HP ProCurve series 2500 Management And Configuration Manual page 290

Configuring Advanced Features
Multimedia Traffic Control with IP Multicast (IGMP)
Configuring Per-Port IGMP Packet Control. Use this command in the
VLAN context to specify how each port should handle IGMP traffic.
Syntax:
Default:
For example, suppose you wanted to configure IGMP as follows for VLAN 1
on the 10/100 ports on the Switch 2512:
Ports 1-7
Port 8
Ports 9-12
Depending on the privilege level, you could use one of the following com-
mands to configure IGMP on VLAN 1 with the above settings:
The following command displays the VLAN and per-port configuration result-
ing from the above commands.
Configuring IGMP Traffic Priority. This command assigns "high" priority
to IGMP traffic or returns a high-priority setting to "normal" priority.
Syntax:
Default:
9-96
vlan <vid> ip igmp
[auto <port-list> | blocked <port-list> | forward <port-list>]
auto
auto Filter multicast traffic. Forward IGMP traffic to hosts on these ports
that belong to the multicast group for which the traffic is intended.
(Also forward any multicast traffic through any of these ports that is
connected to a multicast router.)
forward Forward all multicast traffic through this port.
blocked Drop all multicast traffic received from devices on these ports, and
prevent any outgoing multicast traffic from moving through these
ports.
<vid>
normal
Configures high priority for
IGMP traffic on VLAN 1.
Same as above command,
but in the VLAN 1 context
level.
Returns IGMP traffic to
"normal" priority.