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Document that we are more conservative after doing MTU discovery than the 

suggestion in draft-floyd-incr-init-win-03.  Rather than scaling cwnd back
by the ratio of new segment size to old segment size, we perform a slow start
using the Initial Window, computed with the new segment size.
This commit is contained in:
thorpej 1998-07-17 23:09:58 +00:00
parent e5fb973688
commit 3a9ed00799
1 changed files with 4 additions and 1 deletions
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5
sys/netinet/tcp_subr.c
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@ -1,4 +1,4 @@
/* $NetBSD: tcp_subr.c,v 1.55 1998/07/17 23:02:38 thorpej Exp $ */
/* $NetBSD: tcp_subr.c,v 1.56 1998/07/17 23:09:58 thorpej Exp $ */
/*-
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
@ -600,6 +600,9 @@ tcp_mtudisc(inp, errno)
* Slow start out of the error condition. We
* use the MTU because we know it's smaller
* than the previously transmitted segment.
*
* Note: This is more conservative than the
* suggestion in draft-floyd-incr-init-win-03.
*/
if (rt->rt_rmx.rmx_mtu != 0)
tp->snd_cwnd =