HP 6125XLG R2306-HP 6125XLG Blade Switch IP Multicast Configuration Guide - Page 28
Configuring static ports, Enabling IGMP snooping fast-leave processing, The IGMP snooping
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Configuring static ports If all hosts attached to a port are interested in the multicast data addressed to a particular multicast group or the multicast data that a particular multicast source sends to a particular group, you can configure the port as a static member port for the specified multicast group or the specified multicast source and group. You can also configure a port as a static router port, through which the switch can forward all the multicast traffic it receives. When you configure static ports, follow these guidelines: • A static member port does not respond to queries from the IGMP querier. When you configure a port as a static member port or cancel this configuration on the port, the port does not send unsolicited IGMP reports or IGMP leave messages. • Static member ports and static router ports never age out. To remove such a port, use the corresponding undo command. To configure static ports: Step 1. Enter system view. 2. Enter Ethernet interface view or aggregate interface view. 3. Configure the port as a static member port. 4. Configure the port as a static router port. Command system-view interface interface-type interface-number igmp-snooping static-group group-address [ source-ip source-address ] vlan vlan-id igmp-snooping static-router-port vlan vlan-id Remarks N/A N/A By default, a port is not a static member port. By default, a port is not a static router port. Enabling IGMP snooping fast-leave processing The IGMP snooping fast-leave processing feature enables the switch to process IGMP leave messages quickly. When a port that is enabled with the IGMP snooping fast-leave processing feature receives an IGMP leave message, the switch immediately removes that port from the forwarding entry for the multicast group specified in the message. Then, when the switch receives IGMP group-specific queries for that multicast group, it does not forward them to that port. When you configure the IGMP snooping fast-leave processing feature, follow these guidelines: • In a VLAN, you can enable IGMP snooping fast-leave processing on ports that have only one receiver host attached. If a port has multiple hosts attached, you should not enable IGMP snooping fast-leave processing on this port. Otherwise, other receiver hosts attached to this port in the same multicast group cannot receive the multicast data destined to this group. • You can enable IGMP snooping fast-leave processing either for the current port in proper interface view or globally for all ports in IGMP-snooping view. If the configurations are made both in interface view and IGMP-snooping view, the configuration made in interface view takes priority. To enable IGMP snooping fast-leave processing globally: Step 1. Enter system view. Command system-view Remarks N/A 21