Edge-Core ECS4660-28F Management Manual page 248

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| VLAN Configuration

IEEE 802.1Q Tunneling

Figure 87: Enabling QinQ Tunneling

Use the VLAN > Tunnel (Configure Service) page to create a CVLAN to

SPVLAN mapping entry.

"switchport dot1q-tunnel service match cvid" on page 1356

The inner VLAN tag of a customer packet entering the edge router of a

service provider's network is mapped to an outer tag indicating the

service provider VLAN that will carry this traffic across the 802.1Q

tunnel. By default, the outer tag is based on the default VID of the edge

router's ingress port. This process is performed in a transparent

manner as described under

When priority bits are found in the inner tag, these are also copied to

the outer tag. This allows the service provider to differentiate service

based on the indicated priority and appropriate methods of queue

management at intermediate nodes across the tunnel.

Rather than relying on standard service paths and priority queuing,

QinQ VLAN mapping can be used to further enhance service by defining

a set of differentiated service pathways to follow across the service

provider's network for traffic arriving from specified inbound customer

Note that all customer interfaces should be configured as access

interfaces (that is, a user-to-network interface) and service provider

interfaces as uplink interfaces (that is, a network-to-network interface).

Use the Configure Interface page described in the next section to set an

interface to access or uplink mode.

These parameters are displayed:

Port – Port identifier. (Range: 1-28)

Customer VLAN ID – VLAN ID for the inner VLAN tag.

(Range: 1-4094)

"IEEE 802.1Q Tunneling" on page

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