NetComm IP DSLAM NCT480 User Manual page 83

With VLAN stacking, if one ISP provisioned an end user into "VLAN 1", and another ISP provisioned one of
their end users into "VLAN 1", the two end users would not receive each other's traffic.
Item
vLAN mode
YML856 Rev3
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Figure 6-5 VLAN Mode Setting Dialog
Description
Single VLAN: The single VLAN Mode confirms to the normal 802.1Q VLAN support and
the system will continue to work as is in the current model without VLAN stacking.
Double VLAN: VLAN used in VLAN aware networks based on 802.1Q bridging is called
C-VLAN (Customer-VLAN), and can be uniquely identified by a C-VLAN tag VLAN that
encapsulates Customer traffic in Provider network is called S-VLAN or Service VLAN
and is identified by an S-VLAN ID, used as second VLAN tag. In this mode the features
can be used to meet custom VLAN stacking requirements.
Press the 'Apply' button to confirm the setting.
Table 6-3 VLAN Mode Setting Description
NCT480 IP DSLAM User Guide NCT480 IP DSLAM User Guide
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