Westermo RedFox Series - Manual (Page 381)

Westermo OS Management Guide
Version 4.17.0-0
Chapter 18
Multicast in Switched Networks
This chapter gives a brief overview of multicast, with a focus on IP multicast, and
how it can be controlled in a WeOS device using IGMP snooping. The chapter also
covers non-IGMP capable devices and how they can be integrated into a network
with IGMP enabled.
18.1 Overview
Feature Web CLI General Description
IGMP Querier Mode X X Section 18.1.1
IGMP Query Interval X X -”-
IGMP Fast Leave X X Section 18.1.3
Low Bandwidth Networks X X Section 18.1.4
Multicast Router Ports X X Section 18.1.2
Multicast Router Timeout X Section 18.1.1
View IGMP Snooping Settings X X
Multicast, as opposed to unicast, is a very efficient means of communicating
information to more than one receiver. The main difference between multicast
and broadcast is that multicast can be controlled. When disabling its control
mechanisms, like IGMP, multicast behaves like broadcast.
Thus, when distributing IP multicast data in a switched network, switches within
the LAN can:
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