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Old 11-25-2005, 02:54 PM   #1
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bandwidth throttling

Just installed Slackware 10.2
Good 2 B back in the slackware seat
Last time I was here it was all 10baseT and dialup...

The box is hanging off a Belkin 100baseT switch and I am sat at a windoze 2k desktop (someone has to do it).

I am experiencing trouble trying to ftp (vsftp) large(ish) (50M) files onto the new box - they just will not go.

One of my local gurus reckons the Belkin probably can't keep up with the NICs and lent me a crossover cat5 and - hey! - he's right. Not only does the ftp work but the annoying SSH delays go too.

The Belkin clearly does a fine job of fanning out a net but is not up to speed with crosstown traffic.

Solution 1 is to junk the Belkin and pick up a Netgear


I have a Belkin and local guru reported similar probs when configuring a wireless net so I am interested to know how to throttle back my ethers. I have found sttings in vsftpd_conf but that won't help sshd.

?is there a system wide ifconfig throttle?

Old 11-25-2005, 03:59 PM   #2
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well, slackware comes with the iproute2 package...

just my $0.02...

Last edited by win32sux; 11-25-2005 at 04:01 PM.
Old 11-25-2005, 05:21 PM   #3
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give that man a cigar

that is just the sort of pointer i needed - cheers

further investigation reveals that this is not simply a bandwidth problem
current thinking blames the Belkin
it's an easy victim and will do as a scapegoat for now

Old 11-26-2005, 01:00 AM   #4
Registered: Mar 2003
Distribution: Debian
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Often times ethernet performance problems are because the autonegotiation failed.

Run mii-tool and check the output. If the Belkin is truly a switch it should report:
# mii-tool
eth0: negotiated 100baseTx-FD, link ok
FD= Full duplex.
HD= Half duplex.

You can try to force full duplex like this
# mii-tool -F 100baseTx-FD
or go back to auto with this
# mii-tool -r
Old 11-27-2005, 07:20 AM   #5
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All issues have now been resolved

I stopped messing about and moved the slackware box up the network
The result being that all network functions now seem to operate as expected
and I am a slightly wiser person

Just for the record

mii-tool checks out the belkin F5D5130-5 as FD
my conclusion is that it is just a bit pants
it sortof works but just not as well as it should
up-down traffic gives no problems
pity about the crosstown traffic
and it looks like belkin feel the same as they have dicontinued it

Many thanks for all the help


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