Network (bacnet-BacnetNetworkLayer)

This component represents the generic superclass for all network layer implementations. In practical terms, it is the container for all network ports, plus the BACnet router table. Network resides under Bacnet Comm of a BacnetNetwork or BacnetWsNetwork.

The screen capture shows an Ip Port. The same properties define an Ethernet Port and an Mstp Port (available only when using the bacnet module).

Figure 35. Bacnet Comm Network properties

You access these properties by expanding Config > Drivers > BacnetNetwork > Bacnet Comm and double-clicking the Network node.

Property	Value	Description
Router Table	additional properties	Displays router properties when a network includes more than one network port.
IP Port	additional properties	Configures IP port properties.
Routing Enabled	`true` (default) or `false`	Turns network routing on and off. `true` enables multiple network ports. `false` disables multiple network ports. If the driver determines that the network is configured with multiple routes to the same network segment, it sets this property to false. Configuring multiple routes to the same network segment results in message flood issues and is considered a mis-configuration.
Maintain Routing Enabled	`true` or `false` (default)	Controls the routing of messages. `true` overrides a false setting of `Routing Enabled`. `false` allows the driver to disable routing when it detects a router loop. If `Routing Enabled` is set to `false` because of a router loop or because multiple routes lead to the same segment, this property allows you to override the automatic setting.
Minimum Router Update Time	milliseconds (defaults to 500 ms)	Specifies the minimum amount of time allowed to update the router.
Router Discovery Timeout	milliseconds (defaults to 5000 ms)	Sets how long the system waits to discover the router. When this time passes, the system reports an error.
Termination Time Value	seconds (defaults to 120 s)	Defines a time, which system database will request with the PTP connection open, in the absence of any packet traffic.

Network (bacnet-BacnetNetworkLayer)

Figure 35. Bacnet Comm Network properties

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