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Ethernet Ports Overview Configuring Ethernet Ports

page 1-4 OmniSwitch 6800/6850/9000 Network Configuration Guide June 2006

Ethernet Ports Overview

This chapter describes the Ethernet software CLI commands used for configuring and monitoring your

switch’s Ethernet port parameters. These commands allow you to handle administrative or port-related

requests to and from SNMP, CLI, or WebView.

Note. OmniSwitch 9000 Series switches do not support combo ports. These ports are supported on

OmniSwitch 6800 Series and OmniSwitch 6850 Series switches only.

OmniSwitch 6800 and 6850 Series Combo Ports

All OmniSwitch 6800 and 6850 switches have four ports that are shared between four copper 10/100/1000

RJ-45 connections and four fiber 1Gbps MiniGBIC SFP slots, which can accept any qualified 1Gbps SFP

transceivers. These ports are known as combo ports (also sometimes referred to as “hybrid” ports).

You can use either the copper 10/100/1000 port or the equivalent fiber MiniGBIC SFP port, for example,

but, not both at the same time. By default, combo ports are set to preferred fiber, which means that the

switch will use the fiber MiniGBIC SFP port instead of the equivalent copper RJ-45 port or fiber 100

Mbps port if both ports are enabled and have a valid link. However, if the MiniGBIC SFP port goes down,

the equivalent RJ-45 or fiber 100 Mbps port will come up. This mode can be used if you want to use the

fiber 1 Gbps connection as your main link while having a copper link as a backup.

For example, on the OmniSwitch 6800-48 ports, 45–48 are combo ports. If cables are connected into the

copper port 45 and the fiber port 45, the fiber MiniGBIC SFP link will be the active one. If the MiniGBIC

SFP link goes down then the copper port will automatically become active. No user intervention is

required.

Note. See “Valid Port Settings on OmniSwitch 6800 Series Switches” on page 1-5 and “Valid Port

Settings on OmniSwitch 6850 Series Switches” on page 1-5 for more information on combo ports. In addi-

tion, refer to the specific Hardware Users Guide for each type of switch.

The following three additional optional combo port modes are user configurable:

• Preferred copper. In this mode, the switch will use the copper RJ-45 port instead of the equivalent fiber

MiniGBIC SFP port, if both ports are enabled and have a valid link.

• Forced fiber. In this mode, the switch will always use the fiber MiniGBIC SFP port instead of the

equivalent copper RJ-45 port.

• Forced copper. In this mode, the switch will always use the copper RJ-45 port instead of the equiva-

lent fiber MiniGBIC SFP port.

See “Setting the Combo Port Type and Mode” on page 1-18 for more information on configuring combo

ports.

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