是不是电信100M光纤最大就只能到100M

2025-02-16 12:16:32
推荐回答(2个)
回答1:

所谓百兆光纤是指接入的速率是100M,100M是指的是100Mbp(megabits per second
兆比特每秒),单位是bits,而不是一般文件大小和下载速度的单位bytes。byte是字节而bits是二进制位元,1byte=8bits。真正的速度应该是100X1024/8,如果算上线路的损耗,速度可能会更低。一般来说,250KB/秒左右的下载速度,ADSL带宽需要2M左右,要
达到360网速测试器显示的2MB/秒的下载速度,带宽需要10M到20M,目前来说只有光纤宽带用户才能达到,因为光纤的上行和下行是均衡的。要知道网络传输速度一定要明白网络传输速度的单位。我们一般说的百兆、千兆网络的单位是bps(比特率,即位/秒,bit/s)
,比如我们说网卡或光纤的传输速度是百兆,也就是100Mbps的意思。而在实际应用中(
Widnwos、网际快车、迅雷等)使用的传输单位是字节/秒(Byte/s)。电脑中1字节=8位,因此100兆的光纤速度等于12.5MB/s(即100Mbps/s除以8)。有很多人把网络的速度单位也理解为字节/秒(Byte/s),所以感觉好像是运营商没有给他分配足额的带宽。这也只能是理论值,实际应用中还会受到诸多的影响,电磁,电脑,服务器,网络堵塞等,一般来说只能达到理论值的七成至八成,有些的网卡能达到九成。ADSL目前最大只有10M的传输量,光纤则没有这种限制,光纤和宽带其实是两个不同的概念,光纤接入是以光脉冲的形式来传输信号,以玻璃或有机玻璃等为网络传输介质。是一种传输介质,就像双绞线,粗缆,细缆等,只是他的传输速度要比普通的介质快得多,可以达到每秒种千兆以上。而我们所说的宽带是对我们上网的速度来说的,拨号上网的速率就从14.4Kbps上升到了56Kbps,然而受限于电话线路的品质,56Kbps应该是一般Modem 的极限了。要想获得更快的上网速度,势必得另劈溪径,因此主流的光纤接入方式慢慢出现。光纤接入是指局端与用户之间完全以光纤作为传输媒体。光纤接入可以分为有源光接入和无源光接入。光纤用户网的主要技术是光波传输技术。目前光纤传输的复用技术发展相当快,多数已处于实用化。复用技术用得最多的有时分复用(TDM)、波分复用(WDM)、频分复用(FDM)、码分复用(CDM)等。根据光纤深入用户的程度,可分为FTTC、FTTZ、FTTO、FTTB、FTTH等。光纤通信不同于有线电通信,后者是利用金属媒体传输信号,光纤通信则是利用透明的光纤传输光波。虽然光和电都是电磁波,但频率范围相差很大。一般通信电缆最高使用频率约为9~24兆赫(10(6)Hz),光纤工作频率在10(14)~10(15)Hz之间。随着社会的发展和进步,光纤接入方式已经取代了过去的ADSL和其他方式成为现如今的主流接入方式,只有光纤独有的高速独享带宽才可以满足企业和各个单位的各种需要。

最后简单粗暴的回答就是:办理宽带的所说的100兆带宽,这个在网络上来说是速率,也就是100Mbps。正常我们电脑上限速的都是字节byte,而不是速率,所以有个换算关系。1Byte=8bps也就是100Mbps的实际下载速度能达到100Mb/8=12.5MB这个就是理论值。

回答2:

您好
是的,电信100M光纤宽带的网速一般在100M左右,您可以登陆电信网上营业厅查看您办理的宽带带宽及下载速度等。

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