Configuration Guide User guide

FastIron Configuration Guide 59
53-1002494-02
Basic port parameter configuration
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.
• Negotiation-off – The port does not try to perform a handshake. Instead, the port uses
configuration information manually configured by an administrator.
To change the mode for individual ports, enter commands such as the following.
Brocade(config)# interface ethernet 1 to 4
Brocade(config-mif-1-4)# gig-default auto-gig
This command overrides the global setting and sets the negotiation mode to auto-Gbps for ports 1
– 4.
Syntax: gig-default neg-full-auto | auto-gig | neg-off
NOTE
When Gbps negotiation mode is turned off (CLI command gig-default neg-off), the Brocade device
may inadvertently take down both ends of a link. This is a hardware limitation for which there is
currently no workaround.