3Com 8807 Configuration Manual page 854

854 C 76: Q Q C
HAPTER IN ONFIGURATION
Switch B only permits packets of VLAN 10.
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It is desired that packets of VLANs other than VLAN 10 can be exchanged
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between the networks connected to Switch A and Switch C.
Network diagram
Figure 200 Network diagram for adjusting TPID values
GE2/1/1 (access VLAN 10, VLAN VPN port) GE2/1/1 (access VLAN 10, VLAN VPN port)
Switch A Switch A
GE2/1/2 (trunk permit VLAN 10, VLAN-VPN uplink port) GE2/1/2 (trunk permit VLAN 10, VLAN-VPN uplink port)
GE3/1/2 (trunk permit VLAN 10 and TPID is 0x9100) GE3/1/2 (trunk permit VLAN 10 and TPID is 0x9100)
Switch B Switch B
GE3/1/1 (trunk permit VLAN 10 and TPID is 0x9100) GE3/1/1 (trunk permit VLAN 10 and TPID is 0x9100)
GE2/1/2 (trunk permit VLAN 10, VLAN-VPN uplink port) GE2/1/2 (trunk permit VLAN 10, VLAN-VPN uplink port)
Switch C Switch C
GE2/1/1 (access VLAN 10, VLAN VPN port) GE2/1/1 (access VLAN 10, VLAN VPN port)
Configuration Procedure
1 Configure Switch A and Switch C. As the configuration performed on Switch A
and Switch C is the same, configuration on Switch C is omitted.
# Set the TPID value of the VLAN-VPN uplink port to 0x9100.
<SwitchA>system-view
System View: return to User View with Ctrl+Z.
[SwitchA]vlan-vpn tpid 9100
[SwitchA]vlan 10
[SwitchA-vlan10]quit
# Configure the GigabitEthernet2/1/2 port to be a VLAN-VPN uplink port and add
it to VLAN 10 (a trunk port).
[SwitchA]interface GigabitEthernet2/1/2
[SwitchA-GigabitEthernet2/1/2]port link-type trunk
[SwitchA-GigabitEthernet2/1/2]port trunk permit vlan 10
[SwitchA-GigabitEthernet2/1/2]vlan-vpn uplink enable
# Configure the GigabitEthernet2/1/1 port to be a VLAN VPN port and add it to
VLAN 10 (an access port).
[SwitchA]interface GigabitEthernet2/1/1
[SwitchA-GigabitEthernet2/1/1]port access vlan 10
[SwitchA-GigabitEthernet2/1/1]vlan-vpn enable
[SwitchA-GigabitEthernet2/1/1]quit
2 Configure Switch B