Extreme Networks ExtremeWare XOS Guide Manual page 115

configure ports 1:1 auto off duplex full
The 10 Gbps ports do not autonegotiate; they always run at full duplex and 10 Gbps speed.
Table 17 lists the support for autonegotiation, speed, and duplex setting for the various types of ports.
Table 17: Support for autonegotiation on various ports
Port
10 Gbps
10/100/1000 Mbps
1 Gbps fiber SFP GBIC
Turning off Autopolarity—Summit X450 Switch and BlackDiamond 8800 Family of
Switches Only
(Autopolarity detection is always on for the BlackDiamond 10K switch.)
The autopolarity feature allows the system to detect and respond to the Ethernet cable type (straight-
through or crossover cable) used to make the connection to the switch port. This feature applies to only
the 10/100/1000 BASE-T ports on the switch.
When the autopolarity feature is enabled, the system causes the Ethernet link to come up regardless of
the cable type connected to the port. When the autopolarity feature is disabled, you need a crossover
cable to connect other networking equipment and a straight-through cable to connect to endstations.
The autopolarity feature is enabled by default.
To disable or enable autopolarity detection, use the following command:
configure ports [<port_list> | all] auto-polarity [off | on]
where the following is true:
—Specifies one or more ports on the switch.
●
port_list
—Specifies all of the ports on the switch.
●
all
—Disables the autopolarity detection feature on the specified ports.
●
off
—Enables the autopolarity detection feature on the specified ports.
●
on
Under certain conditions, you might opt to turn autopolarity off on one or more ports. The following
example turns autopolarity off for ports 5 to 7 on a Summit X450 switch:
configure ports 5-7 auto-polarity off
When autopolarity is disabled on one or more Ethernet ports, you can verify that status by using the
command:
show ports information detail
ExtremeWare XOS 11.3 Concepts Guide
Autonegotiation
Off
On (default)
Off
On (default)
Off
Configuring Ports on a Switch
Speed
10000 Mbps
10 Mbps
100 Mbps
1000 Mbps
Duplex
Full duplex
Full/half duplex
Full/half duplex
Full duplex
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