27.2.2 Configuring VLAN Tunneling

(1) Access line and backbone line settings

Points to note

The VLAN tunneling functionality uses a port VLAN to set an access line as a tunneling port, and a backbone line as a trunk port.

Command examples

1. (config)# interface gigabitethernet 1/0/1

   Switches to the Ethernet interface configuration mode for port 1/0/1.

2. (config-if)# switchport mode dot1q-tunnel

   (config-if)# switchport access vlan 10

   Sets port 1/0/1 as a tunneling port. Then, sets VLAN 10.

For details about the trunk port configuration, see 26.4 Port VLAN Command Guide.

(2) Configuring Jumbo Frames for the Backbone Line

Points to note

Because backbone lines stack VLAN tags, they handle frames at least 4 bytes larger than usual. Accordingly, jumbo frames need to be set.

Command examples

For jumbo frame configuration, see section 22.4.7, Jumbo Frame Configuration.