BS ISO 11783-4:2011 pdf download.Tractors and machinery for agriculture and forestry-Serial control and communications data network Part 4: Network layer.
4.1.2 Database management
The NIU can also suppcwt bridge and database management (6.6), enabling access to, and configuration of, internal databases within the interconnection unit itself.
EXAMPtE Jlhough a bndge separates two media segments and the message traffic on each, the ne(woik *11 sf111 be Considered a single netwod m terms of Its address space and entlf.ers. as a result of the communication made possible by the interconnection unIt.
4.1.3 Other netwod layer functions
Network interconnection units can perform other functions beyond those defined in this part of ISO 11783, as provided by the supplier or as dictated by the network configuration ISO 11783-1 provides examples of these other functions,
4.2 Role of the network layer
The main role of the network layer Is management of the transfer of messages between segments. The network layer includes a number of different types of network Interconnection units which, depending on the functions required, can provide these services:
the repeater forwards the messages (7.1);
the bridge (7,2) filters messages and manages the message-filter database;
the router (7.3) uses address translation to enable a network segment to appear as a single CF to other parts of the network;
the gateway (7.4) repackages parameters into different messages for easier transfer, reception and interpretation by CFs.
The NIU can also suppcwt bridge and database management (6.6), enabling access to, and configuration of, internal databases within the interconnection unit itself.
EXAMPtE Jlhough a bndge separates two media segments and the message traffic on each, the ne(woik *11 sf111 be Considered a single netwod m terms of Its address space and entlf.ers. as a result of the communication made possible by the interconnection unIt.
4.1.3 Other netwod layer functions
Network interconnection units can perform other functions beyond those defined in this part of ISO 11783, as provided by the supplier or as dictated by the network configuration ISO 11783-1 provides examples of these other functions,
4.2 Role of the network layer
The main role of the network layer Is management of the transfer of messages between segments. The network layer includes a number of different types of network Interconnection units which, depending on the functions required, can provide these services:
the repeater forwards the messages (7.1);
the bridge (7,2) filters messages and manages the message-filter database;
the router (7.3) uses address translation to enable a network segment to appear as a single CF to other parts of the network;
the gateway (7.4) repackages parameters into different messages for easier transfer, reception and interpretation by CFs.
