PLANET XRT-501 - Manual (Page 60)

IGMP report from a host for a given multicast group, the switch adds the host's port number
to the multicast table list for that group. And, when the switch hears an IGMP leave, it
removes the host's port from the multicast table list.
IGMP snooping can very effectively reduce multicast traffic from streaming and other
bandwidth intensive IP applications. While a switch that does not understand multicast will
broadcast the multicast traffic to all the ports in a collision domain (a LAN), a switch using
IGMP snooping will only forward multicast traffic to the hosts interested in that traffic. This
reduction of multicast traffic reduces the packet processing at the switch (at the cost of
needing additional memory to handle the multicast tables) and also reduces the workload
at the end hosts since their network cards (or operating system) will not have to receive
and filter all the multicast traffic generated in the network.
Click to make the IGMP Snooping effect.
3.11 Packet Captuer Utility
This feature need to work with Caputer Utility in the suppied CD-ROM, and it provides the
feauture can monitor the LAN or WAN traffic if enable this function on the Web UI, and it
can also send capture log to the specific client which installed capture tool.
Parameter Description
Enable LAN Traffic
Debugging
Enable the packet capture for LAN traffic.
Enable WAN Traffic
Debugging
Enable the packet capture for WAN traffic.
Send Debug Result To:
Send the traffic result to a fix IP address which inatlled
caputer tool.
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