[aprssig] OpenTrac layer 3 discussion on OpenTrac-spec list
jdw at eng.uah.edu
Fri Jan 6 17:32:45 CST 2006
I am trying to get a discussion started on a layer 3 network design
for the OpenTrac protocol. This is off-topic for the APRSSIG, so
please don't reply on the APRSSIG.
The OpenTrac spec, as it stands, describes a presentation layer (OSI
layer 6). The spec does not directly address layer 3 issues.
Among possible topics would be:
addressing - unicast, multicast, and broadcast addressing schemes, SSIDs
routers - define requirements and behavior of OpenTrac routers
interfacing to various layer 2 networks - AX.25, OpenTrac UDP/IP*,
and APRS-IS over TCP/IP come immediately to mind. this would include
address mapping/resolution issues. (* yes, I know UDP is IP layer 4)
gateways - how to properly gateway OT packets to other networks such
as APRS-RF, APRS-IS, and vice-versa
"QoS" - address data loss/FEC at a higher layer.
If you are interested in such a discussion, please subscribe to the
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