3com 5500-SI Manual Do Utilizador

This S5500 version has a new command, display brief interface for you to display the 
port configuration information in brief, including the port type, link state, link rate, 
duplex attribute, link type and default VLAN ID.

Switch A is connected to Switch B through Trunk port Ethernet1/0/1. Configure the 
trunk port with a default VLAN ID, so that: 

■

When receiving packets without a VLAN Tag, the port can forward them to the 
member ports belonging to the default VLAN

■

When it is sending the packets with VLAN Tag and the packet VLAN ID is the 
default VLAN ID, the trunk port will remove the packet VLAN Tag and forward the 
packet.

Figure 15   Configuring the Default VLAN for a Trunk Port

The following configurations are used for Switch A. Configure Switch B in the similar 
way.

1 Enter the Ethernet Port View of Ethernet1/0/1.

[SW5500]interface ethernet1/0/1

2 Set the Ethernet1/0/1 as a trunk port and allow VLAN 2, 6 through 50, and 100 to 

pass through.

[SW5500-Ethernet1/0/1]port link-type trunk

[SW5500-Ethernet1/0/1]port trunk permit vlan 2 6 to 50 100

3 Create the VLAN 100.

[SW5500]vlan 100

4 Configure the default VLAN ID of Ethernet1/0/1 as 100.

[SW5500-Ethernet1/0/1]port trunk pvid vlan 100

Table 50   Display the port configuration information in brief

Display the port 
configuration information 
in brief

display brief interface [ 
interface-type [ 
interface-number ] | 
interface-name ] [ | { begin | 
include | exclude } 
regular-expression ]

You can execute the display 
command in any view.

Switch A

Switch B