Setting The Maximum Response Time; Setting The Last Listener Query Count; Setting The Last Listener Query Interval; Setting The Robustness - Dell PowerConnect B-RX Configuration Manual

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Multicast Listener Discovery and source specific multicast protocols (MLDv2)

Setting the maximum response time

You can define the maximum amount of time a multicast listener has to respond to queries by
entering a command such as the following.
BigIron RX(config)#ipv6 mld max-response-time 5
Syntax: ipv6 mld max-response-time <seconds>
Specify 1 – 64 for <seconds>. The default is 5 seconds.

Setting the last listener query count

The Last Listener Query Count is the number of Multicast-Address- Specific Queries sent before the
switch assumes there are no remaining listeners for an address on a link. You can set the last
listener query count by entering a command such as the following.
BigIron RX(config)#ipv6 mld llqc 5
Syntax: ipv6 mld llqc <seconds>
Specify 2 – 7 for <seconds>.

Setting the last listener query interval

The Last Listener Query Interval is the Maximum Response Delay inserted into
Multicast-Address-Specific Queries sent in response to Done messages, and is also the amount of
time between Multicast- Address-Specific Query messages. When the device receives an MLDv1
leave message or an MLDv2 state change report, it sends out a query and expects a response
within the time specified by this value. Using a lower value allows members to leave groups more
quickly. You can set the last listener query interval by entering a command such as the following.
BigIron RX(config)#ipv6 mld llqi 5
Syntax: ipv6 mld llqi <seconds>
Specify 1 – 10 for <seconds>.

Setting the robustness

You can specify the number of times that the switch sends each MLD message from this interface.
Use a higher value to ensure high reliability from MLD. You can set the robustness by entering a
command such as the following.
BigIron RX(config)#ipv6 mld robustness 3
Syntax: ipv6 mld robustness<seconds>
Specify 2 – 7 for <seconds>. Default is 2

Setting the version

You can use this command to set the MLD version (1 or 2) globally. You can select the version of
MLD by entering a command such as the following.
BigIron RX(config)#ipv6 mld version 2
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