Configuring Advanced Features

Multimedia Traffic Control with IP Multicast (IGMP)

Blocked: Causes the switch to drop all IGMP transmissions received from a specific port and to block all outgoing IP Multicast packets for that port. This has the effect of preventing IGMP traffic from moving through specific ports.

Forward: Causes the switch to forward all IGMP and IP multicast transmissions through the port.

 

Querier: In the default state (enabled), eliminates the need for a multicast

 

router. In most cases, HP recommends that you leave this parameter in

 

the default “enabled” state even if you have a multicast router performing

 

the querier function in your multicast group. For more information, see

 

“How IGMP Operates” on page 9-97.

 

 

N o t e

Whenever IGMP is enabled, the switch generates an Event Log message

 

indicating whether querier functionality is enabled.

 

For more information, refer to “How IGMP Operates” on page 9-97.

 

CLI: Configuring and Displaying IGMP

IGMP Commands Used in This Section

show ip igmp configuration

page 9-94

ip igmp

page 9-95

high-priority-forward

page 9-96

auto <[ethernet] <port-list>

page 9-96

blocked <[ethernet] <port-list>

page 9-96

forward <[ethernet] <port-list>

page 9-96

querier

page 9-97

show ip igmp

See “IP Multicast (IGMP) Status” on page 10-17

 

 

For a listing of the full CLI command set, including syntax and options, see the CLI command reference available on the HP ProCurve website at:

http://www.hp.com

Features

Configuring Advanced

 

 

9-93

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HP 2500 CLI Configuring and Displaying Igmp, How Igmp Operates on, Indicating whether querier functionality is enabled