Nortel BSG12aw 1.0, Руководство по настройке

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Multicast advanced configuration 155
Configuration Guide
Variable definitions
The following table describes the variables and values for configuring IGMP basic settings.
IGMP snooping timer configuration parameters
The following section describes the parameters for configuration of the IGMP snooping timer
located at
Configuration,
Multicast, IGMP Snooping, Timer tab
.
Variable Value
IGMP Snooping Status Select the global status of IGMP Snooping in the router.
Select Enable to enable IGMP Snooping in all the existing VLAN
interfaces.
Select Disable to disable IGMP Snooping in all the existing VLAN
interfaces.
The default value is Disabled.
Proxy Reporting Select the Proxy Reporting status in the router.
If you select Enable, the router generates reports and forwards them to the
router based on the available host information.
If you select Disable, the switch forwards all V3 reports and a single V2
report to the router.
The default value is Enable.
Multicast Forwarding Mode Select the Multicast Forwarding Mode.
Select IP Based if the hardware supports programming of S, G, and *, G
entries.
Select MAC Based if the hardware supports only MAC-based multicast
tables.
This configuration takes effect when you reboot the system.
The default value is IP Based.
Report Forwarding Select whether the reports are forwarded on all the ports or only on the
router ports.
Select All Ports to forward reports on all the ports.
Select Router Ports to forward the reports only on the router ports.
The default value is Router Ports.
Retry Count Type the maximum number of group- specific queries sent on a port on
reception of an IGMPv2 leave message.
When the switch receives leave message on a port, it sends a
group-specific query to check if there any other interested receivers for the
group.
Retry Count defines the maximum number of queries sent by the switch
before deleting the port from the group membership information in the
forwarding database.
If the maximum retry count exceeds the Retry Count, then the port is
deleted from the multicast group membership information in the forwarding
database. The received leave message is forwarded onto the router ports
if no interested receivers are in the group.
The value ranges from 1 to 5.
The default value is 2.