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IGMP Query
Use this page to configure the IGMP Query feature. Since the
RocketLinx ES7528 can only be configured by member ports of the
management VLAN, the IGMP Query can only be enabled on the
management VLAN. If you want to run IGMP Snooping feature in
several VLANs, first check to see whether each VLAN has its own
IGMP Querier.
The IGMP querier periodically sends query packets to all end-stations
on the LANs or VLANs that are connected to it. For networks with more
than one IGMP querier, a switch with the lowest IP address becomes the
IGMP querier.
IGMP Query
Version
Query Interval(s)
Query Maximum
Response Time
Apply
Unknown Multicast
This page allows you to decide how to forward the unknown multicast traffic. After enabling
IGMP Snooping, the known multicast can be filtered by IGMP Snooping mechanism and
forwarded to the member ports of known multicast groups. The other multicast streams that are
not learnt is a so-called unknown multicast, the switch decides how to forward them based on the
setting of this page.
UnKnown Multicast
Send to Query Ports
Send to All Ports
Discard
Apply
IGMP Query
Select Version 1, Version 2 or Disable. Version 1 means IGMP V1 General
Query and Version 2 means IGMP V2 General Query. The query is
forwarded to all multicast groups in the VLAN. Disable allows you to disable
IGMP Query.
The period of query (seconds) sent by querier. Enter a number between 1 and
65,535.
The span querier detect (seconds) to confirm there are no more directly
connected group members on a LAN. Enter a number between 1 and 25.
Click Apply to apply the settings.
Note: You must Save the settings (Page 137), if you want to maintain these
settings if the RocketLinx ES7528 is powered off.
The unknown multicast is sent to the Query ports. The Query port
means the port received the IGMP Query packets. It is usually the
uplink port of the switch.
The unknown multicast is flooded on all ports even if they are not
member ports of the groups.
The unknown multicast is discarded. Non-member ports will not
receive the unknown multicast streams.
Click Apply to apply the settings.
Note: You must Save the settings (Page 137), if you want to
maintain these settings if the RocketLinx ES7528 is
powered off.
RocketLinx ES7528 Industrial Managed PoE Rack Mount User Guide: 2000509 Rev. A - 97
Description
Description
IGMP Query
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