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Community Member

catalyst 3750 12.2.25 SE4 unsollicited unicast trafic on access port

Hi folks,

We are monitoring trafic on a acces port which is connected to Heardbeat server port. So we redirect this trafic to the sniffer port, and we see traffic of all vlan. We don't understand because it is not broadcast and nor multicast, but unicast traffic from this vlan.

2 REPLIES

Re: catalyst 3750 12.2.25 SE4 unsollicited unicast trafic on acc

Is it all the unicast traffic of the VLAN, or just a few packets per second? It is quite normal for a certain amount of the unicast traffic to be flooded to all ports due to the aging algorithm on the mac forwarding table.

Kevin Dorrell

Luxembourg

Community Member

Re: catalyst 3750 12.2.25 SE4 unsollicited unicast trafic on acc

I think it's all the unicast traffic, because we have approximatively 20MB in one minute.

We have an aging time configurated by default to 300s.

If we increase the aging time what happened?

reguards

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