computer protocol

each other a group. Two PPP endpoints can also send loopback request LCP groupings (Echo-request) and loopback answer LCP groupings (echo-reply) to check the status of the link. At the end of the data transfer, a termination request LCP grouping (terminate-request) request can be terminated by one end of the link to terminate the link connection, and after receiving the termination confirmation LCP grouping (Terminate-ack) from the other side, go to the link termination state. If the link fails

local area network. , the main content of the group is: "My IP address is 192.168.1.9,mac address is: XXX, whose IP address is 192.168.1.15??"(2) The ARP process running on all hosts on the local area network receives this ARP request grouping.(3) Computer A's IP address and ARP request group the IP address of the Chinese Medicine query is consistent, the ARP request group, and to the MCU relaxed arp-response packet, the approximate content is "My IP

Computer network refers to the different geographic locations of multiple computers with independent functions and their external devices, through the communication lines connected together,Under the management and coordination of network operating system, network management software and network communication protocol, the computer system of resource sharing and

any host must send the ARP Request packet on the network as long as there is one communication, which makes the traffic on the network increase greatly;6.ARP sets the lifetime of each mapped address item that is stored in the cache, and removes it from the cache whenever it exceeds the time to live; In order to avoid hardware changes after the device hardware change, but not to communicate properly '7.ARP is to solve the problem of mapping the IP address of the host or router on the same LAN or

wasting network resources. If an error needs to be corrected, the TCP protocol of the transport layer is used. Physical Layer Transparent transmission of bit streams. The transmission unit is bit. The connection header, frame, frame usage, current, encoding, and optical modulation all belong to various physical layer specifications. Multiple specifications are commonly used in the physical layer to define all details. Example: RJ45, 802.3, etc.

Basic conceptsA set of rules, standards, or conventions established by network protocols for data exchange in a computer network.ElementsThe network protocol consists of three elements:(1)Semantics。 Semantics is the interpretation of the meaning of each part of the control information. It specifies what kind of control information needs to be emitted, as well as the actions performed and what responses are

Source: NMEA Protocol host computer C #Some time ago wrote two with the NMEA protocol of the upper machine, here to do a summary and record. To share with you, but also for the future will not forget.NMEA protocol in general, relatively simple, is a relatively mature weather protocol.There are several main parameters a

Disconnect Remote Desktop Connection ---------------------------NBSP; due to a protocol error, The client cannot connect to the remote computer. NBSP; Please reconnect to the remote computer. If the client is still unable to connect, contact your network administrator. NBSP; Remote Desktop Connection server times error: The session will be interrupted du

Today, when you connect to the server remotely, prompt Break Remote Desktop Connection --------------------------- The client could not connect to the remote computer because of a protocol error. Please reconnect to the remote computer. If the client is still unable to connect, contact your network administrator. Remote Desktop Connection server times error: Th

PrefaceReview the knowledge of the computer network and recordBodyDefinition: The HTTP protocol (hypertext Transfer Protocol, Hypertext Transfer Protocol) is the transfer protocol used to transmit hypertext to the local browser from the WWW server. I. HTTP request process (n