高频 | 4个知识点让你学会选百兆交换机还是千兆交换机
<section style="box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section style="max-width: 100%;vertical-align: middle;display: inline-block;box-sizing: border-box;"></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="line-height: 1.9;letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;"><span style="font-size: 14px;box-sizing: border-box;">在做小型网络监控方案的时候，常常会因为选配的交换机不当导致卡顿、延迟等情况，那么我们应该如何根据实际情况选择合适带宽的交换机呢？</span></p><p style="box-sizing: border-box;"><span style="font-size: 14px;box-sizing: border-box;">来来看这里~传输小课堂上课啦！</span></p></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section style="max-width: 100%;vertical-align: middle;display: inline-block;box-sizing: border-box;"></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="margin: 10px 0%;box-sizing: border-box;"><section style="display: inline-block;width: 100%;vertical-align: top;box-shadow: rgb(0, 0, 0) 0px 0px 0px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="text-align: center;box-sizing: border-box;"><section style="display: inline-block;vertical-align: top;width: 22%;border-width: 1px;border-radius: 0px;border-style: solid;border-color: rgb(62, 62, 62);background-color: rgb(252, 240, 223);padding-top: 4px;padding-bottom: 4px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="text-align: left;box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section></section><section style="display: inline-block;vertical-align: top;width: 10%;border-style: solid solid solid none;border-width: 1px;border-radius: 0px;border-color: rgb(62, 62, 62);background-color: rgb(213, 205, 222);padding-top: 4px;padding-bottom: 4px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="text-align: left;box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="margin-top: -25px;margin-right: 0%;margin-left: 0%;transform: translate3d(8px, 0px, 0px);text-align: center;box-sizing: border-box;"><section style="display: inline-block;vertical-align: top;width: 22%;border-width: 1px;border-radius: 0px;border-style: solid;border-color: rgb(62, 62, 62);background-color: rgb(255, 255, 255);padding: 4px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">实际带宽</strong></p></section></section></section></section><section style="display: inline-block;vertical-align: top;width: 10%;border-style: solid solid solid none;border-width: 1px;border-radius: 0px;border-color: rgb(62, 62, 62);background-color: rgb(255, 255, 255);padding: 4px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">Ⅰ</strong></p></section></section></section></section></section></section></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="margin-top: 0.5em;margin-bottom: 0.5em;text-align: center;box-sizing: border-box;"><section style="width: 50px;height: 20px;padding-top: 5px;margin-left: auto;box-sizing: border-box;"><section style="width: 50px;height: 1px;margin-bottom: -6px;background-color: rgb(249, 110, 87);box-sizing: border-box;"></section><section style="width: 1px;height: 20px;margin-left: 44px;background-color: rgb(249, 110, 87);box-sizing: border-box;"></section></section><section style="margin-top: -9px;margin-bottom: -5px;padding-right: 10px;padding-left: 5px;box-sizing: border-box;"><section style="border-width: 1px;border-style: solid;border-color: rgb(249, 110, 87);padding: 10px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="text-align: left;box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="text-align: left;font-size: 14px;line-height: 1.9;letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;">我们常用的交换机的实际带宽利用率是理论值的50%-70%，所以一个百兆口的实际可利用带宽在50M-70M。</p><p style="box-sizing: border-box;"><br style="box-sizing: border-box;">每台摄像机需要多少带宽呢？</p><p style="box-sizing: border-box;">先跟大家介绍一个概念--<span style="color: rgb(255, 134, 142);box-sizing: border-box;">码率</span>。<br style="box-sizing: border-box;">码率是描述视频数据量大小的参数，单位通常为Kbps，意义是每秒有多少Kb的数据。如果将此参数÷1024，单位可以换算为Mbps，即每秒钟有多少Mb的数据。