Hello all,
I am troubleshooting memory leaks and buffers issues on my 1900 and had some doubts regarding the problems that my router causes.
Intermitently during the day for no reason the gig0/0 interface connected to ISP stops responding from our management network
(log shows that the interface goes down). The ISPs modem responds fine from my management network.
The issue goes away by itself in 20 minutes, sometimes more or after a hard reboot.
Sometimes a router would increment a throttle value to 1. When running for 4 days without a reboot, the router raised 39 throttles and 57 input drops.
The CPU usage during reboot is 100%:
778897778942988882637879090686766666856555667666666766666656
100 ****
90 **#*
80 **##
70 *###
60 *###*
50 * * *###*
40 * * *###*
30 * * ####*
20 * * ####*
10 *****#****#************#####********************************
0....5....1....1....2....2....3....3....4....4....5....5....6
0 5 0 5 0 5 0 5 0 5 0
CPU% per minute (last 60 minutes)
* = maximum CPU% # = average CPU%
The buffers are like this:
Public buffer pools:
Small buffers, 104 bytes (total 153, permanent 50, peak 224 @ 00:26:53):
149 in free list (20 min, 150 max allowed)
1523588 hits, 1741 misses, 906 trims, 1009 created
846 failures (0 no memory)----------Altough it was about 1200000 before a reboot.
Middle buffers, 600 bytes (total 92, permanent 25, peak 92 @ 00:45:41):
86 in free list (10 min, 150 max allowed)
65702 hits, 384 misses, 0 trims, 67 created
329 failures (0 no memory)
Big buffers, 1536 bytes (total 62, permanent 50, peak 62 @ 00:05:06):
61 in free list (5 min, 150 max allowed)
18865 hits, 220 misses, 6 trims, 18 created
212 failures (0 no memory)
Memory leak shows the following:
Biblio_Cane#show memory debug leaks
Adding blocks for GD...
I/O memory
Address Size Alloc_pc PID Alloc-Proc Name
Processor memory
Address Size Alloc_pc PID Alloc-Proc Name
2722DDA0 1076 210CCBD8 0 *Init* *Init*
The router is running Version 15.1(2)T4 and I was not able to find any caveats on cisco web page (although I havent used the bug finder tool)
Is this only leak I found a reason to start worrying or I can disregard it and continue basic troubleshooting (change cable and plug my ISP to another port)
Thanks a lot!!
