197
Trunk port
Port10 of PE1 and PE2
Configuration procedure is as follows:
PE1:
Switch(Config)#vlan 3
Switch(Config-Vlan3)#switchport interface ethernet 1/1
Switch(Config-Vlan3)#exit
Switch(Config)#interface ethernet 1/1
Switch(Config-Ethernet1/1)# dot1q-tunnel enable
Switch(Config-Ethernet1/1)#dot1q-tunnel tpid 9100
Switch(Config-Ethernet1/1)# exit
Switch(Config)#interface ethernet 1/10
Switch(Config-Ethernet1/10)#switchport mode trunk
Switch(Config-Ethernet1/10)#exit
Switch(Config)#
PE2:
Switch(Config)#vlan 3
Switch(Config-Vlan3)#switchport interface ethernet 1/1
Switch(Config-Vlan3)#exit
Switch(Config)#interface ethernet 1/1
Switch(Config-Ethernet1/1)# dot1q-tunnel enable
Switch(Config-Ethernet1/1)#dot1q-tunnel tpid 9100
Switch(Config-Ethernet1/1)# exit
Switch(Config)#interface ethernet 1/10
Switch(Config-Ethernet1/10)#switchport mode trunk
Switch(Config-Ethernet1/10)#exit
Switch(Config)#
6.3.5 Dot1q-tunnel Troubleshooting
&
Enabling dot1q-tunnel on Trunk port will make the tag of the data packet
unpredictable which is not required in the application. So it is not recommended to
enable dot1q-tunnel on Trunk port except the VLAN-translation is in operation.
STP/MSTP
PVLAN
QoS/ACL
GVRP
802.1x
IGMP
Snooping