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|Affected OS Type||Affected Software Product||Affected Release||Affected Release Number||Comments|
|CSCva51691||Standby card cdman mem leak on "docsis cm chunk"|
There is the potential for a cBR-8 protect line card reload due to a cdman (Cable Device Manager) memory leak.
Line cards are:
A cable modem intermittent connectivity issue (flapping) might lead to a cdman memory leak on the cBR-8 protect line card. This issue is specific to cBR-8 Cisco IOS XE Software Release 3.18.0S while there is a line card redundancy in place.
These repeated alarms are observed in the logs triggered by the cBR-8 protect line card:
> Jul 3 23:30:03.775 EDT: %IOSXE-3-PLATFORM: CLC0: cdman: CDMINFRA CDM_PT_MEMORY_TEST SANITY TEST FAILED
> Jul 3 23:31:03.775 EDT: %IOSXE-3-PLATFORM: CLC0: cdman: CDMINFRA CDM_PT_MEMORY_TEST SANITY TEST FAILED
> Jul 3 23:32:03.775 EDT: %IOSXE-3-PLATFORM: CLC0: cdman: CDMINFRA CDM_PT_MEMORY_TEST SANITY TEST FAILED
Cisco recommends that customers upgrade to Cisco IOS XE 3.18.0SP or a later release which contains the fix. Refer to this table for more information:
|cBR-8 Cisco IOS XE Release||Does Issue Exist?||Action|
|3.18.0S||Yes||Upgrade to 3.18.0SP or later release|
|3.18.0SP or later release||No||None|
In order to avoid this issue in the interim, Cisco suggests to reload the protect line card if the alarm mentioned in the Problem Symptoms section is observed in the logs.
How to Upgrade Software
Refer to Upgrading the Cisco cBR-8 Router Firmware for instructions on how to upgrade the cBR-8 Cisco IOS XE Release.
Cisco IOS Versions Affected
This issue is specific to cBR-8 Cisco IOS XE release: 3.18.0S while there is a line card redundancy in place.
How to Identify the Cisco IOS XE Software Version
In order to determine the current software version that runs on the cBR-8 router, enter the sh version command as shown in this example:
The hardware information can be determined as indicated in this picture:
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:
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