From: Dan C (cdan2154@gmail.com)
Date: Fri Mar 23 2007 - 09:01:30 ART
Hi Ben,
You don't need to use any debug commands, for memory fragmentation you will
need the following command taken at few time intervals :
R1#sh mem summ
Head Total(b) Used(b) Free(b) Lowest(b)
Largest(b)
Processor 65856EE0 90870048 21288236 69581812 68238200
68175244
I/O EAF00000 17825792 4463716 13362076 13341456
13344796
Watch for the difference in size between the largest memory block .... for
the buffers use :
R1#sh buffers
Buffer elements:
1119 in free list (500 max allowed)
10264 hits, 0 misses, 1119 created
Public buffer pools:
Small buffers, 104 bytes (total 50, permanent 50, peak 68 @ 04:20:39):
31 in free list (20 min, 150 max allowed)
6523 hits, 6 misses, 18 trims, 18 created
0 failures (0 no memory)
Middle buffers, 600 bytes (total 28, permanent 25, peak 46 @ 04:20:39):
15 in free list (10 min, 150 max allowed)
673 hits, 7 misses, 18 trims, 21 created
0 failures (0 no memory)
Big buffers, 1536 bytes (total 50, permanent 50):
50 in free list (5 min, 150 max allowed)
580 hits, 0 misses, 0 trims, 0 created
0 failures (0 no memory)
VeryBig buffers, 4520 bytes (total 10, permanent 10):
10 in free list (0 min, 100 max allowed)
0 hits, 0 misses, 0 trims, 0 created
0 failures (0 no memory)
Large buffers, 5024 bytes (total 0, permanent 0):
0 in free list (0 min, 10 max allowed)
0 hits, 0 misses, 0 trims, 0 created
0 failures (0 no memory)
Huge buffers, 18024 bytes (total 0, permanent 0):
0 in free list (0 min, 4 max allowed)
0 hits, 0 misses, 0 trims, 0 created
0 failures (0 no memory)
Apply the command at few time intervals .... if the total value is bigger
than max allowed you may have a buffer related issue...
HTH, Dan
On 3/23/07, Ben Zheng <bzheng8989@yahoo.com> wrote:
>
> I need to monitor the buffer usages on the router. Is there any show or
> debug command available in IOS?
>
> TIA,
>
> Ben
>
>
>
>
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