Patent ID: 6639901
Filing Date: 2003-10-28
Classification: H04L

Abstract:
In a LAN Emulation over Asynchronous Transfer Mode (ATM) network including at least one Emulation LAN (ELAN), one LAN Emulation Client (LEC) and one 802.1Q compliant bridge, a method of supporting 802.1Q Virtual LAN (VLAN) tagging with Independent VLAN Learning, said method comprising the steps of:creating an individual LE_ARP cache table instance for each filtering database maintained by said bridge, wherein each LAN Emulation Address Resolution Protocol (LE_ARP) cache table instance created is associated with an individual filtering database and a set of VLANs; associating a Port VLAN Identifier (PVID) with said LEC; including said LEC in tagged and untagged sets of VLANs; and including a VLAN-ID Type, Length, Value (TLV) in all control messages sent by said LEC.