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• JUNOS Subscriber Access Guide, Release 10.0 

Subscriber Interfaces for Subscriber Access, Release 10.0

You can identify subscribers statically or dynamically. To identify subscribers statically, you can reference a static VLAN interface or a static IP demux interface in a dynamic profile. To identify subscribers dynamically, you create variables for IP demux interfaces that are dynamically created by DHCP when subscribers log in. IP demultiplexing (demux) interfaces are logical interfaces that share a common, underlying logical interface. IP demux interfaces can be used to identify specific subscribers (authenticated users) in an access network or to separate individual circuits. The subscriber interfaces can provide different levels of services for individual subscribers in an access network. For example, you can apply CoS parameters for each subscriber.