计算机网络（第4版）

• 7086

  2022-01-13
  Until the early 1990s the Internet was used primarily by researchers, academics, and university students to log in to remote hosts, to transfer files from local hosts to remote hosts and vice versa, to receive and send news, and to receive and send electronic mail. Although these applications were(and continue to be)extremely useful, the Internet was essentially unknown outside of the academic and research communities.
• Jake

  2018-11-16
  EstimatedRTT = (1-α) · EstimatedRTT + α · SampleRTT
• newleft

  2014-12-14
  One interesting property of MAC addresses is that no two adapters have the same address. This might seem surprising given that adapters are manufactured in many countries by many companies. How does a company manufacturing adapters in China make sure that it is using different addresses from a company manufacturing adapters in Belgium?
• 米迦勒雏菊

  2013-12-08
  Many of today’s most popular and traffic-intensive applications are based on P2Parchitectures. These applications include file sharing (e.g., BitTorrent), peer-assisted download acceleration (e.g., Xunlei), Internet Telephony (e.g., Skype), and IPTV (e.g.,Kankan and PPstream).
• [已注销]

  2013-07-16
  The application developer has control of everything on the application-layer side of the socket but has little control of the transport-layer side of the socket.
• 清净平等觉

  2011-05-09
  rip是被当作一个应用层进程（虽然它是一个能操作UNIX内核中的转发表的特殊进程)来实现的，所以它能在一个标准套接字上发送和接收报文，并且使用一个标准的运输层协议。RIP是一个运行在UDP上的应用层协议。
• 程小軒

  2017-03-16
  Whereas a transport-layer protocol provides logical communication between processes running on different hosts, a network-layer protocol provides logical communication between hosts.
• orcl_zhang

  2014-01-18
  因为排队时延随时间变化，所以分组n发送到路由器n的往返时延实际上比分组n+1发送到路由器n+1的往返时延更大。的确，我们在上述例子中观察到了这种现象：到路由器6的时延比到路由器7的时延大。