## Network Access

The term network management in the J1939 context must not be confused with the network management in the usual automotive environment. The network management in the automotive environment is used to place the ECUs of a network or subnetwork in a defined and “agreed” idle state while not losing any information from the bus.

J1939 defines the term as an access control for communication (admission to the network) and administration of device addresses in dynamic networks. The device address and the NAME play an essential role in this (see chapter Names and Addresses).