User Guide

NETNode Operations Guide
Commercial in
Confidence
IP Mesh Systems
000-130
R1.8 2015-07-24
Commercial in
Confidence
Page 2-29
3. On the IGMP Configuration Pane you can select IGMP forwarding for each port.
4. You can select a forced IGMP Querier by hitting the IGMP Querier Set button.
5. This will produce a Force IGMP Querier popup box.
6. You can select to place an IGMP Querier on the local LAN and/or any of the VLANs.
7. Click OK.
8. You must hit Apply on the Configuration Pane for the changes to take effect.
Figure 2-10 IGMP Configuration
Protocols such as PIM (Protocol Independent Multicast) designed for router to router
interfaces but NETNodes do not process this type of packet.
Forcing a querier on the MESH network can be useful when no external querier is present,
and the user wishes to override the default behaviour of the MESH selecting the NETNode
with the lowest IP address. This may have poor RF connectivity. Instead the user can choose
the NETNode which has good RF connectivity.
Note: NETNode Multicast and RTSP streaming (Multicast and Uniicast) depend on IGMP
functionality.
IGMP Reference Material 2.6.4
For a more detailed understanding of multicasting and IGMP some reference material is
available to read.
http://tools.ietf.org/html/rfc2236 IGMP-v2
http://tools.ietf.org/html/rfc4541 Considerations for IGMP Snooping Switches
http://www.juniper.net/techpubs/en_US/junos11.3/topics/concept/igmp-snooping-multicast-
forwarding.html