Network Layer Service

BACnet network layer...

Connection State

Every thing is connected and every connection has a state.

• ROUTER_AVAILABLE - normal
• ROUTER_BUSY - router is busy
• ROUTER_DISCONNECTED - could make a connection, but hasn’t
• ROUTER_UNREACHABLE - cannot route

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Reference Structures

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class netservice.NetworkReference

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network

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router

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status

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class netservice.RouterReference

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adapter

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address

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networks

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status

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Network Service

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class netservice.NetworkServiceElement(ApplicationServiceElement)

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indication(adapter, npdu)

Parameters:

• adapter –
• npdu –

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confirmation(adapter, npdu)

Parameters:

• adapter –
• npdu –

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WhoIsRouterToNetwork(adapter, npdu)

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IAmRouterToNetwork(adapter, npdu)

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ICouldBeRouterToNetwork(adapter, npdu)

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RejectMessageToNetwork(adapter, npdu)

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RouterBusyToNetwork(adapter, npdu)

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RouterAvailableToNetwork(adapter, npdu)

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InitializeRoutingTable(adapter, npdu)

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InitializeRoutingTableAck(adapter, npdu)

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EstablishConnectionToNetwork(adapter, npdu)

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DisconnectConnectionToNetwork(adapter, npdu)

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