Juniper JUNOSE 11.1.X - COMMAND REFERENCE N TO Z 4-6-2010 Command Reference Manual page 1431

unknown-destination
unknown-destination { permit | deny }
Syntax
no unknown-destination
Command introduced before JUNOSe Release 7.1.0.
Release Information
Modifies the subscriber policy for packets with unknown unicast destination addresses
Description
(DAs) to define whether the subscriber (client) interfaces that belong to a bridge
group or to a VPLS instance forward (permit) or filter (deny) packets with unknown
unicast DAs. The no version restores the default value, deny packets with unknown
unicast DAs.
You cannot change the default subscriber policy values for trunk (server) interfaces
that belong to a bridge group or to a VPLS instance. You also cannot change the
default subscriber policy values for a VPLS virtual core interface, which acts as a
trunk interface. The VPLS virtual core interface represents all of the MPLS tunnels
from the router to the remote VPLS edge (VE) devices.
Options
Subscriber Policy Configuration
Mode
permit Specifies that the subscriber interface associated with the bridge group
or VPLS instance forwards packets with unknown unicast DAs
deny Specifies that the subscriber interface associated with the bridge group
or VPLS instance filters packets with unknown unicast DAs
Chapter 9: U, V, W, and Y Commands
unknown-destination
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