bluetooth multicast

Headset Principle Bluetooth technology picture 11features of Bluetooth technology1.1Bluetooth Protocol Architecture The whole Bluetooth protocol architecture can be divided into three parts: the underlying hardware module, the intermediate protocol layer and the high-end application layer. The Link Management layer (LMP), the baseband layer (BBP), and the

Part of this article is reproduced in: http://network.51cto.com/art/200912/168407.htm Before talking about IGMP, it is said that IGMP packets cannot be transmitted outside the LAN (for details, see: http://blog.csdn.net/todd911/article/details/9530633), so how to communicate between routers after hosts in different network segments join multicast groups, do you know which subnet to forward? This is the function of the IP

file is created, the operation is very simple, as long as you run Pppd call gprs The connection can be established. This is the information obtained by ifconfig. Ppp0 Link encap: Point-to-Point Protocol Inet addr: 10.14.7.136 P-t-P: 192.168.100.101 Mask: 255.255.255.255 Up pointopoint running noarp multicast mtu: 1500 Metric: 1 RX packets: 4 errors: 1 dropped: 0 overruns: 0 frame: 0 TX packets: 13 errors: 0 dropped: 0 overruns: 0 carrier: 0 Collis

assurance mechanism different from traditional unicast and broadcast mechanisms. IP multicast technology is the key technology to solve these problems.I. Overview of basic knowledge of IP multicast technology1. Concepts of IP multicast technologyIP multicast is also called multi-site broadcast or

Class d ip addresses (224.0.0.0 to 239.255.255.255) do not recognize a single interface on the Internet, but recognize an interface group, which is called multicast groups. Members of a single network use the IGMP protocol to communicate with each other. Multicast Routing Protocol for multicast routers, such as dvmrp (Distance Vector

Analysis of Three TCP/IP transmission modes (unicast, broadcast, and Multicast)The Multicast Technology of TCP/IP transmission mode is a type of TCP/IP transmission mode. Before discussing Multicast technology, let's take a look at TCP/IP transmission methods. There are three TCP/IP transmission modes: unicast, broadcast, and

What is Bluetooth??? It can also be said that Bluetooth technology. The so-called Bluetooth technology, actually a short-range radio technology, was invented by Ericsson company. The use of "Bluetooth" technology can effectively simplify communication between mobile devices such as handheld computers, laptops and mobil

Keywords: Bluetooth Core Technology Protocol version historyXubin341719 (Thank you for reprinting. Please indicate the author., Please respect copyright. Thank you.)Correct the mistakes and learn and make progress together !!Download link: Bluetooth profile specifications (basically covering all Bluetooth protocols), buletooth core 2.1-4.0 specification (Core Pro

I. Data Transmission over an IP Network Multicast technology is one of the three methods of data transmission over an IP network. Before introducing the IP multicast technology, we will give a brief introduction to the unicast, multicast, and broadcast modes of data transmission over an IP network: GroupBroadcast Unicast transmission: Implements point-to-

Original address: http://blog.sina.com.cn/s/blog_49843aeb0100i0bc.htmlMulticastfunction: Inter-host communication usage, inter-routing communication usage concept :IP multicast technology, which is one or more hosts (multicast source) that allows sending a single packet to multiple hosts (at the same time) TCP/IP network technology, is a point-to-multipoint communicationWhy use it ?: In the application of n

Introduction In Chapter 1st, we mentioned three IP addresses: unicast address, broadcast address, and multicast address. This chapter introduces broadcast and multicast in more detail.Broadcast and multicast are only used in UDP. They are very important for applications that need to transmit packets to multiple receivers at the same time. TCP is a connection-orie

Bluetooth Core Technology Overview (i): Bluetooth overviewTags: bluetooth bluetoothsig2014-07-26 16:01 6143 People read Comments (3) favorite reports Classification:Agreement (+)Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.Keywords: Bluetooth core technol

Class D addresses are used for multicast, which starts with 1110, and the remaining 28 are used to identify multicast addresses (the remaining 28 are non-structured addresses ), MAC addresses starting with 01005e are used to represent MAC multicast addresses, while the remaining 23 are used to identify multicast. IP

To accomplish useful work, peers in peer-to-peer applications must be able to discover each other and interact with each other. This article provides an implementation of a discovery based on IP multicast. Before a software entity can participate in a direct peer-to-peer interaction with a Peer-to-peer application feature, the entity must discover the appropriate peers to interact with. All available Peer-to-peer architectures provide a solution for

first to understand the next UDP UDP is the abbreviation of Userdatagram protocol, the Chinese name is User Datagram Protocol, is a connectionless transport layer protocol in the Reference Model of OSI (open System interconnection, open Systems Interconnection). Provides a transaction-oriented, simple, unreliable information delivery service, and IETF RFC 768 is the formal specification of UDP. The protocol number for UDP in IP packets is 17. The difference between UDP and TCP: http://blog.csdn

What is unicast, multicast, and broadcast? The terms unicast, multicast, and broadcast are all terms used to describe the communication methods between network nodes. So what exactly do these terms mean? What is the difference? Let's break it down. --★Unicast★--The communication between network nodes is like a conversation between people. If a person speaks to another person, the term network technology is

First to understand the next UDP UDP is the abbreviation of Userdatagram protocol, the Chinese name is User Datagram Protocol, is a connectionless transport layer protocol in the Reference Model of OSI (open System interconnection, open Systems Interconnection). Provides a transaction-oriented, simple, unreliable information delivery service, and IETF RFC 768 is the formal specification of UDP. The protocol number for UDP in IP packets is 17. The difference between UDP and TCP: http://blog.csdn.

In the project, the Ys Private protocol uses multicast technology, which uses Python to send multicast packets when verifying its security features, and to make a record here. Python has complete support for sockets. Some of the APIs though have a different signature than the POSIX equivalents. It is therefore possible to write multicast servers and clients

Tags: CISC IEEE 2.3 Address STP Protocol pause nbsp STP network deviceTurn from: Multicast MAC addressThe MAC address is a 48bit (6-byte hexadecimal number) address used by the Ethernet two layer to identify the device location. The MAC address is divided into two parts, the first 24 bits being the organization's unique identifier (OUI, organizationally unique identifier), and the last 24 bits being assigned by the vendor itself.MAC addresses have uni

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