Brocade Communications Systems 6650 Port speed and duplex mode modification

32 Brocade ICX 6650 Administration Guide
53-1002600-01
Basic port parameter configuration
2
Port speed and duplex mode modification
The Gigabit Ethernet copper ports are designed to auto-sense and auto-negotiate the speed and
duplex mode of the connected device. If the attached device does not support this operation, you
can manually enter the port speed to operate at either 10, 100, or 1000 Mbps. The default and
recommended setting is 10/100/1000 auto-sense.
NOTE
You can modify the port speed of copper ports only; this feature does not apply to fiber ports.
NOTE
For optimal link operation, copper ports on devices that do not support 803.3u must be configured
with like parameters, such as speed (10,100,1000), duplex (half, full), MDI/MDIX, and Flow Control.
Port speed and duplex mode configuration syntax
The following commands change the port speed of copper interface 1/1/1 on a Brocade ICX 6650
device from the default of 10/100/1000 auto-sense, to 100 Mbps operating in full-duplex mode.
Brocade(config)# interface ethernet 1/1/1
Brocade(config-if-e10000-1/1/1)# speed-duplex 100-full
Syntax: speed-duplex <value>
where <value> can be one of the following:
•10-full – 10 Mbps, full duplex
•10-half – 10 Mbps, ha lf duple x
•100-full – 100 Mbps, full duplex
•100-half – 100 Mbps, half duplex
•1000-full-master – 1 Gbps, full duplex master
•1000-full-slave – 1 Gbps, full duplex slave
•auto – auto-negotiation
The default is auto (auto-negotiation).
Use the no form of the command to restore the default.
NOTE
On Brocade ICX 6650 devices, when setting the speed and duplex-mode of an interface to 1000-full,
configure one side of the link as master (1000-full-master) and the other side as slave
(1000-full-slave).
NOTE
On Brocade ICX 6650 devices, after you remove 10 Gbps speed from the running configuration,
plugging in a 1G optic SFP transceiver into a 10 Gbps por t causes the softwar e to fail to revert the
ports back from the default 10G LRM mode to 1 Gbps speed. Remove the 1G SFP transceiver and
plug in the 10G optic SFP+transceiver so that the devices go into default 10 Gbps LRM mode.