Layer 3 switching logic architecture in an integrated...

Details Layer 3 switching logic architecture in an integrated... Layer 3 switching logic architecture in an integrated...

2006-07-18

2006-07-18

Pham, Chi (Department: 2666)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S469000

Reexamination Certificate

active

07079537

ABSTRACT:
A network switch, configured for performing layer2and layer3switching in an Ethernet (IEEE 802.3) network without blocking of incoming data packets, includes a switching module for performing layer2and layer3(specifically Internet Protocol) switching operations, and a plurality of network switch ports, each configured for connecting the network switch to a corresponding subnetwork. The switching module includes address tables for storing address information (e.g., layer2and layer3address and switching information). The network switching module is configured for performing prescribed layer3switching that enables transfer of data packets between subnetworks, bypassing a router that normally would need to manage Internet protocol switching between subnetworks of the network. Hence, the network switch performs Internet Protocol switching for intranetwork (i.e., inter-subnetwork) traffic, improving efficiency of the router by enabling the router resources to support more subnetworks.

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