Jeremy Utley wrote:
On 7/12/05, Robert Eliassen <[EMAIL PROTECTED]> wrote:
Is TCP/IP often (always?) encapsulated in NetROM or similar protocols over
AX.25, or is it possible (implemented somewhere) to send IP-packets right in
AX.25's payload? The routing has to be figured out some way...
From what I remember, both are possible. TCP/IP can be encapsulated
into the payload of an AX.25 frame, or it can also be a part of netrom
communication.
That's correct. With TCP/IP on packet, 40 of the 256 bytes are
overhead. Putting it on Netrom adds another 20 bytes. The real killer
is that all the ACK packets have the same (40 or 60 bytes) of overhead.
Bytes? What are bytes these days? Time to download another 2.4 GB
file off the Tivo.
Bill
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