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An MLD general query message is sent by the switch at the interval specified by
this attribute. When this message is received by downstream hosts, all receivers
build an MLD report for the multicast groups they have joined.
◆
Query Max Response Time – The maximum response time advertised in MLD
general queries. (Range: 5-25 seconds; Default: 10 seconds)
This attribute controls how long the host has to respond to an MLD Query
message before the switch deletes the group if it is the last member.
◆
Router Port Expiry Time – The time the switch waits after the previous querier
stops before it considers the router port (i.e., the interface that had been
receiving query packets) to have expired. (Range: 300-500 seconds;
Default: 300 seconds)
◆
MLD Snooping Version – The protocol version used for compatibility with
other devices on the network. This is the MLD version the switch uses to send
snooping reports. (Range: 1-2; Default: 2)
◆
Unknown Multicast Mode – The action for dealing with unknown multicast
packets. Options include:
Flood – Floods any received IPv6 multicast packets that have not been
■
requested by a host to all ports in the VLAN.
To Router Port – Forwards any received IPv6 multicast packets that have
■
not been requested by a host to ports that are connected to a detected
multicast router. (This is the default action.)
Web Interface
To configure general settings for MLD Snooping:
1.
Click Multicast, MLD Snooping, General.
2.
Adjust the settings as required.
3.
Click Apply.
Figure 329: Configuring General Settings for MLD Snooping
MLD Snooping (Snooping and Query for IPv6)
– 495 –
Chapter 16
| Multicast Filtering
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