Hirschmann RS20 Reference Manual page 116

Switching
Parameters Meaning
Max. Response Enter the time within which the
Time multicast group members are to
respond to a query.
The multicast group members select a
random value within the response time
for their response to prevent all
multicast group members from
responding to the query at the same
time.
Group Membership Enter the period for which a dynamic
Interval Multicast group remains entered in the
device if it does not receive any report
messages.
Table 68: IGMP Querier and IGMP settings
a. Note the connection between the parameters Max. Response Time, Transmit interval and
Group Membership Interval
The parameters
– Max. Response Time,
– Transmit Interval and
– Group Membership Interval
have a relationship to one another:
Max. Response Time < Transmit 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.
Parameters
Max. Response Time
Transmit Interval
Group Membership Interval
Table 69: Value range for Max. Response Time, Transmit Interval and Group
Membership Interval
For "Transmit interval" and "Max. Response Time",
– select a large value if you want to reduce the load on your network and
can accept the resulting longer switching times,
– select a small value if you require short switching times and can accept
the resulting network load.
116
(see table 69.)
Protocol Possible values
Version
1, 2 1-25 seconds
3 1-3,598 seconds
1, 2, 3 2-3,599 seconds
1, 2, 3 3-3,600 seconds
4.4 Multicasts
Possible values Default setting
Protocol Version 10 s
- 1, 2: 1-25 s
a
- 3: 1-3598 s
a
3-3600 s 260 s
Default setting
10 seconds
125 seconds
260 seconds
Release 8.0 05/2013
RM GUI L2E