C613-50631-01 Rev A Command Reference for IE340 Series 1758
AlliedWare Plus™ Operating System - Version 5.5.3-0.x
MULTICAST COMMANDS
IP
MULTICAST FORWARD-FIRST-PACKET
ip multicast forward-first-packet
Overview Use this command to enable multicast to forward the first multicast packets
coming to the device.
Use the no variant of this command to disable this feature.
Syntax
ip multicast forward-first-packet
no ip multicast forward-first-packet
Default By default, this feature is disabled.
Mode Global Configuration
Usage notes If this command is enabled, the device will forward the first packets in a multicast
stream that create the multicast route, possibly causing degradation in the quality
of the multicast stream, such as the pixelation of video and audio data.
NOTE: If you use this command, ensure that the ip igmp snooping command is
enabled, the default setting, otherwise the device will not process the first packets of
the multicast stream correctly.
The device will forward the first multicast packets to all interfaces which are on the
same VLAN as those which asked for this multicast group.
Examples To enable the forwarding of the first multicast packets, use the following
commands:
awplus# configure terminal
awplus(config)# ip multicast forward-first-packet
To disable the forwarding of the first multicast packets, use the following
commands:
awplus# configure terminal
awplus(config)# no ip multicast forward-first-packet