Web Management Guide-R02

Table Of Contents
– 519 –
14 Multicast Filtering
This chapter describes how to configure the following multicast services:
IGMP Snooping – Configures snooping and query parameters.
IGMP Filtering and Throttling – Filters specified multicast service, or throttles
the maximum of multicast groups allowed on an interface.
MLD Snooping – Configures snooping and query parameters for IPv6.
MLD Filtering and Throttling – Filters specified multicast service, or throttles the
maximum of multicast groups allowed on an interface.
Filtering MLD Query Packets on an Interface – Configures the interface to drop
MLD query packets.
Multicast VLAN Registration for IPv4 – Configures a single network-wide
multicast VLAN shared by hosts residing in other standard or private VLAN
groups, preserving security and data isolation.
Overview
Multicasting is used to support real-time applications such as video conferencing
or streaming audio. A multicast server does not have to establish a separate
connection with each client. It merely broadcasts its service to the network, and
any hosts that want to receive the multicast register with their local multicast
switch/router. Although this approach reduces the network overhead required by a
multicast server, the broadcast traffic must be carefully pruned at every multicast
switch/router it passes through to ensure that traffic is only passed on to the hosts
which subscribed to this service.