16 Jul
2024
16 Jul
'24
3:05 p.m.
On Jul 15, 2024, at 10:09 PM, Thomas DeBellis
<tommytimesharing(a)gmail.com> wrote:
Yes, that's the other thing that bothered me, that NML was not reporting what is in
the config file
Apparently it is, as a line parameter -- a TOPS-10/20 OS specific parameter. The executor
parameters are not the same thing, the details of the definition are different and they
serve a different purpose. The trouble is in those details: the executor parameters are,
in effect, the routing data packet payload size (NSDU size) plus six, while the line
parameter is the datalink payload size (DSDU). Since routing data headers on Ethernet are
21 bytes rather than 6 bytes long, using the same value for both is a problem.
An additional bit of confusion comes from the fact that I seem to have forgotten to do
adjacency buffer size checking when forwarding packets, so RSTS forwarding to TOPS20 was
correctly complaining but PyDECnet was not. That made it look like RSTS was wrong, when
in fact it is right and PyDECnet is wrong.
paul