3com WX1200 3CRWX120695A Benutzerhandbuch
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C
HAPTER
5: C
ONFIGURING
AND
M
ANAGING
P
ORTS
AND
VLAN
S
Configuring Interface
Preference on a
Dual-Interface
Gigabit Ethernet Port
(WX4400 only)
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).
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.
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.
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:
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:
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:
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:
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
WX4400# display port media-type
Port Media
Type
===========================================================
1 GBIC
2 RJ45
3 GBIC
4 GBIC
1 GBIC
2 RJ45
3 GBIC
4 GBIC