Specifications

Configuring and Managing Ports
4-6 Configuring and Managing Ports and VLANs
Configuring Media Type on a Dual-Interface Gigabit Ethernet Port
(RBT-8400 only)
ThegigabitEthernetportsonanRBT‐8400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,theGBIC(fib er)interface.Youcanconfigure
aporttousetheRJ‐45(copper)interfaceinstead.
Ifyousettheportinterface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anRBT‐8400port,usethe
followingcommand:
set port preference port-list rj45
TodisablethecopperinterfaceandreenablethefiberinterfaceonanRBT‐8400port,usethe
followingcommand:
clear port preference port-list
Todisplaytheenabledinterfacetypeforeachport,usethefollowingcommand:
show port preference [port-list]
Example
Todisablethefiberinterfaceandenablethecopperinterfaceofport2onanRBT‐8400switchand
verifythechange,typethefollowingcommands:
set port preference 2 rj45
show port preference
Port Media Type
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1 GBIC
2 RJ45
3 GBIC
4 GBIC