Silvus StreamCaster 4000 Series, Руководство пользователя

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StreamCaster 4000 series MIMO Radio User Manual
9/2/20
10017C000 Silvus Technologies Confidential
Page
68
Figure 31 Multicast Configuration Page
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IGMP Snooping : Enable or Disable IGMP Snooping for Multicast traffic
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Action for un-registered multicast traffic : This option controls default behavior for local and mesh
multicast traffic that has no IGMP snooping entries. If set to ‘Block’, all unregistered multicast
traffic will be block. If set to ‘Send to All’, all unregistered multicast traffi
c will be sent to all radios.
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Custom Pruning/Augmenting : Enable or Disable the Multicast group. The format for the field is
Multicast_ip_address, receiver_id1, … receiver_idn If IGMP snooping is disabled, multicast traffic
will only be forwarded to the radios in this list. If enabled, multicast traffic will only be forwarded
to radios in this list that have client devices requesting this traffic. Traffic may be forced to go to
a radio by adding the node with postfix “+”. Traffic may be prevented from reachi ng a radio by
adding postfix “ - ”. (e.g. 224.50.50.50 1234, 1235 -, 1236+) If receiver_id is -1, it will stop multicast
traffic for this group.
Multicast Pruning Examples:
Data for multicast group 224.50.50.51 will be received only by radios with node-ids 1131 and 1261:
224.50.50.51, 1131, 1261
Data for multicast group 224.50.50.51 will be discarded at the transmitter and not put on the air:
224.50.50.51, -1
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MANET Multicast/Broadcast : Enable or Disable the MANET Multicast/Broadcast feature. The
broadcast mode can be either single-hop or multi-hop. In single-hop mode, multicast traffic will
be transmitted to all radios reachable in a single hop. Traffic will terminate at these nodes. In
multi-hop mode, multicast traffic will reach all radios in the mesh, subject to IGMP/custom
pruning if applicable. MCS, and fragmentation threshold must be designated for these
transmissions. If the MCS is set to Auto, select the Auto MCS Lower Bound. This will force the
selected MCS to be at least the chosen MCS or higher, if the channel permits. Multicast Groups is
a list of multicast IPv4 addresses separated by comma (,), e.g. 224.50.50.50, 224.50.50.51. Traffic
for these multicast groups will be sent using this Broadcast feature. Target latency will make the
node wait for the time set in parameter and collect all data and construct forward error correction
packets to send out. Higher latencies are better since the low density parity check code can
generate more robust codes resulting in better error correction on the receiver. Amount of Error
Correction is the amount of additional error correction packets sent along with the data packets.