Multiplex communications – Network configuration determination
Reexamination Certificate
2011-06-21
2011-06-21
Ryman, Daniel J (Department: 2466)
Multiplex communications
Network configuration determination
C370S351000, C370S396000
Reexamination Certificate
active
07965653
ABSTRACT:
A system and method efficiently conveys Virtual Local Area Network (VLAN) membership information across a bridged network. In particular, an intermediate network device, such as a bridge, includes a plurality of ports for interconnecting entities of a computer network. For each port, a Generic Attribute Registration Protocol (GARP) participant is established that has a compact GARP VLAN Registration Protocol (GVRP) application component and a GARP Information Declaration (GID) component. The GID component operates a plurality of state machines to maintain registration state for all of the VLANs of which the port has been made aware. The compact-GVRP application component further includes an encoder/decoder unit that collapses VLAN registration information according to an encoding algorithm. The collapsed VLAN registration information is then loaded into a single compact-GVRP PDU message for transmission from the respective port. The encoder/decoder unit also recovers encoded VLAN registration from received compact-GVRP PDU messages for operating the state machines.
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Blanton John
Cesari and McKenna LLP
Cisco Technology Inc.
Ryman Daniel J
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