Subject: Re: tl question
To: Jason R Thorpe <>
From: Sean Davis <>
List: tech-net
Date: 06/23/2001 23:12:11
Oh, okay. That would probably explain why ifconfig tl0 link0 reports that
the interface has lost carrier a couple times and slowed down a good bit
since I took that out of dev/pci/if_tl.c... I'll grab the original from cvs
and put it back.

Thanks for your help, I had no idea what that packet was :)


On Sat, Jun 23, 2001 at 04:49:35PM -0700, Jason R Thorpe wrote:
> 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 <>