STP problem ?

Answered Question
Jan 10th, 2008
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Hi NetPro,


anyone knows why these msgs keep promping from my access switch ?


1d10h: add static addr 0100.5e01.0203, port Gi0/1 (8) vlan 72

1d10h: add static addr 0100.5e01.0203, port Gi0/2 (8) vlan 72

1d10h: add static addr 0100.5e01.0203, port Gi0/1 (8) vlan 72

1d10h: add static addr 0100.5e01.0203, port Gi0/2 (8) vlan 72

1d10h: add static addr 0100.5e01.0203, port Gi0/1 (8) vlan 72

1d10h: add static addr 0100.5e01.0203, port Gi0/2 (8) vlan 72

1d10h: add static addr 0100.5e01.0203, port Gi0/1 (8) vlan 72

1d10h: add static addr 0100.5e01.0203, port Gi0/2 (8) vlan 72

1d10h: Add address 00e0.8602.1e76, on port Gi0/1 vlan 303

1d10h: Add address 00e0.8602.1e77, on port Gi0/1 vlan 303

1d10h: Add address 00e0.8602.1e75, on port Gi0/1 vlan 303

1d10h: Add address 00e0.8602.1e78, on port Gi0/1 vlan 303

1d10h: Add address 00e0.8602.1e8a, on port Gi0/1 vlan 303

1d10h: Add address 0020.f5f0.0100, on port Gi0/1 vlan 300


your reply will be highly appreciated.


regards,

Jack

Correct Answer by Edison Ortiz about 9 years 3 months ago

Do you have any debugging turned on?

What you are seeing is a normal behavior when the switch is populating its CAM table, however this output shouldn't be seen in the log.


Type show debug and see if there is anything turned on. To disable debug, type undebug all


HTH,


__


Edison.

Correct Answer by ankbhasi about 9 years 3 months ago

Hi Jack,


I believe this is not something critical. Looks like your log settings might have been configured with logging level for the console, monitor, and buffer logging as "Debugging" in this way, every single action the switches take such as the normal port adress learning is reported into the log.


If you see from your logs this is just that some end statiocn might have some online and their mac addresses are learned on ports and your previous message it is a multicast mac address which is getting learned on port and vlan.


Can you please check the "sh logs" and see what is the level it is configured for? and if it is debugging you can change it accordingly as per your network requirement.


HTH


Ankur


*Pls rate all helpfull post


Correct Answer by Edison Ortiz about 9 years 3 months ago

Are you using port-security?

Can we see the configuration from this switch?


__


Edison.

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Correct Answer
Edison Ortiz Thu, 01/10/2008 - 05:56
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Are you using port-security?

Can we see the configuration from this switch?


__


Edison.

ney25 Thu, 01/10/2008 - 06:10
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Hi Edison,


Thanks for the fast responsed, well this is Cat3500XL. i didnt apply Port Security.


attached with the switch config.


thanks.


regards,

Jack



Attachment: 
Correct Answer
Edison Ortiz Thu, 01/10/2008 - 06:15
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  • Super Bronze, 10000 points or more
  • Hall of Fame,

    Founding Member

Do you have any debugging turned on?

What you are seeing is a normal behavior when the switch is populating its CAM table, however this output shouldn't be seen in the log.


Type show debug and see if there is anything turned on. To disable debug, type undebug all


HTH,


__


Edison.

Correct Answer
ankbhasi Thu, 01/10/2008 - 06:13
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  • Cisco Employee,

Hi Jack,


I believe this is not something critical. Looks like your log settings might have been configured with logging level for the console, monitor, and buffer logging as "Debugging" in this way, every single action the switches take such as the normal port adress learning is reported into the log.


If you see from your logs this is just that some end statiocn might have some online and their mac addresses are learned on ports and your previous message it is a multicast mac address which is getting learned on port and vlan.


Can you please check the "sh logs" and see what is the level it is configured for? and if it is debugging you can change it accordingly as per your network requirement.


HTH


Ankur


*Pls rate all helpfull post


ney25 Thu, 01/10/2008 - 06:30
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Hi Edison and Ankur,


thanks for the information. you were right it's caused by logging buffer and monitor setting.


thanks.


regards,

Jack

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