<div style="font-family: '.Helvetica NeueUI'; font-size: 16px; -webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); ">Excessive </div>Near End Next patch cable bad or patch cable too short，4300测，出现这个问题是什么原因，求解，1800测的过。六类跳线，福禄克测试