.tcl and cel_cli_vx.tcl scripts are removed from router flash, where x stands for the script version number that is in use, for example, cell_recovery_v2.tcl and cel_cli_v2.tcl.
The Cisco IOS Release 15.2(4)M3 image also requires a mandatory upgrade to the latest versions of modem firmware. The new modem firmware versions contain significant modem stability enhancements. Cisco IOS Release 15.2(4)M3 should not be installed without upgrading the LTE eHWIC modem firmware to the appropriate 3.x release. The following are the new firmware versions supported on the LTE SKUs in Cisco IOS Release 15.2(4)M3:
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Cisco IOS Release 15.2(4)M3 also includes an upgrade to a newer and more stable version of vendor-provided SDK Version 1.8.0 that provides support for the new modem firmware.
The modem firmware files and the associated documentation for upgrading the modems are available at the following locations:
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System Requirements
This section contains the following parts:
Memory Requirements
Cisco 819 4G LTE ISRs with Cisco IOS Release 15.2(4)M3 have 1 GB DRAM and 1 GB compact flash support in IDE mode (internal).
Hardware Supported
Table 1 shows the SKUs by mode, operating region, and frequency band for Cisco 819 4G LTE ISRs.
Table 2 shows the antennas supported for Cisco 819 4G LTE ISRs.
Note
Table 3 shows the cables and accessories supported in Cisco 819 4G LTE ISRs.
Software Compatibility
For ISRs with EHWIC-4G-LTE-V and C819(H)G-4G-V-K/9, the use of Cisco IOS Release 15.2(4)M3 requires LTE modem firmware 3.5.10.6.
Note
Cisco IOS Release 15.2(4)M3 includes Verizon Wireless LTE modem drivers that operate with the latest MC7750 LTE modem firmware. Due to backward compatibility issues with the existing LTE modem firmware (1.0.9.3), Cisco IOS Release 15.2(4)M3 should be used only after upgrading the existing LTE modem firmware to the Release 3.5.10.6, or with the new EHWIC-4G-LTE-V and C819(H)G-4G-V-K/9 units with firmware 3.5.10.6 factory loaded.
Check the LTE modem firmware using the Cisco IOS command show cellular 0/x/0 hardware (for EHWIC-4G-LTE-V, with x being the EHWIC slot number) or the show cellular 0 hardware command (for C819(H)G-4G-V).
The latest certified firmware version for your carrier having Cisco IOS compatibility is available at http://www.cisco.com/en/US/prod/collateral/modules/ps5949/ps7272/datasheet_c78-710314.html.
Platforms
The multimode 4G LTE feature is supported on the hardened and nonhardened versions of the Cisco 819 ISRs with Cisco IOS Release 15.2(4)M3 or later.
Table 4 lists the SKUs supported on the Cisco 819 4G LTE ISRs.
Feature Set Tables
Use Cisco Feature Navigator to find information about platform support and software image support. Cisco Feature Navigator enables you to determine which software images support a specific software release, feature set, or platform. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.
Table 5 lists the feature information for Cisco 819 4G LTE ISRs.
New Software Features in Release 15.2(4)M3
The following new features are supported on the Cisco 819 4G LTE fixed platforms with Cisco IOS Release 15.2(4)M3:
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Limitations and Restrictions
The following limitations and restrictions apply to Cisco 819 4G LTE ISRs with Cisco IOS Release 15.2(4)M3:
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Caveats
This section lists the open and resolved caveats for Cisco IOS Release 15.2(4)M3 release:
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Open Caveats—Release 15.2(4)M3
The following are the open caveats for Cisco IOS Release 15.2(4)M3:
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Modem Type: All LTE modems
Symptom: Modem becomes unresponsive.
Condition: This symptom is observed when a small packet traffic (64 B) goes downlink at the rate of 35 Mb/s.
Workaround: In the context of small packet traffic (64 B), lower the downlink rate to 25 Mb/s.
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Modem Type: AT&T
Symptom: The MC7700 modem fails to ping to the network.
Condition: This symptom is observed in the context of pings when a packet size of 1045 B or greater is present and has the Access Point Name (APN) set to Broadband.
Workaround: Use packet size of 1044 B or smaller.
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Modem Type: Verizon
Symptom: If the cellular interface is power cycled or reset, the IMSI value is displayed as 0000. This is a display issue and does not affect the performance of the cellular interface in any way.
Condition: This symptom is observed when cellular interface is power cycled or reset.
Workaround: Reload the router. This issue is fixed in Release 15.3(3)M.
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Modem Type: Verizon
Symptom: Even after saving the Release 15.2(4)M-specific configuration changes, the values fall back to default after a reload.
Condition: Edit the dm log capture parameters, such as fliesize and rotation, under controller cellular 0/x. Save the running configuration and reload. After reload, the configured values go back to default.
Workaround: This issue is fixed in Release 15.3(3)M.
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Modem Type: Verizon
Symptom: Clears the counters without clearing the input drops field in the show cellular 0/0/0 logs dm-log command output.
Condition: After issuing the clear counters cellular x/x/x command, the counters in the show cellular x/x/x logs dm-logs command output are not cleared.
Workaround: This issue is fixed in Release Release 15.3(3)M.
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Modem Type: Verizon
Symptom: OTA-DM fails.
Condition: After the cellular interface is up on the LTE network and you try changing the profile using the cellular x/x/x lte profile create (profile_number) (APN name) command. Due to this issue, OTA DM is unable to change the profile name to its actual name.
Workaround: Configure the profile manually using the following command:
1900#cellular 0/0/0 lte profile create 1 <Word Access Point Name>
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Modem Type: All LTE modems
Symptom: Modem firmware upgrade is unsuccessful or upgrade indication from modem to IOS is not received.
Condition: Upgrading the modem firmware fails while executing microcode reload cellular modem-provision command.
Workaround: Use the firmware upgrade procedure documented in `Software Compatibility' section of Release Notes for Cisco 4G LTE WWAN EHWICs at http://www.cisco.com/en/US/docs/routers/access/interfaces/Release/Notes/RN_MM4G3GWAN.html
Resolved Caveats—Release 15.2(4)M3
Table 6 lists the resolved caveats for Cisco 819 4G LTE ISRs with Cisco IOS Release 15.2(4)M3.
Related Documentation
The following section describes the documentation available for Cisco 819 4G LTE ISRs with Cisco IOS Release 15.2(4)M3.
The following documentation is available as printed manuals or electronic documents which are available online on cisco.com:
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Provides instructions for hardware installation of the Cisco 819 4G LTE ISRs.
http://www.cisco.com/en/US/docs/routers/access/800/819/hardware/install/guide/819hwinst.html
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Provides instructions for configuring Cisco 819 4G LTE ISRs.
http://www.cisco.com/en/US/docs/routers/access/800/819/software/configuration/Guide/819_SCG.html
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
Subscribe to the What's New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service. Cisco currently supports RSS Version 2.0.
This document is to be used in conjunction with the documents listed in the Related Documentation section.
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