Pilz PSSnet SHL 8T MRP - Manual (Page 65)

Switching
PSSnet SHL - Web- based Interface
Pilz GmbH & Co. KG, Felix- Wankel Str. 2, 73760 Ostfildern
4.4 Multicasts
65
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 en-
abled
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 re-
spond to a query with a report mes-
sage, 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 Multi-
cast group members respond to a
query.
The Multicast group members select a
random value within the response time
for their response, to prevent all the
Multicast group members responding
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 13: IGMP Querier and IGMP settings
a.) Note the connection between the parameters Max. Response Time,
Send Interval and Group Membership Interval,
(see table 30)