1-1 
1  Port Basic Configuration 
Ethernet Port Configuration 
Combo Port Configuration 
A Combo port can operate as either an optical port or an electrical port. Inside the device there is only 
one forwarding interface. For a Combo port, the electrical port and the corresponding optical port are 
TX-SFP multiplexed. You can specify a Combo port to operate as an electrical port or an optical port. 
That is, a Combo port cannot operate as both an electrical port and an optical port simultaneously. 
When one is enabled, the other is automatically disabled 
Follow these steps to configure the state of a double Combo port: 
To do…  Use the command…  Remarks 
Enter system view 
system-view 
— 
Enter Ethernet interface view 
interface interface-type 
interface-number 
— 
Enable a specified double Combo 
port 
undo shutdown 
Optional 
By default, of the two 
ports in a Combo port, the 
one with a smaller port ID 
is enabled. 
 
Initially Configuring a Port 
Follow these steps to initially configure a port: 
To do...  Use the command...  Remarks 
Enter system view  
system-view 
— 
Enter Ethernet port view  
interface interface-type 
interface-number 
— 
Enable the Ethernet port  
undo shutdown 
Optional 
By default, the port is enabled. 
Use the shutdown command to 
disable the port. 
Set the description string 
for the Ethernet port  
description text 
Optional 
By default, the description string of an 
Ethernet port is null. 
Set the duplex mode of 
the Ethernet port  
duplex { auto | full | half } 
Optional 
By default, the duplex mode of the 
port is auto (auto-negotiation).