The cable modem is plugged into a 10mbit ethernet card. Putting throttling will do, but isn't it strange that I'm capped at a certain speed, yet I can send out 10mbit? Anyone else has the same problem as I do?
> Use a protocol that does flow control, such as TCP, or put your own > throttling into the sending loop. Doesn't this mean that if I create a UDP socket in Winsock and send it as fast as possible it would reach ~10mbit, since UDP has no flow control? If no, any ideas how Windows itself does the capping? I thought cable modem caps were physically on the cable modem itself which I thought would block the packets until speed is synchronized :( If I send too fast, above my cap limit, does it mean I lose packets? If yes, I can't rely on their arrival can I? Thanks, Daniel ----- Original Message ----- From: "Guy Harris" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, July 14, 2003 3:07 AM Subject: Re: [WinPcap-users] Sends too fast? > On Sun, Jul 13, 2003 at 07:42:52PM +0100, Daniel Frimerman wrote: > > I have cable, it can send 128kbits upstream. > > When I used a sending loop, I generated 10mbits stream. > > Does the cable modem plug directly into your computer as a network > interface, or is it connected to your computer on a 10Mb Ethernet? > > If the latter (as I suspect is the case), and your sending loop is just > blindly sending packets without using a protocol with any form of flow > control, then your sending loop has no way of knowing that the path to > the ultimate destination supports only 128Kb, and thus won't be > automatically limited to sending at 128Kb. > > > How can I fix it? > > Use a protocol that does flow control, such as TCP, or put your own > throttling into the sending loop. > > > ================================================================== > This is the WinPcap users list. It is archived at > http://www.mail-archive.com/[EMAIL PROTECTED]/ > > To unsubscribe use > mailto: [EMAIL PROTECTED] > ================================================================== ================================================================== This is the WinPcap users list. It is archived at http://www.mail-archive.com/[EMAIL PROTECTED]/ To unsubscribe use mailto: [EMAIL PROTECTED] ================================================================== ================================================================== This is the WinPcap users list. It is archived at http://www.mail-archive.com/[EMAIL PROTECTED]/ To unsubscribe use mailto: [EMAIL PROTECTED] ==================================================================
