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Home Documentation Junos OS Junos CLI Reference CLI Reference U

Junos CLI Reference

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Junos CLI Reference
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underlying-interface (demux0)

date_range 20-Nov-23
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Syntax

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underlying-interface underlying-interface-name;

Hierarchy Level

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[edit dynamic-profiles profile-name interfaces demux0 interface-name unit unit logical-unit-number demux-options]

Description

Configure the underlying interface on which the demultiplexing (demux) interface is running.

CAUTION:

Before you make any changes to the underlying interface for a demux0 interface, you must ensure that no subscribers are currently present on that underlying interface. If any subscribers are present, you must remove them before you make changes.

Options

underlying-interface-name—Either the specific name of the interface on which the DHCP discover packet arrives or one of the following interface variables:

  • $junos-underlying-interface when configuring dynamic IP demux interfaces.

  • $junos-interface-ifd-name when configuring dynamic VLAN demux interfaces.

The variable is used to specify the underlying interface when a new demux interface is dynamically created. The variable is dynamically replaced with the underlying interface that DHCP supplies when the subscriber logs in.

Note:

Logical demux interfaces are currently supported on Gigabit Ethernet, Fast Ethernet, 10-Gigabit Ethernet, or aggregated Ethernet interfaces.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 9.3.

Support for aggregated Ethernet introduced in Junos OS Release 9.4.

Related Documentation

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