NO.9669 client还是没等到对方的ACK包,又开始TCP retransmission这个包,我是seq 1,消息包长度496,已经收到你发的seq 1 之前的TCP包。 NO.13434 server发了SYN ACK给client,这里是tcp spurious retransmission 伪重传,我的seq是0,消息包内容长度是0,已经收到你发的seq 1 之前的TCP包。距离其上次发包给client是N...
This kind of retransmission is called spurious retransmission . This kind of retransmission is unnecessary. The cause of this situation may be due to , which means spurious timeout. An early determination timeout occurred. There are many factors that cause false timeouts, such as out-of-sequence...
When F-RTO has detected that a TCP retransmission timeout was spurious (i.e., the timeout would have been avoided had TCP set a longer retransmission timeout), TCP has several options concerning what to do next. Possible values are: 0 Rate halving based; a smooth and conservative respons...
bool is_retrans; /* is sample from retransmission? */ bool is_ack_delayed; /* is this (likely) a delayed ACK? */ + bool is_ece; /* did this ACK have ECN marked? */ }; struct tcp_congestion_ops { diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 0220b07a0...
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At this point, while both client and server have established the connection, setup encryption keys and all further communication between the parties is encrypted, the connection is not forward secure yet, meaning that compromising the server would compromise all previous communication because the server...