Configuration | Routing | Igmp; Figure 6-17. Configuration | Routing | Igmp Page - Comtech EF Data CDM-625 Installation And Operation Manual

Advanced satellite modem (18 kbps – 25 mbps)

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CDM-625 Advanced Satellite Modem

Ethernet-based Remote Product Management

6.5.4.3.3.2 Configuration | Routing | IGMP

This page permits use of Internet Group Management Protocol (IGMP) with configured multicast

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

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).