*- On 6 Jan, Shao Zhang wrote about "Re: modem RX rate is considerable slower than RX rate" > > I think it is the modem's problem. I have a US Robotics V90 > modem, which I think the remote isp does not support it. > > In the chat script, if I use the initialise command ATZ, I am > able to connect, but only at 33600. > > If I use the US Robotics V90's initialise command AT&F, I am > able to get the line speed 46600, but then failed to > authentificate with the remote end. > > What does not make sense is that, the TX rate is so much slower > than RX rate. >
I have the same problems. Try playing around with your mtu and mru settings. I get better upload times with a mtu/mru of 552 as compared to the default 1500. The TX speeds are still not great though. If you have in internal network that uses the modem as its internet gateway then make sure and set mtu of the network port to the same thing. IPMasquerading and other protocols tend to choke if the mtu/mru's of the different links in the chain are of different sizes.(no I don't know why). Brian Servis -- ------------------------------------------------------------------------ Mechanical Engineering | Never criticize anybody until you Purdue University | have walked a mile in their shoes, [EMAIL PROTECTED] | because by that time you will be a http://www.ecn.purdue.edu/~servis | mile away and have their shoes.