MAC address flap anomaly

Azar
Here to help

MAC address flap anomaly

Azar_0-1736761752169.png

I am having this alert in MS Switch at Dashboard. Can anyone do help to resolve this Alert.

8 Replies 8
cmr
Kind of a big deal
Kind of a big deal

What do the event logs say?  It should show what Mac address(es) are moving from port to port.

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Azar
Here to help

Azar_0-1736762646954.png

 

cmr
Kind of a big deal
Kind of a big deal

That is suggesting that the device is changing from being seen over the aggregate ports to the local port 3.  What is connected to Aggr/0 and port 3?

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Azar
Here to help

Around 7 Switches the Alert came like this.

Mloraditch
Head in the Cloud

If you have non Meraki APs you can easily see this when clients roam. I think this is one of those alerts that someone at Meraki recently decided should become more visible, but there are definitely cases where this is spurious. As CMR said look at the ports in question if say port 3 is an AP and AGGR/0 is an uplink to another switch where more APs that's probably the cause.

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PhilipDAth
Kind of a big deal
Kind of a big deal

This is my bet - WiFi clients roaming between APs.

Brash
Kind of a big deal
Kind of a big deal

^ 100%
Most of the time this is from devices roaming between different WAP's

rhbirkelund
Kind of a big deal
Kind of a big deal

That, or a server with virtual machines and misconfigured ports.

But my bet would also be wireless client roaming.

LinkedIn ::: https://blog.rhbirkelund.dk/

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