Date: Fri, 19 Nov 2010 10:05:38 -0600 From: Russell Cattelan <cattelan@thebarn.com> To: Holger Rauch <Holger.Rauch@empic.de> Cc: "freebsd-pf@FreeBSD.org" <freebsd-pf@freebsd.org> Subject: Re: PF from OpenBSD 4.5 available as patch for 8.1-STABLE? Message-ID: <4CE6A052.3010007@thebarn.com> In-Reply-To: <1989F0C06F24544989EB233736143E7C01F7A6CC@MX1.heitec.net> References: <1989F0C06F24544989EB233736143E7C01F7A6CC@MX1.heitec.net>
next in thread | previous in thread | raw e-mail | index | archive | help
I have not looked at this patch but you probably want to look at http://lists.freebsd.org/pipermail/freebsd-pf/2010-October/005842.html It is a bit unclear from your post what problem are you trying to solve here? Limit the bandwidth of your linux boxes when doing scp/rsync? -Russell Holger Rauch wrote: > Hi, > > is there such a patch? The reason why I ask for it is: > > I'm currently experiencing saturated network interfaces when using gigabit networking in conjunction with certain Linux driver<->NIC combos for Broadcom chips against the PF version shipped with FreeBSD 8.1 stable running on a HP ProLiant DL 180 G5 server. > > The problem only occurs with high throughputs (at least 30 MBytes/sec) caused by scp/rsync. Up to now, I've come accross this issue with > > Broadcom Corporation NetLink BCM5787M Gigabit Ethernet PCI Express (rev 02) (tg3 driver in Linux) > > and > > Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet (rev 20) > (bnx2 driver in Linux; this is used in various HP ProLiant servers) > > But it doesn't occur with Intel chips and also not with this chip > > Broadcom Corporation NetXtreme BCM5764M Gigabit Ethernet PCIe (rev 10) > (tg3 driver in Linux). With those NICs I can transfer 50-60 MBytes/sec via scp/rsync without any problem. > > I've also tried different Linux kernel versions (2.6.26 and 2.6.32). Didn't make a difference. > > On FreeBSD systems, I get around 22 MByte/sec when transferring files via scp. Furthermore, changing the PF rules from "modulate state" to "keep state" has also had a positive impact. I now workarounded the problem by changing all scp based cron jobs to rsync using ssh in conjunction with rsync's --bwlimit option. > > Thanks in advance& kind regards, > > Holger > > > THE standard software for Aviation Authorities > > ********************************************************************************************** > IMPORTANT NOTICE / WICHTIGER HINWEIS > This communication contains information which is confidential and may also be privileged. It is for the > exclusive use of the intended recipient(s). If you are not the intended recipient(s) please note that any > distribution, copying or use of this communication or the information in it is strictly prohibited. If you have > received this communication in error please notify us immediately by email or by telephone and then delete > this email and any copies of it. > Diese E-Mail koennte vertrauliche und/oder rechtlich geschuetzte Informationen enthalten. Wenn Sie nicht > der richtige Adressat sind oder diese E-Mail irrtuemlich erhalten haben, informieren Sie bitte sofort den > Absender und vernichten Sie diese Mail. Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser > Mail sind nicht gestattet. > ********************************************************************************************** > > _______________________________________________ > freebsd-pf@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-pf > To unsubscribe, send any mail to "freebsd-pf-unsubscribe@freebsd.org"
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4CE6A052.3010007>