Date: Wed, 25 Jun 2003 15:14:20 +0100 From: Andy Coates <andy@bribed.net> To: clemens fischer <ino-qc@spotteswoode.de.eu.org> Cc: freebsd-ipfw@freebsd.org Subject: Re: ipfw bandwidth shaping problems (intermittent latency) Message-ID: <20030625141420.GW84062@andy.btvs.net> In-Reply-To: <znk65kbp.fsf@ID-23066.news.dfncis.de> References: <20030625094802.GK84062@andy.btvs.net> <20030625102801.GM84062@andy.btvs.net> <znk65kbp.fsf@ID-23066.news.dfncis.de>
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clemens fischer (ino-qc@spotteswoode.de.eu.org) wrote:
> * Andy Coates:
>
> > 64 bytes from x.x.x.x: icmp_seq=0 ttl=248 time=70.803 ms
> > 64 bytes from x.x.x.x: icmp_seq=1 ttl=248 time=3.850 ms
> > 64 bytes from x.x.x.x: icmp_seq=2 ttl=248 time=3.551 ms
> > 64 bytes from x.x.x.x: icmp_seq=3 ttl=248 time=123.844 ms
>
> what type of network-card do you have installed? some people claim
> that this can be an issue with the card, although i don't believe this
> having tried a couple.
>
> PING (some external host): 56 data bytes
> 64 bytes from x1.x2.x3.x4: icmp_seq=0 ttl=246 time=74.959 ms
[snip]
The card is onboard (its an IBM netfinity 400R 1U high rackable type),
but uses the FXP driver:
fxp0@pci0:17:0: class=0x020000 card=0x105c1014 chip=0x12298086 rev=0x08 hdr=0x00
vendor = 'Intel Corporation'
device = '82557/8/9 EtherExpress PRO/100(B) Ethernet Adapter'
class = network
subclass = ethernet
Also, if I remove all limiting (bw 0), there is no problem - so I wouldn't
say its a hardware fault. Just when the limiting is applied...
Cheers,
Andy.
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