Date: Mon, 16 Jul 2001 11:45:02 -0400 From: "Joseph Gleason" <clash@tasam.com> To: "Peter Pentchev" <roam@orbitel.bg>, <net@FreeBSD.ORG> Subject: Re: ICMP source quench - deprecated? Message-ID: <00d201c10e0e$4720fdc0$0b2d2d0a@battleship> References: <20010716152638.B52566@ringworld.oblivion.bg>
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Unless I am mistaken, ICMP source quench applies to any IP traffic, not just TCP. Also, ICMP source quench can be sent by intermediate routers. ----- Original Message ----- From: "Peter Pentchev" <roam@orbitel.bg> To: <net@FreeBSD.ORG> Sent: Monday, July 16, 2001 08:26 Subject: ICMP source quench - deprecated? > Hi, > > I just had a friend ask me a weird question about ICMP source quench > and its handling in various OS's. He proceeded to show me a part > of some version of the Linux kernel source, which processed a source > quench request properly, yet had a 'This is deprecated' comment > at the top. > > I had a quick look at src/sys/netinet/tcp_subr.c, and on FreeBSD 4.x > and -current, an ICMP source quench seems to provoke a proper downsizing > of the connection window. > > Is there any reason for ICMP source quench to be deprecated? > If so, what is it to be replaced with? Or are the TCP window scaling > algorithms smart enough to downsize the window quick enough in case of > a noticeable packet loss? (I guess they should be..) > > G'luck, > Peter > > -- > If I were you, who would be reading this sentence? > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-net" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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