2811 router needs to be reloaded every week.

[michaelca99]

It has been work for a year without problem. We didn't do any change. Recently, we have to reboot thist router to make it work. After the rebooting, the router will work for a while. It could work from few days to a week, and tt stops working again.

Any idea?

[paolo bevilacqua]

Update IOS.      

[Leo Laohoo]

Recently, we have to reboot thist router to make it work.

What do you mean "make it work"?  Describe the issue in more detail. 

If you can console into the router BEFORE the reboot, please post the following output:

1.  sh version; and

2.  sh proc cpu sort

[AhmedSonba]

Hello Shizai,

Check the CPU Utilization , high CPU load can cause such problems, please use the following command to check your CPU load show processes cpu  you can always post the results of the show command here so we can help you with the Issue

Hope it will help

Ahmed Sonba

[michaelca99]

Thanks guys, I have done sh version, sh processes cpu and sh processes memory

R1#sh ver

Cisco IOS Software, 2800 Software (C2800NM-ADVSECURITYK9-M), Version 12.4(15)T1, RELEASE SOFTWARE (fc2)

I attached the output. The CPU usage wasn't high. We are ISP. The router works as gateway to our customers. The throught is 10Mbits/s max. There is not inter-vlan routing.

Thanks again.

[michaelca99]

This morning, the router stopped working. The *Dead* memory pretty high. Is this memory leak issue?

After reloading router, the router works fine now.

R1#sh proc memory

Processor Pool Total:  183634560 Used:   20594720 Free:  163039840

      I/O Pool Total:   12582912 Used:    4980848 Free:    7602064

PID TTY  Allocated      Freed    Holding    Getbufs    Retbufs Process

   0   0   39615812   14489008   17995272          0          0 *Init*

   0   0      12052    1889628      12052          0          0 *Sched*

   0   0    5931088    7111704    3196312     195440     195440 *Dead*

   1   0     140384      30156     117432          0          0 Chunk Manager

[Leo Laohoo · Accepted solution]

I think you need to look for a new IOS.  It looks like it is indeed a memory leak.

[Raju Sekharan]

if the dead memory is holding lot of memroy, Please look at below output to see the processes casuing this

1. Show memory dead

Raju