[FADCA] Disconnect Problem

[Chuck Hast]

On 5/15/06, Charles S Schuman <k4gbb at earthlink.net> wrote:
> Doug Christ wrote:
> > I discovered a new twist. If I connect to the DOS FPAC switch in town
> > and then to the BBS through the network, I can read bulletins with no
> > trouble what so ever.
> >
> > Doug/KN4YT
> >
> I'm thinking.....
> There was a discussion sometime back about packet length. As a result I
> think I adjusted some of the values in axports on the CD. There is/was
> some confusion about the packlength. I believe the max is 255.
>
> Maybe Chuck can shed some light on that subject.

I am adding the fpac list to this as Bernard or some of the other FPAC
guys may be able to shed some light on this.

I run my level 2 links at the max char of 255 (will give a maxchar of 256
characters in the frame) I allow the maxchar for the level 3 stuff to be larger
(ax25 in Linux allows for frames of up to 512 chars) that way the level 3
stuff can work as it was originally done in ROSE, i.e. if you hit it with a
256 character frame it does not have to fragment in order to get it's level
3 stuff in there, it just adds the level 3 stuff to the 256 byte frame and
builds a larger frame. If you do not do that it will fragment, but I think that
also some devices will drop the link rather than fragment, I am not sure
on this.

Also I recall that back when I first started working with the switch I had to
change the check timer it was way too fast and I was getting dropped links
due to it timing out before a transaction would be finished. You should check
that out too.



-- 
Chuck Hast  -- KP4DJT --
To paraphrase my flight instructor;
"the only dumb question is the one you DID NOT ask resulting in my going
out and having to identify your bits and pieces in the midst of torn
and twisted metal."