You want to lower it (see 3)
> retrain, which lasts a few seconds each, the errored bits cause an internal modem retransmit,
> delaying logical delivery of the data to Linux by a few hundred milliseconds at a time. This timing
> variability, which is not Linux's fault, exacerbates (I hypothesize) a third problem:
If you get a lot of retrains fix your phone line 8) but also check your
manuals. You can tell the modem to refuse to retrain down a speed but to
keep the current speed on most modems.
> ensure that packets aren't dropped due to overflows of the outgoing buffer? If not, wouldn't it be
> better to keep txquueuelen high and just grin and bear the latency for interactive use?
Generally lower txqlen is better. It speeds up feedback
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/