Network Router User Manual
1.6. 852 to 852 Bridging Router Mode
In order to better support large installations with dozens of IP to LON routers a GRouter device
can be congured in 852 to 852 bridging router mode. In this mode one GRouter device can
bridge two logical 852 channels. When acting as an 852 bridge the router is a member of two
logical 852 channels sharing one ethernet interface. e router bridges trac between the two
channels. On the LON side the bridge looks like a LON router. is overcomes limitations of
some network managers on the number of 852 devices per channel and provides for enhanced
scalability by partitioning the 852 trac seen by any given router. Some network management
tools with an 852 interface have an articially low limitation on the number of 852 devices that
the tool can communicate with on its 852 channel. For low bandwidth 852 channels, Bridging
Router mode allows partitioning of the 852 devices so that the low bandwidth devices can be on a
dierent 852 channel from the high bandwidth devices.
e architecture of the GRouter in bridging router mode is shown below.
Fig.1.10: 852 Bridging Router Architecture
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