pgm multicast

1. Introduction to unicast, multicast, and broadcast 1. 1. Unicast (unicast) Unicast means data transmission to a specific host. For example, an IP packet is sent to a host. At this time, the data link layer is given in the Data header is very specific destination address, for Ethernet, is the nic mac address (not FF-FF-FF-FF-FF-FF such address ). The current host with the routing function should be able to distribute unicast data in a targeted manner

Programming | data In the information age, the application of network technology has been very common. Many of these applications rely on the ability to send the same information from one host to multiple hosts or from multiple hosts, and the number of distributed on the Internet may reach hundreds of thousands of, which requires higher bandwidth and is far beyond the ability to unicast. An important technology that maximizes the use of existing bandwidth is IP

Learning Method:WhyWhatHowWhy does this technology come into being. Without this technology, what is the current situation?What is this technology? Its principle, operating process, its working process, its functions, and so onHow to Implement --- basic configuration, optimized configuration, advanced configuration, security features and summary.Advantages of Multicast:One-to-multiple, send data to multiple receivers at the same time.Bandwidth savingSaves hardware resources and so on.Vro with IP

IPV4 Multicast (multicast) mechanism refers to: the mechanism of sending and receiving IP multicast traffic. IP multicast traffic is sent to a single destination IP address, but is received and processed by multiple IP hosts, regardless of where the host is located on the IP internetwork. A host listens on a specific I

1, broadcast and multicast are only applicable to UDP, because TCP is connection-oriented, you need to bind two hosts two processes, that is, IP address and port pair2, usually, the network card can see every data frame in the net, but often it only accepts the destination address and its own MAC address of the same or broadcast address of the frame (now some can also receive a multicast address), and then

Network Communication: unicast, broadcast, and Multicast Directory: I. Classification of network communication, their definition and characteristics. 2. network topology model of unicast, broadcast, and Multicast Transmission Information. Iii. unicast, broadcast, and multicast programming instances. I. Classification of network communication, their definition an

Article title: configure and use multicast IP technology for Linux networks. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. For example, the IP address of the local computer is 127.0.0.1. its multicast address is 224.0.0.1. This is defined by RCF 1390. To send IP

UDP, broadcast and Multicast (7), udp Broadcast (Reference) TCP/IP explanation, Volume 1: Protocol UDP is a simple datagram-oriented transport layer protocol. Each output operation of a process generates a UDP datagram and assembles it into an IP datagram to be sent. UDp datagram is encapsulated into IP datagram format, for example: UDP Header The fields of the UDP header are as follows: The port number indicates the sending and receiving processes.

1. Introduction of unicast, multicast, broadcast 1.1. Unicast (unicast)Unicast is the transfer of data to a specific host. For example, send an IP packet to a host. At this time, the data link layer gives the data header inside is very specific destination address, for Ethernet, is the specific network card MAC address (not FF-FF-FF-FF-FF-FF, this is the broadcast address). Now the host with the routing function should be able to direct the unicast da

In the information age, network technology has been widely used. Many applications depend on the ability to send the same information from one host to multiple hosts or from multiple hosts to multiple hosts. The number of applications distributed on the Internet can reach 100,000, these require higher bandwidth and greatly exceed the unicast capability. IP multicast is an important technology that can maximize the use of existing bandwidth.1. Concepts

IANA has allocated the Class D address space to the IP multicast address. the address of the Class D space is located in the first four digits of the first byte and identified by the binary value 1110. therefore, the multicast address range is: 224.0.0.0 to 239.20.00000000d Class address: www.2cto.com byte 1 byte 2 byte 3 byte 41110 xxxx xxxxxxxxThe principle is as follows: the address of the space is expre

Dizzy, the article just sent is gone, and csdn is too frustrating. It's hard to write an article and submit it without responding.Recently, I was testing the sep4020 network. Because many Nic drivers that have been porting 4020 are not very familiar with the multicast part, but it was also directly transplanted like someone else's driver. Recently I wanted to test whether 4020 of multicast is supported. So

9. multicast forwarding-Multicast Routing Protocol The unicast routing protocol looks at the destination address of the package. The Multicast Routing Protocol depends on where the package comes from. It blocks the loop through RPF reverse route forwarding. RPF is used to determine whether the packet is received by the interface closest to the source --- use t

ArticleDirectory Difference between unicast and Multicast Developing multicast in Flash Packet distribution in Multicast Conclusion Original article: Workshop Multicast is one of the features of Flash Player 10.1 and it enables you to distribute netstreams into ss the peer-to-peer mesh. it ca

"TCP/IP Detailed Volume 1: Protocol" 12th chapter broadcast and multicast---reading notes1. IntroductionBroadcast and multicast are used only for UDP, and they are important for applications that need to transmit messages to multiple recipients simultaneously.Sometimes, a host sends frames to all other hosts on the web, which is the broadcast.Multicast (multicast

A unicast address identifies a single IP interface, and the broadcast address identifies all IP interfaces for a subnet. Multicast addresses represent a set of IP interfaces, unicast and broadcast are the two extremes (either single or full) of the addressing scheme, and multicast is intended to provide a compromise between the two. Multicast is an important tool

In this case, network radio may need to transmit the same data to tens of thousands of users at the same time, which is certainly unreasonable if it is transmitted once per user in the form of transmission we have previously spoken. Therefore, multicast technology is introduced to solve this problem, it can send the same data to a large number of users at the same time. The basic principle is this: there is a mult