Comtech EF Data CDM-625 - Configuration | Routing | IGMP; Figure 6-17. Configuration | Routing | IGMP Page

CDM-625 Advanced Satellite Modem Revision 13
Ethernet-based Remote Product Management MN-CDM625
6–33
6.5.4.3.3.2 Configuration | Routing | IGMP
This page permits use of Internet Group Management Protocol (IGMP) with configured multicast
routes.
IGMP, when enabled, responds to IGMP queries for the configured multicast routes on the
transmit side and generates IGMP queries on the receive side. If there are no active IGMP
receivers on the LAN, it will stop forwarding the multicast traffic (received from the satellite) to
the LAN.
Figure 6-17. Configuration | Routing | IGMP page
IGMP Multicast Router
• Version – Use the drop-down list to select IGMPv1, IGMPv2, or IGMPv3.
• Last Member Query Interval – This is the maximum response time inserted into group-
specific queries that are set in response to Leave Group messages, and is also amount of
time between group-specific query messages. This value may be tuned to modify the "leave
latency" of the network; a reduced value results in reduced time to detect the loss of the
last member of a group.
Enter a value, in seconds, from 1 to 25 (default = 1 second).