Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations strongm on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

AS5300 Cisco router crash diagnostic tools?

Status
Not open for further replies.

pipemole

Programmer
May 9, 2003
19
IE
Are there available open source tools to help diagnose problems with Cisco routers, similar to Cisco TAC’s Output Interpreter?
I have a router which is occasionally restarting itself (software imposed reload). My Cisco logon allows very limited access only.
- - pipemole - - 1/5/2005
 
Hello there,

I am not aware about such tools, however I may be able to help you identify why the router relaods.... To me it looks like the router may build up memory fragmentation and once the mem fragmentation gets to a certain stage, any request for a big chunck of mem will cause the router to reload and reset the free memory... To check this you can capture sh mem sum ocnce every few days and see if the total free memory block is decreasing... If this is the case as a solution you may try to upgrade your existing IOS to the latetes in your train and monitor again... Cheers
 
The previous post was not quite right....if the memory does get fragmented, then any request for a block of memory larger than the largest free block with result in a MALLOC (Memory Allocation) Failure and not a reload.

If you can post me a copy of the following outputs (once the router has reloaded) I can check the crash for you:

- sh ver
- sh stack

HTH!
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top