Configurable fast ethernet and gigabit ethernet data port

Details Configurable fast ethernet and gigabit ethernet data port Configurable fast ethernet and gigabit ethernet data port

2002-09-06

2011-11-22

Yao, Kwang B (Department: 2473)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S419000, C709S250000

Reexamination Certificate

active

08064471

ABSTRACT:
An Ethernet switch has at least one ingress/egress port1which is operable in two modes, in a first mode as a GE port and in a second mode as a plurality of FE ports. The port has 8 MAC interfaces3each of which is capable of receiving/transmitting FE packets, and at least one of the MAC interfaces can be configured to receive/transmit GE packets. Thus, the port has two modes of operation. The port further includes receive and transmit modules5, 7which receive GE and FE packets from, and transmit GE and FE packets to, the interfaces. If there are 8 such ports in the Ethernet switch, then by switching different numbers of the ports between the two modes, the switch may operate in 9 different modes: as 8 GE ports, 7 GE ports and 8 FE ports, 2 GE ports and 48 FE ports, 1 GE port and 56 FE ports, or simply as 64 FE ports.

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“Etherfast 10/100/1000 8 Port Giga Switch”, LINKSYS User Guide, XP002244154, www.linksys.com.

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