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Configuring the Switch
IP Multicast (IGMP) Features—Multimedia Traffic Control
Configuring the Switch
Parameter Description
Multicast Filtering
(IGMP)
Default: Off
Determines whether the switch or VLAN uses IGMP on a per-port basis
to manage IP Multicast traffic. If multiple VLANs are configured, you can
configure IGMP separately for each VLAN. To access a VLAN using the
HP web browser interface, enter that VLAN’s IP address as the URL.
When Off, all ports on the switch or VLAN simply forward IP multicast
traffic.
When On, enables each port on the switch or VLAN to detect IGMP
queries and report packets, and to manage IP multicast traffic.
When you use the web browser interface to enable Multicast Filtering,
the default operation is for each port in the switch or VLAN to
automatically forward or drop IGMP traffic, depending on whether there
are any IGMP hosts or multicast routers on the port.
Further Options
Available in the
Switch Console
By using the switch console, you can make these further changes to
IGMP operation:
• On a per-port basis, block or forward all IP multicast traffic.
• For all ports on the switch or VLAN, forward IP multicast traffic at high
priority. (The default is for the switch or VLAN to process IGMP traffic,
along with other traffic, in the order received.)
• Change the querier configuration setting. (By default, the switch will
act as a querier if a multicast router is not present to perform this
function.)
For more information, refer to “Configuring IGMP from the Switch
Console” (page 6-98) and “How IGMP Operates” (page 6-100.).