
PakBus Networking Guide
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7.5.3 Forced Routing
7.5.3.1 Tree vs. Flat Device Map
If you build the device map with the remote PakBus devices as children of the
‘base’ router you have a ‘flat’ device map configuration. Un-represented RF400
Series are assumed here with all hop sequences, network addresses, radio
addresses, and standby modes (normally “< 24 mA always on) configured the
same.
FIGURE 19. Flat Map
If you build the map with succeeding remote devices as children of the previous
device, it is a ‘tree’ configuration (un-represented RF400 Series radios are
assumed).
FIGURE 20. Tree Map
Which configuration you choose (flat or tree) makes a difference in terms of the
LoggerNet static routes produced. When a tree configuration exists and a static
route is being used, LoggerNet will route through a parent device en route to a
child device. Static routes can only govern the first hop, however, so the
difference between the flat and tree maps is small.
Once a dynamic route has been established, LoggerNet uses it in preference to
a static route.
7.5.3.2 Forced Routes
To force a route you disable LoggerNet beacons and beacons from other
devices and configure router devices with neighbor filter potential neighbors. In
the absence of beacons, LoggerNet will use the device map (static routes) in
selecting a first hop neighbor, then calculate the fastest route via neighbor lists
in network devices’ router tables to route a packet to its destination. Take, for
example, the following device map (un-represented RF400 Series are assumed):
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