I saw lots of these (30-40 per minute under load) on my link to home
(2x 56Kbps ISDN DOSBS), from a BitSURFR Pro to a Livingston PM3.
Thinking it was serial-related, I played with MTUs and the like for
some time without any improvement. Finally, I disabled VJ header
compression, and the messages ceased *entirely*. I haven't looked any
further. (My Linux box has been running current 2.1.x kernels, for
whatever that might be worth.)
I *might* recall reading about VJ-related issues between Linux and
PortMasters, maybe a year ago (time ~ -infinity!), but haven't been
able to find anything in a few minutes of searching, so maybe I'm
dreaming it.
There may not be *modems* involved, but what about PPP links?
Todd
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