Справочное Руководство для 3com S7906E

 

1-27 

2: System level 

None 

Use the shutdown command to shut down an Ethernet interface. 

Use the undo shutdown command to bring up an Ethernet interface. 

By default, an Ethernet interface is in the up state. 

In certain circumstances, modification to the interface parameters does not immediately take effect, and 

therefore, you need to shut down the relative interface to make the modification work. 

Note that in case of a double Combo port, only one interface (either the optical port or the electrical port) 

is active at a time. That is, once the optical port is active (after you execute the undo  shutdown 

command), the electrical port will be inactive automatically, and vice versa. 

# Shut down interface Ethernet 2/0/1. 

<Sysname> system-view 

[Sysname] interface ethernet 2/0/1 

[Sysname-Ethernet2/0/1] shutdown 

# Bring up interface Ethernet 2/0/1. 

<Sysname> system-view 

[Sysname] interface ethernet 2/0/1 

[Sysname-Ethernet2/0/1] undo shutdown 

speed { 10 | 100 | 1000 | auto } 

undo speed 

Ethernet interface view 

2: System level 

10: Specifies the interface rate as 10 Mbps. The optical interface of a Combo port does not support the 

10 keyword.  

100: Specifies the interface rate as 100 Mbps. The optical interface of a Combo port does not support 

the 100 keyword.  

1000: Specifies the interface rate as 1,000 Mbps.