Switching
100
4.4
Multicasts
RM Web
Release
6.0
07/2010
The parameters
– Max. Response Time,
– Send Interval and
– Group Membership Interval
have a relationship to each other:
Max. Response Time < Send Interval < Group Membership
Interval.
If you enter values that contradict this relationship, the device then
replaces these values with a default value or with the last valid values.
Parameter Meaning Value range Default setting
IGMP Querier
IGMP Querier
enabled
Switch query function on/off on/off off
Protocol Version Select IGMP version 1, 2 or 3. 1, 2, 3 2
Send Interval Enter the interval at which the switch
sends query packets.
All IGMP-capable terminal devices
respond to a query with a report
message, thus generating a network
load.
2-3599 s
a
125 s
IGMP settings
Current querier IP
address
Display the IP address of the router/
switch that contains the query function.
Max. Response
Time
Enter the time within which the
Multicast group members respond to a
query.
The Multicast group members select
random values within the response
time for their response, so that all the
Multicast group members do not
respond to the query at the same time.
Protocol Version
- 1,2: 1-25 s
a
- 3: 1-3598 s
a
10 s
Group Membership
Interval
Enter the period for which a dynamic
Multicast group remains entered in the
device if it does not receive any report
messages.
3-3600 s
a
260 s
Table 33: IGMP Querier and IGMP settings
a.) Note the connection between the parameters Max. Response Time,
Send Interval and Group Membership Interval, (see table 34)
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