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Beginner

MAC address on interface

Hello,

I've a 3750x switch, I've noticed that some interfaces are without any mac address on it although there's a continuous traffic on those interfaces.

What might be the reason of that?

Please advice.

 

Regards,

1 REPLY 1
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VIP Mentor

Re: MAC address on interface

Hi

Check the end device on these interfaces  ,the device is responsible for broadcasting MAC to the switch , switch can only receive what it is sent and enter into the CAM table

 

Sometimes storage systems and filers may not show MACs locally on the port

Check whats connected and exactly what the device is doing , like running vms or storage etc

 

it doesn't mean theres an issue with the switch

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