Westermo Lynx Series - Manual (Page 10)

10 6640-3202
Enable IGMP Querier Auto mode enabled + Querier disabled:
This unit will always act as a member in the network.
Auto mode disabled + Querier enabled:
This unit will always act as Querier in the network.
(IGMP focal point)
Auto mode enabled + Querier enabled:
This unit can act as a Querier in the network. If
more than one unit in the network is configured
with this setting, the unit with the lowest IP-address
will automatically be selected as Querier. If that
unit should fail, the unit with the second lowest
IP-address becomes the Querier, then the third low-
est and so on.
Querier interval (seconds) Indicates the interval between two IGMP query
packets. Four intervals are possible. 12, 30, 70 or 150
seconds.
Enable IGMP Fast Reconnect The IP multicast filter implementation is integrated
with the Fast Reconfiguration of Network Topology
(FRNT) protocol. This means that the multicast
filters will be updated as fast the FRNT implementa-
tion handles a topology change, i.e. approx. 20 ms.
Trunk Ports The IGMP Queriers will be forwarded on selected
ports.
Click the "Apply" button to confirm changes made to the IGMP settings.
The unit needs to be restarted before changes can take affect.