Date: Mon, 14 Sep 2009 16:28:51 +0300 From: Andriy Gapon <avg@icyb.net.ua> To: John Baldwin <jhb@freebsd.org> Cc: freebsd-fs@freebsd.org, doug@polands.org, qing.li@bluecoat.com, freebsd-current@freebsd.org, Rick Macklem <rmacklem@uoguelph.ca> Subject: Re: NFS client defaults to a mix of UDP and TCP Message-ID: <4AAE4513.6030701@icyb.net.ua> In-Reply-To: <200909140858.34592.jhb@freebsd.org> References: <Pine.GSO.4.63.0909131356020.12138@muncher.cs.uoguelph.ca> <200909140858.34592.jhb@freebsd.org>
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on 14/09/2009 15:58 John Baldwin said the following:
>
> Yes. I know of folks would love to have NFS use only TCP, including the
> initial RPC portmapper requests. IMO an NFS mount should use TCP for
> everything and a UDP mount should use UDP for everything by default.
>
And another fact - it seems that NFS umount unconditionally uses UDP for "something":
/*
* Report to mountd-server which nfsname
* has been unmounted.
*/
if (ai != NULL && !(fflag & MNT_FORCE) && do_rpc) {
clp = clnt_create(hostp, MOUNTPROG, MOUNTVERS, "udp");
...
--
Andriy Gapon
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