[ax25-layer2] AX.25 v2.2 Document

[James Wagner]

As a potential implementer, this would be a GREAT improvement in V2.2

Jim, KA7EHK

--- pete at ae5pl.net wrote:

> > -----Original Message-----
> > From: Andre PE1RDW
> > Sent: Sunday, October 09, 2005 4:08 PM
> > Subject: Re: [ax25-layer2] AX.25 v2.2 Document
> > 
> > the current modulo 128 implimentation that is used in linux 
> > can see the difference between modulo 8 and modulo 128 on the 
> > fly, agwpe can also decode modulo 128 but I don´t think it 
> > can make a modulo 128 connection.
> > I know some ax.25 implimentations can crash when they see 
> > modulo 128 on the frequentie but that is not the fault of 
> > modulo 128 but rather a poorly written ax.25 implimentation.
> 
> >From what I can determine, Linux is using one of the reserved bits
> in the source station SSID octet.  The default setting of both
> reserved bits is ones which Linux assumes is modulo 8.  If bit 6
> (0x40) is set to zero in the source station SSID octet, Linux
> considers this to be a modulo 128 packet.  This would be fine if it
> was added to the specification.
> 
> 73,
> 
> Pete Loveall AE5PL 
> 
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