R3166-R3206-HP High-End Firewalls Network Management Command Reference-6PW101

Table Of Contents
391
multicast forwarding on-demand
Syntax
multicast forwarding on-demand
undo multicast forwarding on-demand
View
VLAN view
Default level
2: System level
Parameters
None
Description
Use the multicast forwarding on-demand command to enable the multicast forwarding on-demand
function in the VLAN.
Use the undo multicast forwarding on-demand command to restore the system default.
By default, multicast forwarding on-demand is disabled.
After using this command in a non-multicast VLAN with a Layer 3 multicast protocol (IGMP or PIM)
enabled on the corresponding VLAN interface, you must clear the Layer 2 port information of all IGMP
multicast groups in the VLAN and the IGMP multicast group information on the corresponding VLAN
interface; otherwise, this configuration cannot take effect.
Related commands: reset igmp group and reset igmp group port-info.
Examples
# Enable multicast forwarding on-demand in VLAN 2.
<Sysname> system-view
[Sysname] vlan 2
[Sysname-vlan2] multicast forwarding on-demand
multicast forwarding-table downstream-limit
Syntax
multicast forwarding-table downstream-limit limit
undo multicast forwarding-table downstream-limit
View
System view
Default level
2: System level
Parameters
limit: Maximum number of downstream nodes (namely, the maximum number of outgoing interfaces) for
a single multicast forwarding entry. The value ranges from 0 to the maximum allowable number.