ECS4660-28F_Management Guide-R03

C HAPTER 15 | Multicast Filtering
Multicast VLAN Registration for IPv4
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When a source port receives a query message, it will be
forwarded to all downstream receiver ports.
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When a receiver port receives a query message, it will be
dropped.
◆ Robustness Value – Configures the expected packet loss, and thereby
the number of times to generate report and group-specific queries.
(Range: 1-255; Default: 1)
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This parameter is used to set the number of times report messages
are sent upstream when changes are learned about downstream
groups, and the number of times group-specific queries are sent to
downstream receiver ports.
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This parameter only takes effect when MVR proxy switching is
enabled.
◆ Proxy Query Interval – Configures the interval at which the receiver
port sends out general queries. (Range: 2-31744 seconds;
Default: 125 seconds)
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This parameter sets the general query interval at which active
receiver ports send out general queries.
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This interval is only effective when proxy switching is enabled.
◆ Source Port Mode – Configures the switch to forward any multicast
streams within the parameters set by a profile, or to only forward
multicast streams which the source port has dynamically joined.
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Always Forward – By default, the switch forwards any multicast
streams within the address range set by a profile, and bound to a
domain. The multicast streams are sent to all source ports on the
switch and to all receiver ports that have elected to receive data on
that multicast address. (This is the default setting.)
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Dynamic – When dynamic mode is enabled, the switch only
forwards multicast streams which the source port has dynamically
joined. In other words, both the receiver port and source port must
subscribe to a multicast group before a multicast stream is
forwarded to any attached client. Note that the requested streams
are still restricted to the address range which has been specified in
a profile and bound to a domain.