What are the main functions of a network connector?

I. What are the main functions of network connectors? Network connectors have the ability to segment and assemble packets.1. Network connectors have the ability to transform protocols. Gateway has from the physical layer to the transportation layer, and even the application layer of the various layers of the protocol conversion capabilities. Of course, for different occasions of the gateway, the ability to transform the protocol can be different, for example: some only need to be responsible for the physical layer to the transport layer of the protocol transformation, some need to complete the physical layer to the application layer of the protocol transformation. 2. Network connectors with traffic control and congestion control capabilities. Interconnection of different operating rates of the network, the need for some kind of flow control organization to control the input to other networks on the information flow, gateway commonly used flow control methods are: the source station only when permitted to transmit; forcing the source station to reduce the load they supply to the network; the choice of consulting services, this consulting service to tell the source station due to network congestion or other abnormalities, it is now sent to the packet has been scrapped. 3. Network connectors have the ability to reliably transmit information between networks. In order to improve the reliability of the interconnected network, often choose some of the following methods: to prevent the packet in a number of gateways in the unrestricted cycle; to the source or other gateways to send error reports; packets from the source to the destination station of the path between the stalking; provide inter-network information retransmission function.

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