How do I max a 6Mbps link
simon at optinet.com
Wed Jul 9 10:47:41 PDT 2003
Ops, you're absolutely right, I don't know how I got the 3megs, I'm in the middle
of getting a mortgage, if you know what I mean. Sorry for any confusion I might
have caused. I do know my bits and bytes and I was way off indeed, my mistake.
On Wed, 9 Jul 2003 13:31:54 -0400, Lapinski, Michael (Research) wrote:
>1) "6mbps link, which is roughly 3megs/sec" is inaccurate
> 6 Mbits is roughly 600kilobytes/second
>2) A common way to speed up transfers is to tune your
> tcp window sizes using /sbin/sysctl.
> The two you may wish to lok at are:
> try values like 128000 and 256000
> Doing so so on bnoth machien sshould increase your throughput.
> A good reference for all the syctl variable is available at
> the freebsd manual may have em soemwhere but i cant recall
>"I think there is a world market for maybe five computers."
> - IBM Chairman Thomas Watson, 1943
>->From: Simon [mailto:simon at optinet.com]
>->Sent: Wednesday, July 09, 2003 1:19 PM
>->To: freebsd-isp at freebsd.org; freebsd-questions at freebsd.org; Max Clark
>->Subject: Re: How do I max a 6Mbps link
>->Sounds like you have a problem with your server/network hardware or
>->firewall/proftpd settings. FreeBSD out of the box on low-end
>->can easily sustain 6mbps link, which is roughly 3megs/sec. Make sure
>->your harddrive on receiving end can write at least this fast
>->and your network
>->is capable of such transfers. Sometimes faulty switches/cable
>->cause packet loss/delays, causing a bottleneck. It could be a
>->things, but I would start with testing your network.
>->On Wed, 9 Jul 2003 10:12:03 -0700, Max Clark wrote:
>->>What configuration changes do I need to make to two
>->freebsd-stable boxes to
>->>fully max out a 6Mbps/220ms network link? This is for bulk
>->>The target application is proftpd with ncftpd as the client.
>->>Thanks in advance,
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