From: raj ravi <mekaviraj@gmail.com>
To: netdev@vger.kernel.org
Subject: tcp_reordering as 0 possible?
Date: Mon, 15 Mar 2010 19:55:16 +0530 [thread overview]
Message-ID: <de0a9dcb1003150725h367d0548j35037441fdb2f5df@mail.gmail.com> (raw)
Hi,
what is the behaviour in TCP stack if I set tcp_reordering as 0.
So , sender will start retransmission without waiting for any duplicate ACK ?
/proc/sys/net/ipv4/tcp_reordering - Please clarify.
The default value is 3 which means it waits until 3 duplicate ack's
arrive and then start retransmission.
"The TCP sender should use the fast retransmit algorithm to detect and
repair loss based on incoming duplicate ACKs. After the arrival of 3
duplicate ACKs (4 identical ACKs without the arrival of any other
intervening packet), TCP performs a retransmission of what appears to
be the missing segment, without waiting for the retransmission timer
to expire."
Thanks!
Kavi
next reply other threads:[~2010-03-15 14:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-15 14:25 raj ravi [this message]
2010-03-17 11:38 ` tcp_reordering as 0 possible? Ilpo Järvinen
2010-03-17 12:23 ` raj ravi
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