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address select the next hop IP address (also be a routing device or virtual routing device or destination address), through the ARP protocol to get to the next hop MAC address, modify the packet, The destination MAC address is set to this address, which is thrown to the link layer and sent out by the link layer. Router Isolated broadcast domain The transport layer, including the
set to the value after the slow start threshold is halved;implementation of congestion avoidance algorithm (high starting point, linear growth);QUIZ:After the TCP connection is established, what is maintained by what?ANSWER:The data received and sent from the network are implemented through sockets. However, if the socket is disconnected, then sending data and receiving data will definitely cause problems. How can I tell if a socket is available? How
A Send a connection request and wait for confirmation A, b Established Both establish a connection The four-time handshake close link is as follows:The specific steps are as follows:1.A send fin message, Mark Seq=m2.B after receiving fin message, send confirmation message, Mark Seq=m+1Fin messages are also sent after 3.B, labeled Seq=n4.A after receiving fin message, send confirmation message, Mark Seq=n+1At this point the two sides are disconnected, and
The TCP/IP network communication software package uses remote access commands. These commands were first developed for Arpanet by UC Berkely. It allows you to remotely register to another system and copy files from one system to another. You can obtain information about a system, such as who is currently registering for use. When calling a system address, these remote commands use the domain name or
There has been a problem for a long time, everyone is talking about the HTTP protocol, TCP protocol, IP protocol, what is the difference between them, what is the use, no one told me, recently read this "illustrated http" understand some of the film from the bookFirst, under
TPC/IP Protocol is a Transport layer protocol, which mainly solves how data is transmitted in the network, and HTTP is the application layer protocol, which mainly solves how to wrap the data. regarding the relationship between TCP/IP
a host or a simple routing algorithm for it. essentially the difference is that the host never forwards the datagram from one interface to another, while the router forwards the datagram. The host that contains the router function should never forward datagrams unless it is set to that.In a general system, IP can accept datagrams from tcp,udp,icmp and IGMP (i.e. locally generated datagrams) and send them,
1. TCP connectionTCP (transmission Control Protocol) transmission protocol. TCP is the host-to-host layer of the Transmission Control Protocol, providing a reliable connection service, using three-time handshake confirmation to establish a connection. The bit code is the
, otherwise the receiver believes that the data frame is not finished, that is, two consecutive ESC Only one of them is processed.The SLIP protocol is not applicable because of the following reasons:1. Serial line can only run one protocol (only slip), but not to run other protocols2. Large data transfer increases network congestion3. Cannot pass IP to the other
"TCP/IP Detailed Volume 1: Agreement" 1th Chapter Overview-Reading Notes"TCP/IP Detailed Volume 1: Protocol" chapter 2nd link layer-Reading notes"TCP/IP Detailed Volume 1:
TCP/IP protocol family 1.1 Introduction The TCP/IP protocol family consists of 5 layers: Physical layer, Data link layer, network layer, Transport layer and application layer. The first four layers correspond to the first four l
The web point-to-point program transmits data, is the HTTP protocol or TCP/IP protocol TCP/IP protocol and HTTP protocol what is the differe
, various data streams are transmitted according to rules, and computers are proud to communicate with each other. TCP/IP protocol is a set of protocols. When you call it, it is called TCP/IP. An important concept in the TCP/
-point over Ethernet) enables Ethernet hosts to connect to a non-existent Access Concentrator through a simple bridging device [3]) for dial-up Internet access, the ppop header is 8 bytes, so the MTU of pppoe is 1492, And the MSS is 1492-40 = 1452. What is the MSS for data transmission after a TCP connection is established? 1460 or 1452 or 536? My understanding is that the default value is 536. Is that corr
because pppoe (point-to-point over Ethernet) enables Ethernet hosts to connect to a non-existent Access Concentrator through a simple bridging device [3]) for dial-up Internet access, the ppop header is 8 bytes, so the MTU of pppoe is 1492, And the MSS is 1492-40 = 1452. What is the MSS for data transmission after a TCP connection is established? 1460 or 1452 or 536? My understanding is that the default va
, hardware and software to achieve the way. The fifth to seventh layers of the OSI reference model are called high-level (upper layer) and several layers (host layer), which are used to ensure the correct transmission of data and are implemented in software mode.OSI seven-layer function: TCP/IP protocol Stack Because the OSI model and
TPC/IP Protocol is a Transport layer protocol, which mainly solves how data is transmitted in the network, and HTTP is the application layer protocol, which mainly solves how to wrap the data. regarding the relationship between TCP/IP
The TCP/IP protocol is actually a set of protocols, including many protocols, which constitute the TCP/IP protocol stack. But the Transmission Control Protocol (
memory of the high address segment. For example, for 0x12345678, the highest byte is 12 and the minimum byte is 78, so the order of storage in small-end mode is: 0x78,0x56,0x34,0x12. The order of storage in the big-endian mode is: 0x12,0x34,0x56,0x78. In all TCP/IP protocol headers, the data transfer is carried out by the big-endian, which is also called the net
Part1. The most familiar strangersCompared with the TCP/UDP protocol, the HTTP protocol may be more familiar, as everyone can see the http://xxx.com word everywhere. But, reallyThe students who are aware of the HTTP protocol may be just a few, and many people don't even know what "404" means. And this article, it is to
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