3Com 4500 Configuration Manual page 82

[SwitchA-GigabitEthernet1/0/2] port trunk permit vlan 100
[SwitchA-GigabitEthernet1/0/2] port trunk permit vlan 200
# Configure GigabitEthernet 1/0/10 of Switch B.
[SwitchB] interface GigabitEthernet 1/0/10
[SwitchB-GigabitEthernet1/0/10] port link-type trunk
[SwitchB-GigabitEthernet1/0/10] port trunk permit vlan 100
[SwitchB-GigabitEthernet1/0/10] port trunk permit vlan 200
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