10 2018 档案

TCP Keepalive(1)
摘要：Introduction Under some circumstances, it is useful for a client or server to become aware of the termination or loss of connection with its peer. In 阅读全文
posted @ 2018-10-11 00:02 geeklove 阅读(360) 评论(0) 推荐(0)
TCP Congestion Control(3)
摘要：Standard TCP When fast retransmit is invoked because of receipt of a third duplicate ACK (or other signal, if conventional fast retransmit initiation 阅读全文
posted @ 2018-10-10 18:22 geeklove 阅读(191) 评论(0) 推荐(0)
TCP Congestion Control(2)
摘要：Slow Start The slow start algorithm is executed when a new TCP connection is created or when a loss has been detected due to a retransmission timeout 阅读全文
posted @ 2018-10-10 12:55 geeklove 阅读(348) 评论(0) 推荐(0)
TCP Congestion Control(1)
摘要：Introduction Congestion control is a set of behaviors determined by algorithms that each TCP implements in an attempt to prevent the network from bein 阅读全文
posted @ 2018-10-09 13:56 geeklove 阅读(424) 评论(0) 推荐(0)
TCP Data Flow and Window Management(4)
摘要：Urgent Mechanism Difference between push and urgent flags in TCP https://stackoverflow.com/questions/9153566/difference-between-push-and-urgent-flags- 阅读全文
posted @ 2018-10-08 13:11 geeklove 阅读(144) 评论(0) 推荐(0)
TCP Data Flow and Window Management(3)
摘要：Example We create a TCP connection and cause the receiving process to pause before consuming data from the network. This arranges for the receiver to 阅读全文
posted @ 2018-10-08 10:08 geeklove 阅读(259) 评论(0) 推荐(0)
TCP Data Flow and Window Management(2)
摘要：Flow Control and Window Management Every TCP segment (except those exchanged during connection establishment) includes a valid Sequence Number field, 阅读全文
posted @ 2018-10-07 23:14 geeklove 阅读(357) 评论(0) 推荐(0)
TCP Data Flow and Window Management(1)
摘要：Introduction An “interactive” TCP connection is one in which user input such as keystrokes, short messages, or joystick/mouse movements need to be del 阅读全文
posted @ 2018-10-06 21:20 geeklove 阅读(402) 评论(0) 推荐(0)
TCP Timeout and Retransmission(5)
摘要：Destination Metrics Repacketization When TCP times out and retransmits, it does not have to retransmit the identi- cal segment. Instead, TCP is allowe 阅读全文
posted @ 2018-10-06 16:59 geeklove 阅读(277) 评论(0) 推荐(0)
TCP Timeout and Retransmission(4)
摘要：Spurious Timeouts and Retransmissions Under a number of circumstances, TCP may initiate a retransmission even when no data has been lost. Such undesir 阅读全文
posted @ 2018-10-06 15:05 geeklove 阅读(697) 评论(0) 推荐(0)
TCP Timeout and Retransmission(3)
摘要：Example The first line of Figure 14-7 (number 40) indicates the first time ACK 23801 is received The window update at time 0.853 is an ACK with a dupl 阅读全文
posted @ 2018-10-05 19:47 geeklove 阅读(442) 评论(0) 推荐(0)
TCP Timeout and Retransmission(2)
摘要：Retransmission Ambiguity and Karn’s Algorithm A problem measuring an RTT sample can occur when a packet is retransmitted. Say a packet is transmitted, 阅读全文
posted @ 2018-10-04 13:46 geeklove 阅读(713) 评论(0) 推荐(0)
TCP Timeout and Retransmission(1)
摘要：TCP has two separate mechanisms for accomplishing retransmission, one based on time and one based on the structure of the acknowledgments. The second 阅读全文
posted @ 2018-10-04 01:01 geeklove 阅读(1093) 评论(0) 推荐(0)
TCP Connection Management(5)
摘要：TCP Server Operation In particular, we wish to become familiar with how TCP servers use port numbers and how multiple concurrent clients are handled. 阅读全文
posted @ 2018-10-03 17:38 geeklove 阅读(294) 评论(0) 推荐(0)
TCP Connection Management(4)
摘要：Reset Segments A segment hav- ing this bit set to “on” is called a “reset segment” or simply a “reset.” In general, a reset is sent by TCP whenever a 阅读全文
posted @ 2018-10-02 21:34 geeklove 阅读(224) 评论(0) 推荐(0)
TCP Connection Management(3)
摘要：When initialized, TCP starts in the CLOSED state. Usually an imme- diate transition takes it to either the SYN_SENT or LISTEN state, depending on whet 阅读全文
posted @ 2018-10-02 12:15 geeklove 阅读(654) 评论(0) 推荐(0)
TCP Connection Management(2)
摘要：Connections and Translators NAT TCP Options Every option begins with a 1-byte kind that specifies the type of option. Options that are not understood 阅读全文
posted @ 2018-10-01 16:31 geeklove 阅读(280) 评论(0) 推荐(0)
TCP Connection Management(1)
摘要：Introduction Recall that TCP’s service model is a byte stream. TCP detects and repairs essentially all the data transfer problems that may be introduc 阅读全文
posted @ 2018-10-01 12:07 geeklove 阅读(572) 评论(0) 推荐(0)