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. And see here for current known issues.

New Member

Extremely slow telnet to Cisco 3560G switch

Hello,

This is reagrding one of our switch in production - Cisco 3560G. IOS image running is c3560-ipbase-mz.122-25.SEE2/c3560-ipbase-mz.122-25.SEE2.bin

Below is detailed issues & observations:

1) Telnet/Console Access is extremely Slow.

2) Although no teams whose devices are connected to this switch have not raised any concern. But we get ping drops when we try to ping any IP address 

   of connected servers or other switches from this affected switch.

3) No issue with CPU usage, it is well below 20%. No issue of choked bandwidth on any of the switch interfaces.

4) Tried to check for any Memory leaks but nothing relelvant found.

5) Switch is working as L3 with several SVI created for different server networks.

6) Switch uptime is almost 6 years - not too sure if this may have any relevance with the issue we are facing.

Please provide your valuable suggestion on how should we troubleshoot this further to identify the exact root cause of this issue.

Let me know if any other details are required.

Regards.

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Gold

Extremely slow telnet to Cisco 3560G switch

switch uptime is about 6 years

Most of the time, this could be a potential culprit.

7 REPLIES
Hall of Fame Super Gold

Extremely slow telnet to Cisco 3560G switch

Post the output to the command "sh proc cpu | ex 0.00".

New Member

Extremely slow telnet to Cisco 3560G switch

Hello Leo,

Below is the output ypu asked for.

CPU utilization for five seconds: 6%/0%; one minute: 6%; five minutes: 6%

PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process

  30    77671015  37712290       2059  0.15%  0.06%  0.02%   0 Compute load avg

  74    98131837 185685696        528  0.15%  0.08%  0.05%   0 hpm counter proc

112   454580673  37295581      12188  0.31%  0.23%  0.21%   0 HQM Stack Proces

155    87061383 812159159        107  0.15%  0.06%  0.04%   0 IP Input        

157   4007950971140631528        351  0.15%  0.20%  0.21%   0 Spanning Tree

Regards.

Hall of Fame Super Gold

Extremely slow telnet to Cisco 3560G switch

How about "sh controll util"?

New Member

Extremely slow telnet to Cisco 3560G switch

Hello Leo,

Below is the required output.

Port       Receive Utilization  Transmit Utilization
Gi0/1              0                    1
Gi0/2              0                    0
Gi0/3              0                    0
Gi0/4              0                    0
Gi0/5              0                    0
Gi0/6              0                    0
Gi0/7              0                    0
Gi0/8              0                    0
Gi0/9              0                    0
Gi0/10             0                    0
Gi0/11             0                    0
Gi0/12             0                    0
Gi0/13             0                    0
Gi0/14             0                    0
Gi0/15             0                    0
Gi0/16             0                    0
Gi0/17             0                    0
Gi0/18             0                    0
Gi0/19             0                    0
Gi0/20             0                    0
Gi0/21             0                    0
Gi0/22             0                    0
Gi0/23             0                    0
Gi0/24             0                    0
Gi0/25             0                    0
Gi0/26             0                    0
Gi0/27             0                    0
Gi0/28             0                    0
Gi0/29             0                    0
Gi0/30             0                    0
Gi0/31             0                    0
Gi0/32             0                    0
Gi0/33             0                    0
Gi0/34             0                    0
Gi0/35             0                    0
Gi0/36             0                    0
Gi0/37             0                    0
Gi0/38             0                    0
Gi0/39             0                    0
Gi0/40             0                    0
Gi0/41             0                    0
Gi0/42             0                    0
Gi0/43             0                    0
Gi0/44             0                    0
Gi0/45             0                    0
Gi0/46             0                    0
Gi0/47             3                    6
Gi0/48             0                    0
Gi0/49             0                    0
Gi0/50             0                    0
Gi0/51             0                    0
Gi0/52             0                    0

Total Ports : 52
Switch Receive Bandwidth Percentage Utilization  : 0
Switch Transmit Bandwidth Percentage Utilization : 0

Switch Fabric Percentage Utilization : 0

Hall of Fame Super Gold

Extremely slow telnet to Cisco 3560G switch

Hmmmm ... nothing wrong, as far as I can see from our output.

Have you considered upgrading the firmware of your switch to, say, 12.2(55)SE7?

New Member

Extremely slow telnet to Cisco 3560G switch

Hello Leo,

We have several other similar switches running the same IOS without any issues. Also, this switch was also running well since past several years as well, so this does not looks to be related to IOS image.

The only thing which we can think of at this point is that the switch uptime is about 6 years so reboot might be required. But that does not have any logical interpretation.

Any other ideas are welcomed.

Thanks.

Hall of Fame Super Gold

Extremely slow telnet to Cisco 3560G switch

switch uptime is about 6 years

Most of the time, this could be a potential culprit.

646
Views
0
Helpful
7
Replies
CreatePlease login to create content