Intel A21721-001 manual Overview of the Fast Ethernet Modules, 10/100 Ethernet Module

C H A P T E R 3 Intel® NetStructure™ 6000 Switch Modules User Guide

Overview of the Fast Ethernet Modules

The Intel® NetStructure™ 6000 switch has two Fast Ethernet modules. One is a 100Base-TX card which can upgrade your Ethernet network to Fast Ethernet by supporting both 10Mbps and 100Mbps on each switched port.

The other module is a 100Base-FX card which can directly upgrade your Ethernet network to 100Mbps.

10/100 Ethernet Module

This module is a 24-port 100Base-TX Ethernet card. It supports full- and half-duplex 10 and 100Mbps data transfer and auto-negotiation.

Setting Auto-negotiation

Auto-negotiation allows each end of a link to query the other to determine a compatible mode of operation. For example, if both links support full-duplex operation, then the switch can determine this mode.

When a link becomes active, the switch determines the highest throughput mode of operation between the two devices.

The Control Process (CP) software also includes commands that allow the speed and duplex of the ports to be manually set.

Note The default setting is “autoneg 100 10 full half.” The link uses autonegotiation to choose the best mode. This is usu- ally the best setting unless the remote partner is not working properly. When the remote partner is not capable of autone- gotiation, the port autosenses the speed and defaults to half duplex.

Type the privileged set link port_number options command, where port_number is one of the global ports on the chassis and options are autoneg or noautoneg, 10, 100, half or full.

Example

Intel Switch>#>set link 6 100 FULL no autoneg

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