<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hello, everyone! My name is Alimjan and i'm developing custom board with the ethernet device and i've got some problem <div>with capturing data from it ..</div><div><br></div><div>I'm using Notebook Asus G1S with Windows XP + SP3 installed to connect to my board. Using WinPcap(4.1.1), i'm capture data from the board. So, i've found that delay between the captured packets is a very 'vary' i mean that it has huge <span class="Apple-style-span" style="font-family: 'Helvetica Neue'; font-size: 15px; white-space: pre-wrap; ">spread, e.g,</span></div><div><font class="Apple-style-span" face="'Helvetica Neue'" size="4"><span class="Apple-style-span" style="font-size: 15px; white-space: pre-wrap; ">at 10 mbits/s i've got 45-70 us delay, it is normal i gues, but some times this delay grow up to 3-7 ms (milliseconds), for example, distance between packets: 45 us, 46 us, 50 us, 47 us and so on.. then</span></font></div><div><font class="Apple-style-span" face="'Helvetica Neue'" size="4"><span class="Apple-style-span" style="font-size: 15px; white-space: pre-wrap; ">4 ms, 7 ms, 1 ms, and then again 53 us, 47 us and so on, the repeat... Number of 'normal' delay is also very 'vary', delay may appear in a different numbers of received packets, no logic :( </span></font></div><div><font class="Apple-style-span" face="'Helvetica Neue'" size="4"><span class="Apple-style-span" style="font-size: 15px; white-space: pre-wrap; "><br></span></font></div><div><font class="Apple-style-span" face="'Helvetica Neue'" size="4"><span class="Apple-style-span" style="font-size: 15px; white-space: pre-wrap; ">My laptop is directly connected to my board e.g. cross TX->RX, RX->TX, no hubs or something. Also using oscilloscope connected to the TX+ and TX- lines i've found that it is no delay between packet that my custom board (device) have send. Anybody please, help me to solve this situation,</span></font></div><div><font class="Apple-style-span" face="'Helvetica Neue'" size="4"><span class="Apple-style-span" style="font-size: 15px; white-space: pre-wrap; ">may be i'm doing something wrong?</span></font></div><div><font class="Apple-style-span" face="'Helvetica Neue'" size="4"><span class="Apple-style-span" style="font-size: 15px; white-space: pre-wrap; "><br></span></font></div><div><font class="Apple-style-span" face="'Helvetica Neue'" size="4"><span class="Apple-style-span" style="font-size: 15px; white-space: pre-wrap; ">P.S. i'm using winpcap exapmle code to capture the packets with callback method and within pcap_next_ex.</span></font></div><div><font class="Apple-style-span" face="'Helvetica Neue'" size="4"><span class="Apple-style-span" style="font-size: 15px; white-space: pre-wrap; "><br></span></font></div><div><font class="Apple-style-span" face="'Helvetica Neue'" size="4"><span class="Apple-style-span" style="font-size: 15px; white-space: pre-wrap; ">P.P.S i'm sorry for my english spelling skill, i hope that you can understand my.</span></font></div><div><font class="Apple-style-span" face="'Helvetica Neue'" size="4"><span class="Apple-style-span" style="font-size: 15px; white-space: pre-wrap; "><br></span></font></div><div><font class="Apple-style-span" face="'Helvetica Neue'" size="4"><span class="Apple-style-span" style="font-size: 15px; white-space: pre-wrap; ">Many thanks, bye..</span></font></div></body></html>