Alcatel-Lucent 6850-48 Reference Guide
IP Multicast Switching Commands
OmniSwitch CLI Reference Guide
September 2009
page 55-5
ip multicast flood-unknown
Enables or disables the flooding of new multicast packets until the multicast group membership table is
updated.
updated.
ip multicast flood-unknown {enable | disable}
Syntax Definitions
enable
Enable the flooding of multicast packets until membership table
updated.
updated.
disable
Disable the flooding of multicast packets.
Defaults
Platforms Supported
OmniSwitch 6400, 6850, 6855, 9000, 9000E
Usage Guidelines
• When flood-unknown is enabled and IP multicast switching is enabled, multicast packets are flooded
on the VLAN until the multicast group membership table is updated. They are then forwarded based on
the multicast group membership table.
the multicast group membership table.
• When flood-unknown is enabled and IP multicast switching is disabled, all multicast traffic will be
flooded on the VLAN.
• When flood-unknown is disabled and IP multicast switching is enabled, multicast packets are not
flooded on the VLAN but will be forwarded once the multicast group membership table is updated.
• If IP multicast switching is disabled and flood-unknown is disabled, all multicast packets are flooded
on the VLAN.
Examples
-> ip multicast flood-unknown enable
-> ip multicast flood-unknown disable
Release History
Release 6.3.4; command was introduced.
parameter
default
enable | disable
disable