Patent ID: 7673068
Filing Date: 2010-03-02
Classification: H04L

Abstract:
1. A network node, comprising: a plurality of ports; a processor; and a content addressable memory (CAM), wherein said processor and said CAM enable the following actions: analyze a packet received at one of the ports; classify the port which received the packet as being a member of a first virtual local area network (VLAN); re-analyze the packet; flood copies of the packet to a first set of pre-selected port(s) which are members of the first VLAN when the re-analysis determines that the packet contains a normal message authentication code (MAC) destination address; and re-map a first VLAN_ID associated with the first VLAN to be a second VLAN_ID associated with a second VLAN and then flood copies of the packet to a second set of pre-selected port(s) which are members of the second VLAN when the re-analysis determines that the packet contains a special MAC destination address.