tcp ip illustrated

TCP/IP protocolDanbo 2015-7-2This article for reference TCP/IP detailed volume one, some knowledge points added to the author's own understanding, if there are errors, please correct me, you can contact me Weibo!The TCP packet format and

TCP provides a connection-oriented, reliable byte-stream service.Connection-oriented means that the sending and receiving parties must establish a TCP connection before exchanging data. By the way, a TCP connection has only two sides, so broadcast and multicast cannot be applied to TCP.The byte stream refers to two applications that exchange a byte stream of 8bit

tcp/ip-tcp Author: Danbo 2015-8-23 TCP provides reliability in the following ways:-The application data is split into a block of data that TCP considers most appropriate to send.-When TCP sends a segment, it initiates a timer, wa

Many manufacturers produce various models of computers that run on different operating systems, but the TCP/IP protocol family allows them to communicate with each other. TCP/IP is not a protocol, but a general name of a protocol family, which contains the IP protocol, IMCP

Tcp-ip detailed volume 3:TCP transaction protocol, HTTP, NNTP, and UNIX domain protocol "PDF" Download Link:https://u253469.pipipan.com/fs/253469-230062539Content IntroductionThe TCP. IP Detail (Volume 3): CP Transaction Protocol. The HP.P and UIX domain protocols are the co

. PreprocessingThis section describes the TCP message segments received for preprocessing. The approximate flow of processing is as follows:1. Obtain the IP and TCP headers from the first mbuf.2. Verify the test and the TCP.3. Verify the TCP offset field.4. Place the

1.TCP of services虽然TCP和UDP最后都会通过IP层传输，但是二者却为用户提供完全不同的服务，TCP提供的是面向连接的，可靠的字节流服务面向连接意味着俩个使用TCP的应用在彼此交换数据之前必须先建立一个TCP连接。可以用打电话比喻TCP的连接，要想俩个人通话，首先一方要拨通另一方的电话，等待另一方接通电话之后才可以通话，

need to go through 2MSL (maximum message segment lifetime) to return to the close state? This is because although both sides agreed to close the connection, and I received the four messages are also coordinated and sent, can be directly back to the closed state (like from the Syn_send state to establish state); but because we have to assume that the network is unreliable, You cannot guarantee that the last ACK message you send will be received by the other side, so the other side in

point, the connection is established. This is called a three-way handshake. If you want to prepare both parties, you must send three packets, and only three packets are required. We can imagine that if TCP's timeout retransmission mechanism is added, TCP can completely ensure that a data packet is sent to the destination.2. End the connection. TCP has a special concept calledHalf-closeThis concept means th

1.TCP Connection Establishment Set Host B to run a server process that first emits a passive open command, telling its TCP to be ready to receive successive requests from the client process, and then the service process is in the listening state. Continuously detect whether there is a customer process to initiate a continuous request, if any, to respond. The client process runs in host A, he first sen

server. At this point, the connection is established. This is called a three-way handshake. If you want to prepare both parties, you must send three packets, and only three packets are required.We can imagine that if TCP's timeout retransmission mechanism is added, TCP can completely ensure that a data packet is sent to the destination.2. End the connection.A special concept of TCP is half-close, which mea

The following errors are often seen in Ogg log files:OGG-01232 receive TCP Params error: TCP/IP error 104 (Connection reset by peer ). After checking Metalink, we probably talked about the relationship between extract and collector, which is divided into streaming and nostreaming modes, each with its own advantages. We recommend that you use the streaming mode if

TCP/IP routing cache mechanism, stream identity mechanism, tcp identity0x01 reason The previous chapter has learned the network layer (ip layer). The key part is to find the next hop route. This study focuses on the knowledge about routing.0x02 related structure 1. Routing cache mechanism: Struct rtable {union {struct

end.The Congestion window is the traffic control used by the send, and the notification window is the traffic control used by the receiver.5. Emergency modeTCP provides "emergency mode", which tells one end that some "emergency data" in some way is already placed in a normal data stream. The other end is notified that the emergency data has been placed in the normal data stream, and the receiver decides what to do with it.The two fields in the TCP he

The differences between TCP, IP, HTTP, and SOCKET and the connection network are classified as follows: corresponding to the physical layer -- data link layer -- network layer -- IP protocol transmission layer -- TCP protocol Session Layer -- presentation layer and application layer -- HTTP protocol www.2cto.com socket

unreachable, and network unreachable.(1) The source station suppresses ICMP to set the congestion window CWnd to 1 segment, and initiates the slow start, the slow start threshold ssthresh unchanged, the window will open until all paths are opened (subject to window size and round-trip time limit) or congestion occurs.(2) ICMP, which is unreachable by the host or unreachable by the network, is ignored because both errors are considered short-lived.5. Re-groupingWhen the