Filter
Top Products
Configuring IEEE 802.1Q Tunneling
23-17
23
Adding an Interface to a QinQ Tunnel
Follow the guidelines in the preceding section to set up a QinQ tunnel on the switch.
Use the VLAN Port Configuration or VLAN Trunk Configuration screen to set the
access port on the edge switch to 802.1Q Tunnel mode. Also set the Tag Protocol
Identifier (TPID) value of the tunnel port if the attached client is using a nonstandard
2-byte ethertype to identify 802.1Q tagged frames.
Command Usage
• Use the 802.1Q Tunnel Status screen to set the switch to QinQ mode before
configuring a tunnel port (see “Enabling QinQ Tunneling on the Switch” on page
23-16).
• Use the TPID field to set a custom 802.1Q ethertype value on the selected
interface. This feature allows the switch to interoperate with third-party switches
that do not use the standard 0x8100 ethertype to identify 802.1Q-tagged frames.
For example, 0x1234 is set as the custom 802.1Q ethertype on a trunk port,
incoming frames containing that ethertype are assigned to the VLAN contained in
the tag following the ethertype field, as they would be with a standard 802.1Q trunk.
Frames arriving on the port containing any other ethertype are looked upon as
untagged frames, and assigned to the native VLAN of that port.
• All members of a VLAN should be set to the same ethertype.
Command Attributes
• Mode – Set the VLAN membership mode of the port. (Default: Normal)
- Normal – The port operates in its normal VLAN mode.
- 802.1Q Tunnel – Configures IEEE 802.1Q tunneling (QinQ) for a client access
port to segregate and preserve customer VLAN IDs for traffic crossing the
service provider network.
- 802.1Q Tunnel Uplink – Configures IEEE 802.1Q tunneling (QinQ) for an
uplink port to another device within the service provider network.
• 802.1Q Ethernet Type – The Tag Protocol Identifier (TPID) specifies the ethertype
of incoming packets on a tunnel port. (Range: hexadecimal 0800-FFFF;
Default: 8100)
Web – Click VLAN, 802.1Q VLAN, 802.1Q Tunnel Configuration or Tunnel Trunk
Configuration. Set the mode for a tunnel access port to 802.1Q Tunnel and a tunnel
uplink port to 802.1Q Tunnel Uplink. Set the TPID of the ports if the client is using a
non-standard ethertype to identify 802.1Q tagged frames. Click Apply.