</p></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="text-align: left;box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section></section></section><section style="width: 10px;height: 10px;border-bottom: 1px solid rgb(249, 110, 87);border-left: 1px solid rgb(249, 110, 87);box-sizing: border-box;"></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section style="max-width: 100%;vertical-align: middle;display: inline-block;box-sizing: border-box;"></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="margin: 10px 0%;box-sizing: border-box;"><section style="display: inline-block;width: 100%;vertical-align: top;box-shadow: rgb(0, 0, 0) 0px 0px 0px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="text-align: center;box-sizing: border-box;"><section style="display: inline-block;vertical-align: top;width: 22%;border-width: 1px;border-radius: 0px;border-style: solid;border-color: rgb(62, 62, 62);background-color: rgb(252, 240, 223);padding-top: 4px;padding-bottom: 4px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="text-align: left;box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section></section><section style="display: inline-block;vertical-align: top;width: 10%;border-style: solid solid solid none;border-width: 1px;border-radius: 0px;border-color: rgb(62, 62, 62);background-color: rgb(213, 205, 222);padding-top: 4px;padding-bottom: 4px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="text-align: left;box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="margin-top: -25px;margin-right: 0%;margin-left: 0%;transform: translate3d(8px, 0px, 0px);text-align: center;box-sizing: border-box;"><section style="display: inline-block;vertical-align: top;width: 22%;border-width: 1px;border-radius: 0px;border-style: solid;border-color: rgb(62, 62, 62);background-color: rgb(255, 255, 255);padding: 4px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">H.264</strong></p></section></section></section></section><section style="display: inline-block;vertical-align: top;width: 10%;border-style: solid solid solid none;border-width: 1px;border-radius: 0px;border-color: rgb(62, 62, 62);background-color: rgb(255, 255, 255);padding: 4px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">Ⅱ</strong></p></section></section></section></section></section></section></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="margin-top: 0.5em;margin-bottom: 0.5em;text-align: center;box-sizing: border-box;"><section style="width: 50px;height: 20px;padding-top: 5px;margin-left: auto;box-sizing: border-box;"><section style="width: 50px;height: 1px;margin-bottom: -6px;background-color: rgb(249, 110, 87);box-sizing: border-box;"></section><section style="width: 1px;height: 20px;margin-left: 44px;background-color: rgb(249, 110, 87);box-sizing: border-box;"></section></section><section style="margin-top: -9px;margin-bottom: -5px;padding-right: 10px;padding-left: 5px;box-sizing: border-box;"><section style="border-width: 1px;border-style: solid;border-color: rgb(249, 110, 87);padding: 10px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="text-align: left;box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="text-align: left;font-size: 14px;line-height: 1.9;letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;">对于海康威视H.264的网络摄像机来说，计算码率值时，通常是需要将主码流大小与子码流大小加起来。<br style="box-sizing: border-box;"><span style="color: rgb(255, 134, 142);box-sizing: border-box;">（*主码流一般是高清画面，用于录像和单画面显示；子码流一般是标清画面，用于网传或者多画面显示，通常为0.5M）</span><br style="box-sizing: border-box;">不同像素的摄像机常见码率如下：<br style="box-sizing: border-box;">100W/130W=2.5M</p><p style="box-sizing: border-box;">200W=4.5M</p><p style="box-sizing: border-box;">300W=6.5M<br style="box-sizing: border-box;">如果用百兆交换机，以实际带宽是50M来算：<br style="box-sizing: border-box;">50÷2.5=20 可接20个100W/130W的摄像机50÷4.5=11 即可以接11个200W的摄像机，50÷6.5=7 即可以接7个300W的摄像机。</p></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="text-align: left;box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section></section></section><section style="width: 10px;height: 10px;border-bottom: 1px solid rgb(249, 110, 87);border-left: 1px solid rgb(249, 110, 87);box-sizing: border-box;"></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section style="max-width: 100%;vertical-align: middle;display: inline-block;box-sizing: border-box;"></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="margin: 10px 0%;box-sizing: border-box;"><section style="display: inline-block;width: 100%;vertical-align: top;box-shadow: rgb(0, 0, 0) 0px 0px 0px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="text-align: center;box-sizing: border-box;"><section style="display: inline-block;vertical-align: