Configuring Interface Preference On A Dual-Interface Gigabit Ethernet Port (Wx4400 Only) - 3Com WX1200 3CRWX120695A Configuration Manual

78 C 5: C
HAPTER ONFIGURING AND
Configuring Interface
Preference on a
Dual-Interface
Gigabit Ethernet Port
(WX4400 only)
M P
ANAGING ORTS AND
The gigabit Ethernet ports on a WX4400 have two physical interfaces: a
1000BASE-TX copper interface and a 1000BASE-SX or 1000BASE-LX
fiber interface. The copper interface is provided by a built-in RJ-45
connector. The fiber interface is optional and requires insertion of a
Gigabit interface converter (GBIC).
Only one interface can be active on a port. By default, MSS prefers the
GBIC (fiber) interface. You can configure a port to prefer the RJ-45
(copper) interface instead.
If you set the preference to RJ-45 on a port that already has an active
fiber link, MSS immediately changes the link to the copper interface.
To disable the fiber interface and enable the copper interface on a
WX4400 port, use the following command:
set port media-type port-list rj45
To disable the copper interface and reenable the fiber interface on a
WX4400 port, use the following command:
clear port media-type port-list
To display the enabled interface type for each port, use the following
command:
display port media-type [port-list]
To disable the fiber interface and enable the copper interface of port 2 on
a WX4400 switch and verify the change, type the following commands:
WX4400# set port media-type 2 rj45
WX4400# display port media-type
Port Media Type
===========================================================
1 GBIC
2 RJ45
3 GBIC
4 GBIC
VLAN
S