VLAN protocol

Details VLAN protocol VLAN protocol

2005-12-13

2005-12-13

Pham, Chi (Department: 2666)

Multiplex communications

Wide area network

Packet switching

C370S390000, C370S392000, C370S396000, C370S395310, C370S395320, C370S432000, C709S243000

Reexamination Certificate

active

06975581

ABSTRACT:
A method of broadcasting a packet to the ports belonging to one VLAN of a network, whereas the network has multiple network switches. Each network switch has its own local ports and a local VLAN table. Each local VLAN table stores local port membership of its network switch, and switch membership per VLAN identifier. The local VLAN table is accessed by a VLAN identifier which is stored in the packet, and retrieves the local port membership and switch membership associated with the VLAN identifier. A copy of the packet is provided to each local port and to each switch retrieved from said local VLAN table.

REFERENCES:
patent: 5740171 (1998-04-01), Mazzola et al.
patent: 5852607 (1998-12-01), Chin
patent: 5923660 (1999-07-01), Shemla et al.
patent: 6085238 (2000-07-01), Yuasa et al.
patent: 6147995 (2000-11-01), Dobbins et al.
patent: 6266705 (2001-07-01), Ullum et al.

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