multicast troubleshooting

OneExperimental EnvironmentProgramming language:Java1.8(run in JVM (Java Virsual machine))Development tools:ECLIPCETest environment: LANIi. purpose of the experimentSociety has entered the information Age , and network technology is developing rapidly . A large number of applications rely on the ability to send the same information from one host to multiple hosts or from multiple hosts to multiple hosts, which can spread over the Internet by up to hundreds of thousands of , requiring higher ban

Scenario Description: A multicast address can contain multicast data, which is differentiated by different ports. Or a simple example.Host A to multicast address: 224.1.1.1 UDP data with send port 1025Host B to multicast address: 224.1.1.1 UDP data with send port 1026Host C Join the

Multicast programming -- Role Summary of setsockopt () Option Parameters So_rcvtimeo so_sndtimeoSets the network transmission and receipt latency. In the send (), Recv () process, sometimes due to network conditions and other reasons, the sending and receiving cannot be performed as expected, but the sending and receiving time limit is set; doubt: if it times out, it cannot be received or cannot be sent, what will happen? So_rcvbuf so_sndbufBy defaul

Definition : Delegate It is a type of method reference stored in an object, and also a type of safe function pointer. One way to understand delegation can regard the role of delegation as specifying a name for the method signature. The delegate definition is similar to the method definition, but there is no method body. The keyword delegate must be added before the defined delegate name. Because the definition delegate basically defines a new class, you can define the delegate anywhere in

, which are called multicast delegates. IfYou can call multiple methods in sequence by calling multicast delegates. Therefore, the delegate signature must return void (otherwise, where should the return value be sent ?) (When a delegate only contains one method, its return type declaration can refer to the encapsulated method, not necessarily void ). In fact, if the compiler finds that a delegate returns vo

Set up Multicast Server Step 1: RunProgramThen select "media-streaming "; Step 2: click Add to select the file to be played (take the WMV file as an example) and click stream "; Step 3: set three parameters for stream output: source, target, and option. The source has been specified just now. Click "Next "; Step 4: Select "display locally", select "RTP/MPEG transport stream", and click "add "; Step 5: if an IPv6

The test code for multicasting is as follows:#include The following error occurred during the Ubuntu compilation run:The answers to the relevant information are as follows:It means that the tool was trying to use multicast and the network interface doesn ' t support it there be, likely causes :· Your machine doesn ' t has multicast support enabled. For example, on Linux and FreeBSD it's possible to compile

to a unique destination. In a conflict domain, all hosts can receive a unicast frame sent by the source host, but other hosts will discard the received frame when the destination address does not match the local MAC address, and only the true destination host will receive and process the received frame.BroadcastingThe second type of transmission is broadcast, which indicates that frames are sent from a single source to all hosts on a shared Ethernet network. The destination MAC address of the b

. Publish-subscribe model (pub/Sub) [multicast-based communication mode]The publishing-subscription model uses a content hierarchy called a topic to replace the unique destination in the PTP model and send applications to publish their own messages, it indicates that the message describes a topic in the layered structure. Applications that want to receive these messages subscribe to this topic. Subscribe to a topic in the subtopic hierarchy. subscribe

Let's explore a different use of the multicast () operator in RxJS, where can provide a selector function as a sandbox The where the shared Observable is available.When we have the code like below: var result = Rx.Observable.interval (1000 ). Take (6 ). do (x = Console.log ( ' source + X"). Map (x => Math.random ()); var Delayedresult = result.delay (500 Span style= "color: #000000;" >); var merged = Result.merge (Delayedresult); Merged.su

Sometimes, we want to call a delegate, but we can execute multiple methods at the same time (the most common in custom events), for example, a jobCompositionAfter the file is generated, the system will generate the document log and save it to the database. For the above two operations, if you only want to call one delegate, you can complete it in sequence, you can use multicast delegation. If you call multicast