![background image](http://html1.mh-extra.com/html/smc-networks/smc7901bra5/smc7901bra5_user-manual_1300380083.webp)
C
HAPTER
7
| Services
IGMP Proxy Configuration
– 83 –
Figure 44: IGMP Proxy Configuration
The following items are displayed on this pages:
◆
IGMP Proxy
— Enables IGMP proxy. When enabled, the upstream
interface acts as a host interface, sending query messages periodically
to the downstream interfaces, sending join and leave messages to the
upstream multicast router when a first join or last leave message is
received from a downstream interface, and sending membership
reports in response to query messages from the multicast router.
◆
Multicast Allowed
— Enables multicast forwarding. (Default: Enabled)
◆
Robustness Count
— Specifies the robustness (or expected packet
loss) for interfaces. The robustness value is used in calculating the
appropriate range for other IGMP variables. (Range: 1-255; Default: 2)
◆
Last Member Query Count
— The number of query messages sent
before the router determines that there are no remaining members of
the specific host group being queried on the interface. (Range: 1-255;
Default: 2)
◆
Query Interval
— The interval between sending IGMP general queries.
(Range: 2-31744 seconds; Default: 60 seconds)
◆
Query Response Interval
— The maximum time the system waits for
a response to general queries. (Range: 10-31744 tenths of a second;
Default: 10 seconds)
◆
Group Leave Delay
— The time duration it takes a device to stop
forwarding multicast frames after an IGMP Leave Group message has
been successfully sent to the device. (Default: 2000 ms)