Festo CPX-FB36 Instruction Manual page 46

2. Preparing for commissioning
2-4
the device. This can reduce the response times of the parti­
cipants. The demand on the network bandwidth increases.
This does not pose a problem for smaller networks; the per­
formance for larger networks, however, can be improved with
the following functions and/or protocols.
– Use of switches with "IGMP snooping"
– Segmentation of the network
Switches with "IGMP snooping"
By using an IGMP (Internet Group Management Protocol), the
switches are able to decide to which devices the various Mul­
ticast telegrams are transferred. As a result, unnecessary
data traffic is avoided through Multicast.
Activate this function in all switches/routers used.
•
Configure at least one switch so that cyclical "IGMP quer­
•
ies" are sent. The "IGMP snooping" function cannot work
properly without these "IGMP queries".
Segmentation of the network
Split the machine into smaller network segments. This can
•
be realised without changing the network cabling, for
example, by using VLANs.
Festo CPX-FB36-EN en 1611a English