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host-prefix-only

Syntax

Hierarchy Level

Description

(MPC5 and MPC6 cards) Improve datapath performance by allowing only DHCPv4 subscribers that negotiate a 32-bit prefix to come up on the underlying VLAN interface. All DHCP subscribers on the underlying interface must negotiate a 32-bit prefix. Subscribers that negotiate a subnet prefix are not brought up. You can configure this statement for static or dynamic subscribers.

Note:

You must add or remove this statement before subscribers become active. The configuration fails if you attempt to configure the statement while subscribers are active.

Note:

You must also configure demux-source inet for the logical interface. Only inet is supported. A commit error occurs if you specify demux-source inet6 or demux-source [inet inet6].

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 17.2.