For the first time I tried accessing the coda file system over a Linux
IP masqueraded link and found that only files below some size (not
exactly known, something more than 2000 bytes, I think) would be
transferred. Those files were reliably transferred, anything larger
would get a string of 3 "server tleepslib.sk.tsukuba.ac.jp nak'ed"
messages and then give up. It didn't matter whether the connection
was presumed to be strong or adaptive.
For the small files I would occasionally (rarely) get the "server
tleepslib.sk.tsukuba.ac.jp nak'ed" message, but at most once; all
small file transfers always succeeded.
The network configuration is
server (tleepslib.sk.tsukuba.ac.jp; runs codasrv and venus)
^
|
LAN
|
v
router (turnbull.sk.tsukuba.ac.jp; runs venus, and Linux IP
masquerading for the PPP link)
^
|
PPP over 14.4 kbits POTS
|
v
client (uwakimon.localnet on a private network; runs venus)
Coda is 5.3.6 (plus a few patches more or less from CVS updates within
2 weeks of the release of 5.3.6, I can get exact versions if needed).
Linux kernels are 2.2.10 or 2.2.14, custom configured for my needs but
unpatched; in particular, I'm using the stock coda.o modules.
I wondered if this might be related to Greg Troxel's MTU size patch
for IPSec tunnels and mobile IP.
Oops, looking at /usr/src/linux/.config ... what happened to
CONFIG_IP_ALWAYS_DEFRAG?
--
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Institute of Policy and Planning Sciences Tel/fax: +81 (298) 53-5091
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