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Beginner

storm on Cisco 4500 port

I have Cisco 4500 switch  port Gig22 show 88-99 % usage frequently  port stats  shows its a trunk port all vlan's are allowed i see a lot of Multicast and Broadcast  traffic , My question is how can i tell which Vlan causing  this huge traffic  .

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Hall of Fame Community Legend

Re: storm on Cisco 4500 port

If it is a trunk port, what is the switch on the other side? Is it a Catalyst 2k/3k? If it is, what is the exact model and what is the exact IOS version?
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Beginner

Re: storm on Cisco 4500 port

its connected to 3750E-universlk9-m   version 15.2(4)E7

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Hall of Fame Expert

Re: storm on Cisco 4500 port

Getting this type info from the switch is not easy. If you have a management software like Solarwinds or PRTG, you can monitor each vlans and see the bandwidth  consumption.

HTH

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Beginner

Re: storm on Cisco 4500 port

Reza 

I have solarwinds  but in the same time its trunk port with more than 200 Vlan's , Do you know if solarwinds can tell which Vlan causing this storm.

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Hall of Fame Community Legend

Re: storm on Cisco 4500 port

On the 3750E, enter the command:

sh controllers utilization

NOTE: The output is in "real time".

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VIP Advocate

Re: storm on Cisco 4500 port

Hi,

It is not easy to get details from the switch itself. Better to you Netflow and get top talker and real-time analysis. 

Regards,
Deepak Kumar,
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