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1-持续CSMA协议下，当一个用户要发送数据时，它首先侦听信道，看是否有其他站点在传送。如果信道忙，就持续等待直到信道空闲时，便将数据送出。若发生冲突，就等待一个随机长的时间，然后重新侦听。 对于这种协议，先考虑当前帧i时的前一帧时i-1，得到前一帧时的最后一帧frame0（相对时间最大的帧）的相对时间dt0，然后再在当前帧时查看有哪些帧的相对时间会小于dt0，这些帧若是发送就会与frame0发生冲突，所以这些帧就进入持续等待状态，这些帧并没有发送。再考虑当前帧余下的帧（dt > dt0），它们中的第一帧侦听到信道处于空闲状态，所以就发送，而其他的帧由于第一帧的发送又处于等待状态。若有大于或等于2个帧的相对时间相等，且它们又同时侦听到信道空闲时，就会同时发送而导致冲突，冲突发生后的处理方法同上两个协议的一样。 -1- CSMA continued under the agreement, when a user to send data, it first interception Channel to see if there are other sites in transmission. If Channel busy, continuing to wait until the idle channel, and put more information out. If there is conflict, it is a long wait for a random time, then re-interception. Such agreements, to consider the current frame i am one of the former when i-1, be a time before the final one frame0 (relative to the time frame) the relative dt0 time, and then when the current frame to detect what the relative time frame will be less than dt0, these frames will be sent if and frame0 conflict, th

用ASP写的免费论坛。该软件不使用任何控件，可以自动为自己的后端数据库生成DSN。默认支持MS访问，但同时也必须经过MS SQL服务器的检测。-A free forum application written with ASP,not using any control,can automaticaly make a DSN for database connection.By default,it can access MS SQL Server after checked by server.

C#版的聊天室，含主机与客户端，登录界面类似-C# Version of the chat room, including host and client, login screen similar to

设定系统网卡各种参数，如ip,dns,相关参数。在2000下立即改变网卡参数。-card system set various parameters, such as ip, dns, the relevant parameters. In 2000 card immediately change parameters.

在DOS下开发tcp/ip程序,用它可以做出DOS下的tcp/ip程序。-DOS development tcp/ip procedures, and it can be made under the DOS tcp/ip procedures.

Pdu decode for sms message

在调试状态下,在Output窗口中输出监测信息，监测局域网信息-debugging under the Output window, output monitoring information, monitoring LAN Information

获取数据包柄对其进行分析，分析数据包类型，及相关协议种类-access data packets handles its analysis and packet type, and the relevant agreements types

设置IE的主页，设置范围(ie6下测试通过)-IE home page settings, set the scope (ie6 under test)

利用TCP IP实现简单的客户服务器模式-Easy to use implementation of the TCP IP client-server model