We have some computer,they're mac address decide by software.Now we find some same mac's computer in a switch.The same mac's computer belong to different vlan. Why the same mac's computer work well? The switch is Catalyst 2950:
show mac-add
Mac Address Table
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Vlan Mac Address Type Ports
---- ----------- ---- -----
160 00e0.fc00.1405 DYNAMIC Fa0/3
160 00e0.fc00.1409 DYNAMIC Fa0/4
160 00e0.fc00.1505 DYNAMIC Fa0/1
160 00e0.fc00.1509 DYNAMIC Fa0/2
220 00e0.fc00.1405 DYNAMIC Fa0/13
220 00e0.fc00.1409 DYNAMIC Fa0/14
220 00e0.fc00.1505 DYNAMIC Fa0/15
220 00e0.fc00.1509 DYNAMIC Fa0/16