Subject: Re: tl question
To: Andrew Gillham <>
From: Jason R Thorpe <>
List: tech-net
Date: 06/23/2001 16:49:35
On Sat, Jun 23, 2001 at 11:59:39AM -0700, Andrew Gillham wrote:

 > The NetBSD 'tl' driver is sending a "LLC Test Packet" apparently.
 > Look at /sys/dev/pci/if_tl.c and search for 'LLC' if you want to see it.
 > Apparently it is sent if the interface has been idle for a certain
 > amount of time.
 > I'm sure you could comment that section out if you want.

That's how the link detection works on the ThunderLAN -- you send out
an LLC test packet, and if you don't hear a response, your link is down,
or you need to try another media type.

        -- Jason R. Thorpe <>