Well, you need to pass the speed to pppd as 115200, not 57600. You see, the set_serial spd_vhi flag sets what speed will be used if 38400 is selected. However, pppd can set the speed to 115200 just fine if you specify it. You're specifying 57600 and that's what you're getting.
Xiangyang Ha wrote: > Currently we are building two Debian boxes(2.0.30) running as routers with a > PPP link in between. Things are mostly going fine except the link throughput. > 56kbps is the best it gets while we are expecting over 100kbps since we are > using the 16550A UART serial cards. > > Here's the details: > ====== serial port settings ===================== > /dev/ttyS0, Line 0, UART: 16550A, Port: 0x03f8, IRQ: 4 > Baud_base: 115200, close_delay: 50, divisor: 0 > closing_wait: 3000, closing_wait2: infinte > Flags: spd_vhi skip_test session_lockout > > ====== ppp link settings ======================== > pppd persist passive proxyarp /dev/ttyS0 57600 & (local) > pppd persist passive defaultroute /dev/ttyS0 57600 & (remote) > > The reason why we didn't set the speed up to 115200 in pppd is that it > will bring the link down! (while using Slackware doesn't have this situation) > > We were acknowledged that a combination of > "setserial -b /dev/ttyS0 spd_vhi" and > "pppd persist passive proxyarp /dev/ttyS0 38400 &" will achieve the full > speed > of 115200, yet the testing result we have is just slower that using 57600. > > Not any clue in Robert Hart's Linux PPP HOWTO, nor in "The Linux Serial HOWTO > by Greg Hankins". Any pointer? > Thanks in advance. > > Xiangyang Ha > > -------------------------------------------------------- > Xiangyang Ha > [EMAIL PROTECTED] > Computer Science Department > College of Science and Technology > Maharishi University of Management > (Maharishi International University 1971-1995) > -------------------------------------------------------- > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] -- Jens B. Jorgensen [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
