Switch not learning PC/Laptop MAC after connected to another switch

[dvo73d123]

Has anyone experienced this issue before, client originally connects to the 4500E, moves to the 2960s and then cannot connect back to the 4500E.

My design is a 4500E (configured for routing) and a 2960s. The 2960s is trunked to the 4500E, no vlan pruning.

Tried;

- shut/no shut port on the 4500E doesn't work

- no result for sh ip arp | i (clients mac) or sh mac address | i (clients mac) on the 4500E

The only way I can get the user back online is removing the 2960s, not a desirable solution as other clients are on the 2960s.

[Milan Rai]

Hey Matt what about the mac address notification change??????

have you configured this on your switch????

mac address-table notification change interval 0

mac address-table notification change

I think tha may be due the this issue......4500E may not be releasing the mac so.........

If helps u plz...dont forget rating....

Thank You

Milan

[dvo73d123]

Thanks Milan, I believe the command you mention is for SNMP traps?