top;width: 22%;border-width: 1px;border-radius: 0px;border-style: solid;border-color: rgb(62, 62, 62);background-color: rgb(252, 240, 223);padding-top: 4px;padding-bottom: 4px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="text-align: left;box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section></section><section style="display: inline-block;vertical-align: top;width: 10%;border-style: solid solid solid none;border-width: 1px;border-radius: 0px;border-color: rgb(62, 62, 62);background-color: rgb(213, 205, 222);padding-top: 4px;padding-bottom: 4px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="text-align: left;box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="margin-top: -25px;margin-right: 0%;margin-left: 0%;transform: translate3d(8px, 0px, 0px);text-align: center;box-sizing: border-box;"><section style="display: inline-block;vertical-align: top;width: 22%;border-width: 1px;border-radius: 0px;border-style: solid;border-color: rgb(62, 62, 62);background-color: rgb(255, 255, 255);padding: 4px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">H.265</strong></p></section></section></section></section><section style="display: inline-block;vertical-align: top;width: 10%;border-style: solid solid solid none;border-width: 1px;border-radius: 0px;border-color: rgb(62, 62, 62);background-color: rgb(255, 255, 255);padding: 4px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">Ⅲ</strong></p></section></section></section></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="margin-top: 0.5em;margin-bottom: 0.5em;text-align: center;box-sizing: border-box;"><section style="width: 50px;height: 20px;padding-top: 5px;margin-left: auto;box-sizing: border-box;"><section style="width: 50px;height: 1px;margin-bottom: -6px;background-color: rgb(249, 110, 87);box-sizing: border-box;"></section><section style="width: 1px;height: 20px;margin-left: 44px;background-color: rgb(249, 110, 87);box-sizing: border-box;"></section></section><section style="margin-top: -9px;margin-bottom: -5px;padding-right: 10px;padding-left: 5px;box-sizing: border-box;"><section style="border-width: 1px;border-style: solid;border-color: rgb(249, 110, 87);padding: 10px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="text-align: left;box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="text-align: left;line-height: 1.9;font-size: 14px;letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;">H.265技术让码流减半，不同像素的摄像机常见码率如下：<br style="box-sizing: border-box;">200W=2.5M</p><p style="box-sizing: border-box;">300W=3.5M</p><p style="box-sizing: border-box;">400W=4.5M<br style="box-sizing: border-box;">同样是一台全百兆口的交换机，以50%的利用率来计算：<br style="box-sizing: border-box;">50÷2.5=20 即可以接20个200W的摄像机50÷3.5=14 即可以接14个300W的摄像机50÷4.5=11 即可以接11个400W的摄像机<br style="box-sizing: border-box;">从此看出，<span style="color: rgb(255, 134, 142);box-sizing: border-box;">H.265技术不仅让存储减半，还可以让带宽压力减半，节约交换机资源</span>。</p></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="text-align: left;box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section></section></section><section style="width: 10px;height: 10px;border-bottom: 1px solid rgb(249, 110, 87);border-left: 1px solid rgb(249, 110, 87);box-sizing: border-box;"></section></section></section></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section style="max-width: 100%;vertical-align: middle;display: inline-block;box-sizing: border-box;"></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="margin: 10px 0%;box-sizing: border-box;"><section style="display: inline-block;width: 100%;vertical-align: top;box-shadow: rgb(0, 0, 0) 0px 0px 0px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="text-align: center;box-sizing: border-box;"><section style="display: inline-block;vertical-align: top;width: 22%;border-width: 1px;border-radius: 0px;border-style: solid;border-color: rgb(62, 62, 62);background-color: rgb(252, 240, 223);padding-top: 4px;padding-bottom: 4px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="text-align: left;box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section></section><section style="display: inline-block;vertical-align: top;width: 10%;border-style: solid solid solid none;border-width: 1px;border-radius: 0px;border-color: rgb(62, 62, 62);background-color: