Chapter 14
| Multicast Filtering
Layer 3 IGMP (Query used with Multicast Routing)
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◆ Group Address – IP multicast group address with subscribers directly attached
or downstream from the switch, or a static multicast group assigned to this
interface.
◆ Interface – The interface on the switch that has received traffic directed to the
multicast group address.
◆ Up Time – The time elapsed since this entry was created. (Depending on the
elapsed time, information may displayed for w:weeks, d:days, h:hours,
m:minutes, or s:seconds.)
◆ Group Mode – In INCLUDE mode, reception of packets sent to the specified
multicast address is requested only from those IP source addresses listed in the
source-list parameter. In EXCLUDE mode, reception of packets sent to the given
multicast address is requested from all IP source addresses, except for those
listed in the source-list parameter and for any other sources where the source
timer status has expired.
◆ Group Source List – A list of zero or more IP unicast addresses from which
multicast reception is desired or not desired, depending on the filter mode.
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Source Address – The address of one of the multicast servers transmitting
traffic to the specified group.
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Up Time – The time elapsed since this entry was created. (Depending on
the elapsed time, information may displayed for w:weeks, d:days, h:hours,
m:minutes, or s:seconds.)
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V3 Expire – The time remaining before this entry will be aged out. The V3
label indicates that the expire time is only provided for sources learned
through IGMP Version 3. (The default is 260 seconds.)
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Forward – Indicates whether or not traffic will be forwarded from the
multicast source.
Web Interface
To display the current multicast groups learned through IGMP:
1. Click Multicast, IGMP, Group Information.
2. Select Show Information from the Action list.
3. Select a VLAN. The selected entry must be a configured IP interface.
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