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Catalyst 6500 Series Switch Command Reference—Release8.4
OL-6244-01
Chapter2 Catalyst 6500 Series Switch and ROM Monitor Commands set port auto-mdix
set port auto-mdix
To enable or disable the automatic Media-Dependent Interface Crossover (MDIX) function, use the set
port auto-mdix feature.
set port auto-mdix mod/port {enable | disable}
Syntax Description
Defaults The automatic MDIX function is enabled on all WS-X6748-GE-TX ports.
The automatic MDIX function is disabled on the Supervisor Engine 720. See the “Usage Gu ideline s”
section for more information.
Command Types Switch command.
Command Modes Privileged.
Usage Guidelines Auto-MDI/MDIX has always been enabled on the following modules:
•WS-X6548-RJ-45, WS-X6548-RJ-21, WS-X6148-GE-TX, WS-X6548-GE-TX
Auto-MDI/MDIX works in 10-, 100-, and 1000-Mbps modes with autonegotiated and fixed speeds.
•WS-X6516-GE-TX
Auto-MDI/MDIX works with the speed set to auto/1000 Mbps, but not with th e speed set to 10 Mbps
or 100 Mbps.
•WS-X6316-GE-TX
With software release 8.2(1), auto-MDIX is also enabled on the following modules:
•WS-X6748-GE-TX, Supervisor Engine 720 port 2 (RJ-45)
Auto-MDI/MDIX works with the speed se t to au to /100 0, but no t w ith the sp eed s et t o 10 Mb ps o r
100 Mbps
•WS-X6148X2-RJ-45, WS-X6148X2-45AF
Auto-MDI/MDIX works with the speed set to auto, but not with the speed set to 10 Mbps or 100
Mbps.
Note Auto-MDI/MDIX is not supported on any other 10/100-Mbps Ethernet modules or GBIC, SFP, and
XENPAK ports.
mod/port Module number and port number.
enable Enables automatic MDIX function.
disable Disables automatic MDIX function.