Ifmodeset - Brocade Communications Systems A7533A - Brocade 4Gb SAN Switch Base Command Reference Manual

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ifModeSet

ifModeSet
Sets the link operating mode for a network interface.
Synopsis ifmodeset ["interface"]
Description Use this command to set the link operating mode for a network interface.
An operating mode is confirmed with a y or yes at the prompt. If the operating mode selected
differs from the current mode, the change is saved and the command exits.
Changing the link mode is not supported for all network interfaces or for all Ethernet network
interfaces. This command is only functional for the eth0 interface.
When selecting auto-negotiation, you can choose the specific link operating modes that are
advertised to the link partner. At least one common link operating mode must be advertised by
both sides of the link.
When forcing the link operating mode, both sides of the link must be forced to the exact same
mode. The link does not work reliably if one side is set to auto-negotiate and the other side is set to
forced mode.
Exercise care when using this command. Forcing the link to an operating mode not supported by
the network equipment to which it is attached might result in an inability to communicate with the
system through its Ethernet interface. It is recommended that this command be used only from the
serial console port. When used through an interface other than the serial console port, the
command displays a warning message and prompts you for verification before continuing. This
warning is not displayed and you are not prompted when the command is used through the serial
console port.
For dual-CP systems, the ifModeSet command affects the CP that you are currently logged in to. To
set the link operating mode on the active CP, you must issue this command on the active CP; to set
the link operating mode on the standby CP, you must issue this command on the standby CP.
During failover, the link operating mode is retained separately for each CP, because the physical
links might be set to operate in different modes.
Note The execution of this command is subject to Admin Domain restrictions that may be in place. Refer
to chapter 1, "Understanding Admin Domain Restrictions" and Appendix A, "Command Availability"
for details.
Operands This command has the following operand:
"interface"
Examples To advertise all modes of operation, when not entering this command through the serial console
port, follow this scenario for the ifModeSet command:
272
Specify the name of the interface. You can specify the name with quotation
marks, but using them is not required. For example, you can use either eth0
or "eth0", where eth is the network interface and 0 is the physical unit.
switch:admin> ifmodeset eth0
Exercise care when using this command.
an operating mode not supported by the network equipment to
which it is attached may result in an inability to
communicate with the system through its ethernet interface.
It is recommended that you only use this command from the
serial console port.
Forcing the link to
Fabric OS Command Reference
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