C
HAPTER
6
| VLAN Configuration
Protocol VLANs
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◆ Mode – Sets the VLAN membership mode of the port.
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None – The port operates in its normal VLAN mode. (This is the
default.)
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Tunnel – Configures QinQ tunneling for a client access port to
segregate and preserve customer VLAN IDs for traffic crossing the
service provider network.
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Tunnel Uplink – Configures QinQ tunneling for an uplink port to
another device within the service provider network.
WEB INTERFACE
To add an interface to a QinQ tunnel:
1. Click VLAN, Tunnel.
2. Select Configure Interface from the Step list.
3. Set the mode for any tunnel access port to Tunnel and the tunnel uplink
port to Tunnel Uplink.
4. Click Apply.
Figure 72: Adding an Interface to a QinQ Tunnel
PROTOCOL VLANS
The network devices required to support multiple protocols cannot be
easily grouped into a common VLAN. This may require non-standard
devices to pass traffic between different VLANs in order to encompass all
the devices participating in a specific protocol. This kind of configuration
deprives users of the basic benefits of VLANs, including security and easy
accessibility.
To avoid these problems, you can configure this switch with protocol-based
VLANs that divide the physical network into logical VLAN groups for each
required protocol. When a frame is received at a port, its VLAN
membership can then be determined based on the protocol type being
used by the inbound packets.
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