3com DUA1750-2BAA01 Manual De Usuario

3Com Switch 8800 Configuration Guide 

Chapter 6  Ethernet Port Configuration

 

6-12 

Switch A

Switch B

 

Figure 6-1 Network diagram for Ethernet port configuration  

The following configurations are used for Switch A. Please configure Switch B in the 

similar way. 

Enter the Ethernet port view of GigabitEthernet2/1/1. 

[SW8800] interface gigabitethernet2/1/1 

Set the GigabitEthernet2/1/1 as a trunk port and allows VLANs 2, 6 through 50, and 

100 to pass. 

[SW8800-GigabitEthernet2/1/1] port link-type trunk 

[SW8800-GigabitEthernet2/1/1] port trunk permit vlan 2 6 to 50 100 

Create the VLAN 100. 

[SW8800] vlan 100 

Configure the default VLAN ID of GigabitEthernet2/1/1 as 100. 

[SW8800-GigabitEthernet2/1/1] port trunk pvid vlan 100 

Symptom 1: Default VLAN ID configuration fails. 

Solution: Take the following steps:  

z 

Execute the display interface or display port command to check if the port is a 

trunk port or a hybrid port. If it is neither of them, configure it as a trunk or hybrid 

port. 

z 

Then configure the default VLAN ID. 

Symptom 2: The port is in down status.  

Solution: Please check 

z 

If the cable connection is correct and if the optical fiver cable is inversely 

connected. 

z 

If the shutdown command is used on the port. 

z 

If the right optical module is inserted.