Field Notice: FN - 63343 - PCEX-3G-HSPA-R6 Modem not Recognized in Cisco IOS 15.1(1)T of Cisco 880G Series Router - Software Upgrade Recommended

Notice

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.

Revision History

Revision	Publish Date	Comments
1.0	09-Jul-10	Initial Release
10.0	09-Oct-17	Migration to new field notice system
10.1	22-May-18	Fixed Broken Image Link

Products Affected

Affected Product ID	Comments
CISCO881G-G-K9
CISCO881GW-GN-A-K9
CISCO886G-K9
CISCO886GW-GN-E-K9
CISCO887G-K9
CISCO887GW-GN-A-K9
CISCO887GW-GN-E-K9
CISCO887VG-K9
CISCO887VGW-GNA-K9
CISCO887VGW-GNE-K9
CISCO888G-K9
CISCO888GW-GN-A-K9
PCEX-3G-HSPA-R6

Defect Information

Defect ID	Headline
CSCth51125	PCEX-3G-HSPA-R6 misprogrammed PRI

Problem Description

The product release instruction (PRI) programmed in the modem does not match the PRI accepted by Cisco IOS^®. This mismatch results in an unrecognized modem when it is installed into the 880G series routers.

This is a Cisco IOS problem on the 880G series routers, and Cisco bug ID CSCth51125 was created for this issue.

Background

Upon insertion of the PCEX-3G-HSPA-R6 modem into an 880G series router, the modem appears in the associated cellular interface CLI as "MODEM_NOT_RECOGNIZED" due to a bug (CSCth51125) in Cisco IOS.

This issue will happen 100% of the time when inserting this modem into an 880G series router that runs Cisco IOS 15.1(1)T.

This issue will be fixed in Cisco IOS 15.1(1)T1.

Problem Symptom

None of the PCEX-3G-HSPA-R6 modems will be recognized in the 880G series routers cellular interface due to invalid Cisco IOS PRI checking with mismatch program value.

Here is the output to look for when the router boots up with the modem installed:

Router>

*Jun 24 10:01:39.927: %CISCO800-2-MODEM_NOT_RECOGNIZED: Cellular0 modem not RECOGNIZED.

Carrier id not available or invalid! Replace it with Cisco supported modem and

reload the router.

*Jun 24 10:01:39.959: %CELL_MSG-1-MODEM_ACK_FAIL: [Cellular0] Modem Ack not received.

Router>

*Jun 24 10:14:10.107: %CELL_MSG-1-DMA_TX_FAILURE: HWIC cellular DMA transmit failure for

NM slot 0 HWIC slot 0, dma_q_type 1. Unable to send the packet.

Workaround/Solution

Workaround

In order to resolve the issue, the customer must contact TAC and upgrade the affected 880G series routers to a supported engineering build. Once the Cisco IOS 15.1(1)T1 is released on 7/16/2010, the 880G series router must then be upgraded to Cisco IOS 15.1(1)T1.

Note: Support for the engineering build will end once Cisco IOS 15.1(1)T1 is released.

Solution

Upgrade affected 880G series routers to Cisco IOS 15.1(1)T1 or later.

How To Identify Affected Products

All PCEX-3G-HSPA-R6 modems (part number: 74-6961-01) will exhibit this problem when inserted into routers identified by the product IDs listed below.

Refer to the image in order to identify the location of the product ID and part number on the affected modems.

CISCO881G-G-K9

CISCO888G-K9

CISCO887VG-K9

CISCO881GW-GN-A-K9

CISCO888GW-GN-A-K9

CISCO887VGW-GNA-K9

CISCO887VGW-GNE-K9

CISCO886G-K9

CISCO886GW-GN-E-K9

CISCO887G-K9

CISCO887GW-GN-A-K9

CISCO887GW-GN-E-K9

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

• Open a service request on Cisco.com
• By email
• By telephone

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