fix protocol 4 2

Implementation of IP protocol (V4) in Linux (2)This article mainly introduces forward and local delivery. Last time we mentioned that after ip_rcv_finish is complete, call the relevant sending functions ip_forward or ip_local_deliver. This time we will mainly introduce these two functions. Let's first look at forward. Forward generally consists of the following parts: 1. Execute IP Option2. Make sure this p

framebuffer data to the client in the number of bytes specified by its size. If the ADBD daemon does not have sufficient privileges to open the framebuffer device, the connection is immediately closed.Jdwp:pid Connect the JDWP thread inside the Java virtual machine process specified by the process number in the target deviceTrack-jdwp This service is used to periodically send a list of process numbers to the client that have the JDWP process enabled.The format of the returned data i

Arpwhohas function. Used to broadcast an ARP request.The function establishes an ARP grouping. and pass it to the output function of the interface.Shows the two data structures Mbuf and sockaddr created by the function. In addition, there are two pointers to the functions used in EH and EA.The approximate process flow for functions such as the following:1. Assign and initialize the MBUF. Assign a mbuf to the header of a grouped data and assign a value to two length fields.

is as follows: 1. Allocate and initialize mbuf. Assign the mbuf of the Data header of a group and assign values to the two length fields. 2. initialize the pointer. Assign values to the pointers EA and eh, and assign the value of the ether_arp structure to 0. 3. Fill in the Ethernet frame header. Set the destination ethernet address to an Ethernet broadcast address, and set the Ethernet frame type to ethertype_arp. Different The constant value of the

Troubleshooting of IGRP/VPN Protocol 2 07. Why does it mean that VPN is neither a distance vector protocol nor a link status protocol? VPN is an advanced distance vector protocol. It sends and updates route information based on the neighbor router. However, it also saves a r

, and then design the entire system. Because the system is a similar Simulated Project and completed in a week's spare time, the author has made the following basic objectives: vGlob Description:This is a demo system of wire transfer between banks, the system mainly focus on the 2 phase communication. vFeature1. user interface is simply and easy to use. the company use web server to receive the concurrent requests from users, Even we provide a command

IGMP communicates group membership information between hosts and routers on the local network, and routers periodically multicast IGMP queries to all host groups. Host multicast IGMP reporting messagesIn response to the query.From an architectural standpoint, IGMP is the Transport layer protocol located above IP. It has a protocol number (2), and its message is h

the body length of the message has been read.Then call ReadRawVarint32 () to revert to int, which is the opposite of the previous writeRawVarint32 () line. Public intReadRawVarint32 ()throwsIOException {byteTMP =Readrawbyte (); if(TMP >= 0) { returntmp; } intresult = tmp 0x7f; if(TMP = Readrawbyte ()) >= 0) {result|= tmp ; } Else{result|= (tmp 0x7f) ; if(TMP = Readrawbyte ()) >= 0) {result|= tmp ; } Else{result|= (tmp 0x7f) ; if(TMP = Readrawbyte ()) >= 0) {result|= tmp ; } Else{result

Basic tutorial for Android -- 7.6.3 Socket communication based on TCP protocol (2)This section introduces: In the previous section, we introduced some basic concepts and usage of Socket, and then wrote a simple chat room for piggyDemo, I believe you have a preliminary understanding of the Socket. In this section, we will learn how to use the Socket to achieve resumable upload of large files!The following

Http://www.cnblogs.com/haoxinyue/archive/2012/05/03/2479599.html Let's take a look at the mifareclassic protocol. In the android SDK documentationMifareClassicI/O operations will be supported, andMIFARE_CLASSICNdef tags will also be supported. In either case,NfcAWill also be enumerated on the tag, because all Mifare classic tags are alsoNfcA."Therefore, the nfca protocol is compatible with the mifareclassi

, and the wire diameter of the 62.5μm fiber is called OM1 fiber). The 10GBASE-SR has the advantages of lowest cost, lowest power consumption and minimal fiber modules. 2.2) 10GBASE-LR The "LR" in 10GBASE-LR represents the meaning of long Reach, which supports 64b/66b (1310nm) Single mode optical fiber (SMF), which is encoded in the form of an effective transmission distance of 2m to 10km, in fact up to 25km. The 10GBASE-LR fiber modules are cheaper than the 10GBASE-LX4 fiber modules that will be

It is not as good as the 16-http protocol (2) of bad pen headers and the transfer of page data compression. When we use tools such as HttpServletRequest and HttpServletReonse, these tools use the http protocol, which is also common for our daily WEB development. Because the http protocol is well encapsulated, we often

to the host through its status change channel to the host.USBThe device is connected. At this time,USBThe device is in the power-on status and its connected port is invalid. 2.The host queries the hub to determine the exact meaning of the status change. 3.Once the host is notified that the new device is connected, it must wait for at least100 msTo make the insertion Operation complete and the power supply of the device stable. Then the host s

resource establishment (P o s t command ) The request is accepted, but the processing is not completedO K, but no content returned 3 0 13 0 23 0 4 The requested resource has been designated as a new fixed U R LThe requested resource is temporarily located in an additional U R LDocument not modified (condition G E T) 4 0 04 0 14 0 34 0

OOS = new objectoutputstream (OS); 25 // input stream 26 inputstream is = socket. getinputstream (); 27 bufferedreader BR = new bufferedreader (New inputstreamreader (is); 28 // 3. use the stream to perform read/write operations on the socket according to certain protocols 29 user = new User (); 30 user. setloginname ("Kate"); 31 user. setpwd ("120056"); 32 OOS. writeobject (User); 33 34 socket. shutdownoutput (); 35 // receive the server response and print 36 string reply = NULL; 37 while (! (

RTCP RTP protocol format Analysis 2: the RTP Header has the following format: 0 1 2 3 0 1 2 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2

data to the server.2)GetFollow the data in the formVariable=valueThe form, added to theActionThe point ofUrlBack, and both use“?”ConnectionAnd each variable is used between""ConnectionPostis to put the data in the form in the body of the data, according to the variables and values corresponding to the way, passed to theActionThe pointUrl。3)Getis unsafe because in the transfer process, the data is placed in the requestedUrlMany servers, proxy servers,

I2S Audio bus Learning (2) I2S Bus Protocol I. I2S bus Overview The collection, processing and transmission of audio data is an important part of multimedia technology. Many digital audio systems have entered the consumer market, such as digital audio tapes and digital audio processors. For devices and manufacturers, the standardized information transmission structure can improve the adaptability of the sys

JavaSE-UDP protocol network programming (2), javaseudp In UDP network programming, the sender has no connection with the receiver, and there is no obvious difference between the server and the client. Class DatagramSocket: This class indicates the socket used to send and receive the datagram packet. Main constructor methods: DatagramSocket (): creates an instance, binds the default IP address of the loca

1. First of all, I'm looking at hadoop1.2.1 This inside, a little strange clientdatanodeprotocol VersionID is 4, but Interdatanodeprotocol's VersionID is 3, And these two are no longer under the same package, Interdatanodeprotocol is located under Org.apache.hadoop.hdfs.server.protocol, while Clientdatanodeprotocol is located under Org.apache.hadoop.hdfs.protocol 2, Clientdatanodeprotocol inside of the thre