Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

router with high cpu utilisation

hi,

I have a 1700 router IOS (tm) C1700 Software (C1700-Y-M), Version 12.2(4)YA2..used for internet access(one serial and lan)

For quite some time internet access has been slow and bandwidth seems adequate 128k...i have often found CPU utilisation high for process "IP input"

I have followed the steps outlined "troubleshooting cpu with high util" but still cant figure out the slowness

quoted below

Sh processes mem

5 0 144600 25060 80712 37368 11200 Pool Manager

sh processes cpu "ip input" around 75%

FastEthernet0

Throttle count 0

Drops RP 0 SP 0

SPD Flushes Fast 0 SSE 0

SPD Aggress Fast 0

SPD Priority Inputs 0 Drops 0

Protocol Path Pkts In Chars In Pkts Out Chars Out

Other Process 720 89770 1985 119100

Cache misses 0

Fast 0 0 0 0

Auton/SSE 0 0 0 0

IP Process 773705 49166208 68571 5826333

Cache misses 48345

Fast 110607 8918913 130948 51096825

Auton/SSE 0 0 0 0

ARP Process 239294 14357640 1182 70920

Cache misses 0

Fast 0 0 0 0

Auton/SSE 0 0 0 0

CDP Process 0 0 336 143395

Cache misses 0

Fast 0 0 0 0

Auton/SSE 0 0 0 0

Serial0

Throttle count 0

Drops RP 51 SP 0

SPD Flushes Fast 0 SSE 0

SPD Aggress Fast 0

SPD Priority Inputs 0 Drops 0

Protocol Path Pkts In Chars In Pkts Out Chars Out

Other Process 0 0 1991 47784

Cache misses 0

Fast 0 0 0 0

Auton/SSE 0 0 0 0

IP Process 388460 26621079 1069386 60781784

Cache misses 557

Fast 454652 81154504 434233 39169294

Auton/SSE 0 0 0 0

CDP Process 0 0 339 134525

Cache misses 0

Fast 0 0 0 0

Auton/SSE 0 0 0 0

Public buffer pools:

Small buffers, 104 bytes (total 150, permanent 50, peak 182 @ 01:23:16):

134 in free list (20 min, 150 max allowed)

1407606 hits, 618 misses, 35 trims, 135 created

26 failures (0 no memory)

Middle buffers, 600 bytes (total 34, permanent 25, peak 34 @ 00:09:47):

32 in free list (10 min, 150 max allowed)

13942 hits, 3 misses, 0 trims, 9 created

0 failures (0 no memory)

Big buffers, 1536 bytes (total 50, permanent 50):

50 in free list (5 min, 150 max allowed)

896 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)

If anyone out there can help me or atleast point in the right direction

2)what IS the txload parameter and rx load parameter for sh int s0 in terms of packet leaving interface

thanks and regards

1 REPLY

Re: router with high cpu utilisation

you need to see what packets are eating up your link. Try putting a "ip route-cache flow" on the interface and give "show ip cache flow" to see the exact source,destination ip's and ports.

This might be a nachi virus. follow appropriate ways to prevent this.

81
Views
0
Helpful
1
Replies