Supermicro SSE-G2252, User Manual

Page: 540 / 1401

Chapter 15: Multicast Filtering
MLD Snooping (Snooping and Query for IPv6)
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excluded), TO_EX (change to excluded), and TO_IN (change to included)
records without source list.
C
ONFIGURING
MLD S
NOOPING AND
Q
UERY
P
ARAMETERS
Use the Multicast > MLD Snooping > General page to configure the switch
to forward multicast traffic intelligently. Based on the MLD query and report
messages, the switch forwards multicast traffic only to the ports that
request it. This prevents the switch from broadcasting the traffic to all
ports and possibly disrupting network performance.
CLI R
EFERENCES
•
“MLD Snooping” on page 1185
P
ARAMETERS
These parameters are displayed:
•
MLD Snooping Status – When enabled, the switch will monitor
network traffic to determine which hosts want to receive multicast
traffic. (Default: Disabled)
•
Querier Status – When enabled, the switch can serve as the querier
for MLDv2 snooping if elected. The querier is responsible for asking
hosts if they want to receive multicast traffic. (Default: Disabled)
An IPv6 address must be configured on the VLAN interface from which
the querier will act if elected. When serving as the querier, the switch
uses this IPv6 address as the query source address.
The querier will not start or will disable itself after having started if it
detects an IPv6 multicast router on the network.
•
Robustness – MLD Snooping robustness variable. A port will be
removed from the receiver list for a multicast service when no MLD
reports are detected in response to a number of MLD queries. The
robustness variable sets the number of queries on ports for which there
is no report. (Range: 2-10 Default: 2)
•
Query Interval – The interval between sending MLD general queries.
(Range: 60-125 seconds; Default: 125 seconds)
This attribute applies when the switch is serving as the querier.
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)