On Wed, Nov 14, 2001 at 07:25:15PM +0000, Ian Pratt wrote: > > > BTW, the problem I mentioned some time ago of pppd hanging at the second > > login after t39m power cycle is fixed after the upgrade of the firmware > > of the phone too. but before doing the upgrade I found a way to > > workaround it on the linux side too: you only need to comment out > > default-asyncmap in the ppp/options. > > Thanks very much for the tip about avoiding the pppd hang on the > second connect attempt. > > Following your lead, I found that adding "receive-all" to my pppd > options (/etc/ppp/peers/t39-gprs) solved the problem. > > BTW, I have the following T39 firmware version: > at+cgmm : "1130102-BVT39m" > at+cgmr : "R2G CXC125268" > > > However, even with the max_baud_rate = 115200 I'm afraid things > still aren't entirely happy with my Sony Vaio N505X talking to > the T39 over IrDA. > > Using the RS232 cable, I get TCP throughput of around 3.6KB/s > (28.8Kb/s). Using IrDA with an identical setup (and phone > position) I get only 1.2KB/s. I've tried all the obvious things > like changing the distance between the Ir sensors etc.
the latency is horrible for me too (order of seconds), but never tried without irda stack in the middle (I simply don't have the cable :). There seems to be some huge packet loss here too. However I never investigated further because this extremely slow link is usually enough to read a few emails and a few webpages on the road (and you know it's free of charge in italy so even if it is slow it's still very good :), but I'd really like if it could become faster and I also suspect it's so slow because of an irda problem... for the record, the laptop is a dell inspiron setup as SIR in the bios. Andrea _______________________________________________ Linux-IrDA mailing list - [EMAIL PROTECTED] http://www.pasta.cs.UiT.No/mailman/listinfo/linux-irda
