Technical data

58 FastIron Ethernet Switch Administration Guide

53-1002637-02

Basic port parameter configuration

Enabling and disabling 100BaseFX on

Chassis-based and stackable devices

NOTE

The following procedure applies to Stackable devices and to Chassis-based 100/1000 Fiber

interface modules only. The CLI syntax for enabling and disabling 100BaseFX support on these

devices differs than on a Compact device. Make sure you refer to the appropriate procedures. These

are not supported on ICX 6430 and ICX 6450 devices.

FastIron devices support the following types of SFPs for 100BaseFX:

• Multimode SFP – maximum distance is 2 kilometers

• Long Reach (LR) – maximum distance is 40 kilometers

• Intermediate Reach (IR) – maximum distance is 15 kilometers

For information about supported SFP and SFP+ transceivers on FastIron devices, refer to the

following Brocade website:

http://www.brocade.com/downloads/documents/data_sheets/product_data_sheets/Optics_

DS.pdf

NOTE

Connect the 100BaseFX fiber transceiver after configuring both sides of the link. Otherwise, the

link could become unstable, fluctuating between up and down states.

To enable support for 100BaseFX on an FSX fiber port or on a Stackable switch, enter commands

such as the following.

Brocade(config)# interface ethernet 1/6

Brocade(config-if-1/6)# 100-fx

The above commands enable 100BaseFX on port 6 in slot 1.

Syntax: [no] 100-fx

To disable 100BaseFX support on a fiber port, enter the no form of the command. Note that you

must disable 100BaseFX support before inserting a different type of module In the same port.

Otherwise, the device will not recognize traffic traversing the port.

Changing the Gbps fiber negotiation mode

The globally configured Gbps negotiation mode is the default mode for all Gbps fiber ports. You

can override the globally configured default and set individual ports to the following:

NOTE

Gbps negotiation is not supported on ICX 6430 and ICX 6450 devices.

• Negotiate-full-auto – The port first tries to perform a handshake with the other port to

exchange capability information. If the other port does not respond to the handshake attempt,

the port uses the manually configured configuration information (or the defaults if an

administrator has not set the information). This is the default.

• Auto-Gbps – The port tries to perform a handshake with the other port to exchange capability

information.