60 bytes from 00:01:02:03:04:05 (10.0.0.2): index=4436 time=130.798 usec
60 bytes from 00:01:02:03:04:05 (10.0.0.2): index=4437 time=189.399 usec
60 bytes from 00:01:02:03:04:05 (10.0.0.2): index=4438 time=4.703 msec
60 bytes from 00:01:02:03:04:05 (10.0.0.2): index=4439 time=191.152 usec
60 bytes from 00:01:02:03:04:05 (10.0.0.2): index=4440 time=137.136 usec
60 bytes from 00:01:02:03:04:05 (10.0.0.2): index=4441 time=192.476 usec
60 bytes from 00:01:02:03:04:05 (10.0.0.2): index=4442 time=135.642 usec
60 bytes from 00:01:02:03:04:05 (10.0.0.2): index=4443 time=195.059 usec
60 bytes from 00:01:02:03:04:05 (10.0.0.2): index=4444 time=108.263 usec
60 bytes from 00:01:02:03:04:05 (10.0.0.2): index=4445 time=176.353 usec
60 bytes from 00:01:02:03:04:05 (10.0.0.2): index=4446 time=127.711 usec
60 bytes from 00:01:02:03:04:05 (10.0.0.2): index=4447 time=182.029 usec
60 bytes from 00:01:02:03:04:05 (10.0.0.2): index=4448 time=210.172 usec
60 bytes from 00:01:02:03:04:05 (10.0.0.2): index=4449 time=182.902 usec
60 bytes from 00:01:02:03:04:05 (10.0.0.2): index=4450 time=103.740 usec
60 bytes from 00:01:02:03:04:05 (10.0.0.2): index=4451 time=190.671 usec
60 bytes from 00:01:02:03:04:05 (10.0.0.2): index=4452 time=204.851 usec
60 bytes from 00:01:02:03:04:05 (10.0.0.2): index=4453 time=163.100 usec
60 bytes from 00:01:02:03:04:05 (10.0.0.2): index=4454 time=96.656 usec
该arping输出从主机 PC 通过 ASIX Electronics Corp. AX88772 USB 转以太网适配器传输到带有以太网的 STM32 开发板。
--延迟通常如何实现低于 0.2ms？我以为全速 USB 设备的轮询时间为 1ms；适配器不应该显著降低速度吗？-- 这部分现在很清楚了，适配器是一种高速设备。
最大延迟 (4.703 毫秒) 大于最小延迟 (96.656 微秒) 48 倍的原因是什么？