From: Ivan Vladimirov <administrator@netwlan.net>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] Ethernet bridge overflow ?
Date: Mon, 26 Feb 2007 10:39:33 +0000 [thread overview]
Message-ID: <45E2B8E5.5070503@netwlan.net> (raw)
In-Reply-To: <45DF107C.8080403@wanadoo.fr>
Sébastien CRAMATTE wrote:
> Hello,
>
> I've setuped an ethernet bridge on a debian sarge 3.1 with l7-filter +
> ipp2 shapper rules
> The server is a supermicro p4sci + celeron pentium 4 base 3ghz + 512Mb
> + 2 ethernet e1000
>
> One interface is connected to a cisco catalyst switch
> The other interface is connected directly to a CMTS (a sort of router
> for cable modem) configured as bridge too.
>
> More than 20Mbps of bandwith cross this bridge. Most of this traffic is
> p2p (~80%)
> When traffic goes over 14Mbps the bridge seems to saturate (overflow ?
> ) and start to make colision and loose packets
>
> I've take a look to this paper
> http://facweb.cti.depaul.edu/jyu/Publications/Yu-Linux-TSM2004.pdf
>
> And with a duron 1,3Ghz+512 mbps he obtain these values
>
> Input Rate 28,444,444
> (bps)
> Latency 29
> (us)
> Throughput 28,000,000
> (bps)
> Linux CPU 77%
> Occupancy
>
> A duron 1,3 is less powered than a celeron p4 3 ... So I don't
> understand why I've got this problem :(
>
>
> When I make a "top" or "uptime" all seems that works well ...
> I've got rrdtool graphs that check cpu and load and seems normal too ...
>
> Does someone have got somes ideas ?
> Any clue or tips to isolate/resolve the problem are welcome
>
>
> Regards
>
> _______________________________________________
> LARTC mailing list
> LARTC@mailman.ds9a.nl
> http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
>
>
>
The problem you have is caused by L7-filter
There is a performance problem with this filter .
_______________________________________________
LARTC mailing list
LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
prev parent reply other threads:[~2007-02-26 10:39 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-23 16:04 [LARTC] Ethernet bridge overflow ? Sébastien CRAMATTE
2007-02-23 17:31 ` Larry Brigman
2007-02-23 18:30 ` Sébastien CRAMATTE
2007-02-26 10:39 ` Ivan Vladimirov [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=45E2B8E5.5070503@netwlan.net \
--to=administrator@netwlan.net \
--cc=lartc@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.