具有极高延迟的网络

Question

是否有任何协议，系统等实验或以其他方式设计用于通过非常高的延迟链路允许正常（尽可能正常）的网络操作（电子邮件，DNS，HTML等） ？我在想几分钟到一个小时，或者两个小时。考虑太阳系规模下的光速滞后。

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作为一个方面：关于社会影响小时到一天的沟通延迟的研究或猜测将是有趣的。目前的趋势趋向于延迟几秒到几分钟（加上无论多长时间都需要人们注意您的电子邮件），并且预电话时间趋向于几天到几周，但我无法想象在时间范围内具有最小时间延迟的任何事情。

Answer 1

从tcp_timer.c：

 /* Increase the timeout each time we retransmit. Note that 
     * we do not increase the rtt estimate. rto is initialized 
     * from rtt, but increases here. Jacobson (SIGCOMM 88) suggests 
     * that doubling rto each time is the least we can get away with. 
     * In KA9Q, Karn uses this for the first few times, and then 
     * goes to quadratic. netBSD doubles, but only goes up to *64, 
     * and clamps at 1 to 64 sec afterwards. Note that 120 sec is 
     * defined in the protocol as the maximum possible RTT. I guess 
     * we'll have to use something other than TCP to talk to the 
     * University of Mars. 
     * 
     * PAWS allows us longer timeouts and large windows, so once 
     * implemented ftp to mars will work nicely. We will have to fix 
     * the 120 second clamps though! 
     */ 

PAWS？

Answer 2

您可能会感兴趣的Interplanetary Internet的概念。一种可能的潜在技术是Delay-Tolerant networking，其中有几个公布的RFC：RFC 4838和RFC 5050。