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Date:      Thu, 30 Dec 1999 01:23:36 -0500 (EST)
From:      Bill Paul <wpaul@skynet.ctr.columbia.edu>
To:        w8sdz@mail.petersen.net (Keith Petersen)
Cc:        bugs@freebsd.org, toasty@dragondata.com
Subject:   Re: Poor Internet throughput on FreeBSD 3.3-RELEASE
Message-ID:  <199912300623.BAA24841@skynet.ctr.columbia.edu>
In-Reply-To: <19991230001901.w8sdz@mail.petersen.net> from "Keith Petersen" at Dec 30, 99 00:19:01 am

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Of all the gin joints in all the towns in all the world, Keith Petersen 
had to walk into mine and say:

> toasty@dragondata.com (Kevin Day) wrote:
> > What type of ethernet cards are you using? Posting a 'dmesg' from both
> > systems would probably help, too.
> 
> New machine:

> xl0: <3Com 3c905-TX Fast Etherlink XL> rev 0x00 int a irq 5 on pci0.9.0
> xl0: Ethernet address: 00:60:97:9c:ed:5b
> xl0: autoneg complete, link status good (half-duplex, 10Mbps)

Oh swell.

You haven't shown us netstat -in, so we don't know if there are any
collisions or other errors being racked up. You also don't say if
the NIC is plugged directly into the ISDN router or if both are
connected to a hub. If it is connected directly, check that the
cable is terminated properly (i.e. that it hasn't been set up as
a "straight through" cable, where all four pairs of wires are lined
up one right after the other, 1-2, 3-4, 5-6, 7-8 -- this is not
how it's supposed to be done, and I have to ask you to check this
as I still run into improperly terminated patch cables every so
often, much to my neverending astonishment).

Do me the following:

- With the machine running, type the following, as root:
  ifconfig xl0 media 10baseT/UTP
- Unplug the ethernet cable that connects the NIC to the ISDN router.
- Wait 5 seconds.
- Plug the cable back in.
- Try again.
- Watch what happens.
- Tell us what you see.

-Bill

-- 
=============================================================================
-Bill Paul            (212) 854-6020 | System Manager, Master of Unix-Fu
Work:         wpaul@ctr.columbia.edu | Center for Telecommunications Research
Home:  wpaul@skynet.ctr.columbia.edu | Columbia University, New York City
=============================================================================
 "It is not I who am crazy; it is I who am mad!" - Ren Hoek, "Space Madness"
=============================================================================


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