※ 引述《vickycute (小酷智)》之铭言： : 想请教各位高手，有相TCP的问题... : 这是作业，不过我解不太出来，呜... : 1. To make the initial sequence number a random number, : most systems start the counter at 1 during bootstrap and increment the : counter by 64,000 every half second. : How long does it take for the counter to wrap around？ sequence number is 32-bit long, so the duration would be: (2^32 / 64,000) * 0.5 ~= 33,554 sec : 2. In a connection, the value of cwnd is 3000 and the value of rwnd is 5000. : The host has sent 2000 bytes which have not been acknowledged. : How many more bytes can be sent？ the total data allowed to be sent is min(cwnd, rwnd), so min(3000, 5000) - 2000 = 1000 bytes more data can be sent. : 拜托，谢谢^^ --

※ 发信站: 批踢踢实业坊(ptt.cc) ◆ From: 207.46.92.16