3Com MSR 50 Series Configuration Manual page 1749

# Create VLAN 10.
[Sysname] vlan 10
[Sysname-vlan10] quit
# Specify port Ethernet 1/3 to use VLAN10 as its guest VLAN.
[Sysname] dot1x guest-vlan 10 interface ethernet 1/1
You can use the display current-configuration or display interface ethernet
1/1 command to view your configuration. You can also use the display vlan 10
command in the following cases to verify whether the configured guest VLAN
functions:
When no users log in.
■
When a user fails the authentication.
■
When a user goes offline.
■
Guest VLAN Configuration Example 1749