C
HAPTER
17
| Multicast Filtering
Layer 2 IGMP (Snooping and Query)
– 477 –
◆ IGMP Snooping Version – Sets the protocol version for compatibility
with other devices on the network. This is the IGMP Version the switch
uses to send snooping reports. (Range: 1-3; Default: 2)
This attribute configures the IGMP report/query version used by IGMP
snooping. Versions 1 - 3 are all supported, and versions 2 and 3 are
backward compatible, so the switch can operate with other devices,
regardless of the snooping version employed.
◆ Querier Status – When enabled, the switch can serve as the Querier,
which is responsible for asking hosts if they want to receive multicast
traffic. This feature is not supported for IGMPv3 snooping.
(Default: Disabled)
WEB INTERFACE
To configure general settings for IGMP Snooping and Query:
1. Click Multicast, IGMP Snooping, General.
2. Adjust the IGMP settings as required.
3. Click Apply.
Figure 283: Configuring General Settings for IGMP Snooping
SPECIFYING STATIC
INTERFACES FOR A
MULTICAST ROUTER
Use the Multicast > IGMP Snooping > Multicast Router (Add Static
Multicast Router) page to statically attach an interface to a multicast
router/switch.
Depending on network connections, IGMP snooping may not always be able
to locate the IGMP querier. Therefore, if the IGMP querier is a known
multicast router/switch connected over the network to an interface (port or
trunk) on the switch, the interface (and a specified VLAN) can be manually
configured to join all the current multicast groups supported by the
attached router. This can ensure that multicast traffic is passed to all the
appropriate interfaces within the switch.
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