rgb(213, 205, 222);padding-top: 4px;padding-bottom: 4px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="text-align: left;box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="margin-top: -25px;margin-right: 0%;margin-left: 0%;transform: translate3d(8px, 0px, 0px);text-align: center;box-sizing: border-box;"><section style="display: inline-block;vertical-align: top;width: 22%;border-width: 1px;border-radius: 0px;border-style: solid;border-color: rgb(62, 62, 62);background-color: rgb(255, 255, 255);padding: 4px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">千兆口</strong></p></section></section></section></section><section style="display: inline-block;vertical-align: top;width: 10%;border-style: solid solid solid none;border-width: 1px;border-radius: 0px;border-color: rgb(62, 62, 62);background-color: rgb(255, 255, 255);padding: 4px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">Ⅳ</strong></p></section></section></section></section></section></section></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="margin-top: 0.5em;margin-bottom: 0.5em;text-align: center;box-sizing: border-box;"><section style="width: 50px;height: 20px;padding-top: 5px;margin-left: auto;box-sizing: border-box;"><section style="width: 50px;height: 1px;margin-bottom: -6px;background-color: rgb(249, 110, 87);box-sizing: border-box;"></section><section style="width: 1px;height: 20px;margin-left: 44px;background-color: rgb(249, 110, 87);box-sizing: border-box;"></section></section><section style="margin-top: -9px;margin-bottom: -5px;padding-right: 10px;padding-left: 5px;box-sizing: border-box;"><section style="border-width: 1px;border-style: solid;border-color: rgb(249, 110, 87);padding: 10px;box-sizing: border-box;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="text-align: left;box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="text-align: left;font-size: 14px;line-height: 1.9;letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;">通常，接入层（主要连接摄像机）交换机只需1~2个口为千兆口即可。</p><p style="box-sizing: border-box;">因为对于连接摄像机的网口来讲，只需满足对应单台摄像机的码流传输，通常不超过10M。</p><p style="box-sizing: border-box;">压力较大的网口，是汇集数据连接到录像机或者其他汇聚设备的网口（交换机的上行口），此网口的数据量才是之前我们计算的码率之和。如码率之和超过50M，则只需采购有1~2个网口是千兆网口的交换机即可。<br style="box-sizing: border-box;"><span style="color: rgb(255, 134, 142);box-sizing: border-box;">*注意，千兆网口通常配合超五类网线或六类网线使用。</span></p></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="text-align: left;box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section></section></section><section style="width: 10px;height: 10px;border-bottom: 1px solid rgb(249, 110, 87);border-left: 1px solid rgb(249, 110, 87);box-sizing: border-box;"></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="font-size: 12px;box-sizing: border-box;"><p style="box-sizing: border-box;">*因不同交换机的实际带宽利用率不同，以上数据有上下浮动的空间。</p></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="box-sizing: border-box;"><p style="text-align: center;box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="color: rgb(255, 134, 142);box-sizing: border-box;">通过以上的讲解，</span></strong></p><p style="text-align: center;box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="color: rgb(255, 134, 142);box-sizing: border-box;">大家对交换机是否有了新的认知呢？</span></strong></p></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section style="max-width: 100%;vertical-align: middle;display: inline-block;box-sizing: border-box;"></section></section></section><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="box-sizing: border-box;"><p style="box-sizing: 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6em;box-sizing: border-box;"><section style="width: 6em;display: inline-block;box-sizing: border-box;"></section><section style="width: 6em;display: inline-block;box-sizing: border-box;"></section></section><section style="display: inline-block;vertical-align: top;padding-right: 5px;padding-left: 5px;box-sizing: border-box;max-width: 60% !important;"><section class="V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section style="box-sizing: border-box;"><section style="font-size: 12px;box-sizing: border-box;"><p style="box-sizing: border-box;">长按识别二维码下载</p></section></section></section></section></section></section></section></section><p><br></p>
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