• Related Topics
• Configuring an IP Demultiplexing Interface
• Configuring an IP Demux Underlying Interface
• Configuring a VLAN Demultiplexing Interface
• Configuring a VLAN Demux Underlying Interface
• Specifying the Demux Underlying Interface
• Configuring IP Demux Prefixes
• Binding VLAN IDs to Logical Interfaces
• Associating VLAN IDs to VLAN Demux Interfaces
• Example: Configuring a Demux Interface
• Subscriber Interfaces and Demultiplexing Overview

Demultiplexing Interface Overview

Demultiplexing (demux) interfaces are logical interfaces that share a common, underlying interface. You can configure either IP demultiplexing interfaces or VLAN demultiplexing interfaces. IP demux interfaces use the IP source or destination address to demultiplex received packets when the subscriber is not uniquely identified by a Layer 2 circuit. VLAN demux interfaces use the VLAN ID to demultiplex received packets when the subscriber is not uniquely identified.

Note: You can also configure demux interfaces dynamically. For information about how to configure dynamic IP demux or dynamic VLAN demux interfaces, see the Subscriber Access Configuration Guide.