%FIB-3-NOMEM: Malloc Failure, disabling CEF,

Unanswered Question
Jul 17th, 2008
User Badges:

My router is restarting with the following error

%FIB-3-NOMEM: Malloc Failure, disabling CEF,

-Traceback= 0x154BD60 0x10519A0

HW details NGP G2


MPLS BGP is running this is PE router

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Goutam Sanyal Thu, 07/17/2008 - 21:12
User Badges:
  • Silver, 250 points or more


As per Cisco:

A memory shortage has caused an internal software error. CEF switching has been disabled on the specified slot.

Recommended Action: Enter the clear cef linecard slot command. Next, check the status of the line card by entering the show cef linecard command. If this message recurs, copy the message exactly as it appears on the console or in the system log. Research and attempt to resolve the issue using the tools and utilities provided at http://www.cisco.com/tac. With some messages, these tools and utilities will supply clarifying information. Search for resolved software issues using the Bug Toolkit at http://tools.cisco.com/Support/BugToolKit/action.do?hdnAction=searchBugs. If you still require assistance, open a case with the Technical Assistance Center via the Internet at http://www.cisco.com/cgi-bin/front.x/case_tools/caseOpen.pl, or contact your Cisco technical support representative and provide the representative with the information you have gathered. Attach the following information to your case in nonzipped, plain-text (.txt) format: the output of the show logging and show tech-support commands and your pertinent troubleshooting logs. chnical support representative, and provide the representative with the information you have gathered.

You can visit the bellow CEF-Related Error Messages for troubleshooting,




[Pls rate if it helps you]

a.alekseev Thu, 07/17/2008 - 22:45
User Badges:
  • Gold, 750 points or more

sh mem

Probably, you have a memory leak.

paolo bevilacqua Fri, 07/18/2008 - 00:37
User Badges:
  • Super Gold, 25000 points or more
  • Hall of Fame,

    Founding Member

Hi, the IOS you are using has many bugs, for stable operation of 7200 I recommend use of 12.2S and nothing else.

Please rate post if it helps!


This Discussion