The Combo Interface of MSR Series Router
Question :A new MSR30-40,connect the GigabitEthernet 0/0 with pc by twist pair, why
the interface GigabitEthernet 0/0 is always DOWN? And the speed on that
interface is not configuable.
Answer :Two Combo interfaces are provided of MSR 30-40/30-60/50-40/50-60 routers. It default
works at the state of fiber instead of Copper, this is the reason why the interface
GigabitEthernet 0/0 is always DOWN.
To solute this question, following the following steps:
Enter the interface of the router:
[H3C]interface GigabitEthernet 0/0
Change the pattern to Copper:
[H3C-GigabitEthernet0/0]combo enable copperNow you can check and reset the speed of this interface:
[H3C-GigabitEthernet0/0]speed ?
10 Specify speed of current port 10Mb/s
100 Specify speed of current port 100Mb/s
1000 Specify speed of current port 1000Mb/s
auto Enable port's speed negotiation automatically[H3C-GigabitEthernet0/0]speed auto //auto is default setting
Tip: the two interfaces of one Combo group, could not working at the same time, because they are looked as only one interface to the router。
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