chromecast multicast

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

OverviewUnicast is used for end-to-end communication between two hosts, and broadcasts are used for data communication on all hosts on the entire LAN for a host. Unicast and broadcast are two extremes, either to communicate with a host, or to communicate with hosts on the entire LAN. In practice, it is often necessary to communicate with a specific set of hosts, rather than all hosts on the entire LAN, which is the purpose of multicasting.IP Multicast

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

1 Introduction As people's living standards continue to improve, the public's consumption of information increases sharply, various broadband network applications such as ip TV, video conferencing, Network Audio applications, network video applications, and multimedia distance education have broad market prospects. At the same time, a large amount of bandwidth consumption poses a challenge for network operators to provide efficient and stable services based on existing network resources.Simply i

One disadvantage of broadcast is that it affects all computers in the subnet, even if they are not interested in this broadcast message. Multicast can solve this problem. Multicast adopts Promotion Technology(Browsing Web pages is a drawing technology, and also a pushing technology.EmailService). Multicast is also called

The following is reproduced from: http://www.enet.com.cn/article/2011/0705/A20110705880890.shtml I. Introduction to the topology structure of the networkThe structure of the network consists of three layers: the core layer, the aggregation layer and the access layer.The core layer consists of 5 core nodes (each core node is configured with a routing switch CiscoCatalyst6509), which is interconnected via gigabit fiber to an incomplete mesh structure.The aggregation layer consists of 53 nodes (one

;Dstadd.sin_family=af_inet;Dstadd.sin_port=htons (11114);Dstadd.sin_addr.s_addr=inaddr_broadcast;SendTo (S,data (), totalbyte,0, (sockaddr*) dstadd,sizeof (sockaddr)); Multicast Multicast and broadcast, multicast refers to a piece of information to a limited number of nodes in the LAN transmission, and broadcast is whether a node in the development group, will

The little Porter is here again, 51 holidays are over.1. Introduction Broadcast and multicast only apply to UDP because TCP is a connection-oriented protocol (IP address determination) Unicast: The Ethernet frame is only destined for a single destination host, and the destination address indicates a single receive interface. In this mode, any two host communication will not affect the other hosts in the network (except for the

In the network overuse phase, we will use the dual-stack technology to connect the two networks. In the double stack technology, IPv6 multicast provides powerful functions. It can run on both the router and host, and can write v4 and v6 to form a convergence point. In transition technology, IPv6 multicast is very important. We will discuss this in depth. IPv6 multicast