中華電信反擊「佔頻寬大戶」 嚴重超量恐 - 手機討論
By Lucy
at 2019-11-19T17:45
at 2019-11-19T17:45
Table of Contents
其實4G網路壅塞問題,並不是流量大戶造成的,
這說法有點像是倖存者偏誤,
因為大流量的用戶能下載量這麼大,也是網路順暢的時段才能達成,
這些用戶沒有影響正常使用者的流量。
真正塞車的時段,是大家都在刷FB、聊LINE、轉貼照片影片的時段,
也就是台灣常見的晚上8~12點之間,
有巨量用戶同時在使用的時候,
每個人的頻寬就被分的很小,
以我在郊區住宅區用台哥大的經驗,
跑 speedtest 晚上只剩 Download 1M / Upload 20M
一般使用者開一個一般網頁大概會建立 10 個 socket,
用電腦開FB網頁有20個 socket,而且有些是 keep connection。
多幾個分頁就是佔多少倍資源。
而大流量用戶看一個 4K netflix 電影,同時的 socket 只有 2~5 個。
而這些連線的權重假設一樣,
以瞬間流量來說反而是一般使用者佔用最大量的網路資源。
所以大流量用戶只用少量 socket,
網路不繁忙的時候下載東西,
網路繁忙時段被其他用量排擠,
然後要被怪罪成網路不順的兇手?
主因還是頻寬不足,
中華電信900/1800/2600/2100加起來180Mhz,
假設 180 人同時用每人分 1M,
我家住宅區方圓1km就至少5000人了,怎麼分?
看一些官方數據好了
https://reurl.cc/1Q8QlG
"完美"均攤的情況下,中華電信每人 0.134Mhz 的頻寬,46.18人共享一個基地台,
所以集合住宅區就死定了,幾千人共享一個基地台...
4G的技術限制就到這裡,多塞更多用戶就是一起死而已。
電信想用大流量用戶來獵巫只是搪塞一下抗議網路不順的的嘴,
不管切幾百GB幾TB要多收錢,結果都一樣頻寬繼續不夠而已。
所以我是不贊成這個合約異動,
相反應該要求電信公司,有多少用戶就要提供足夠量的基地台才對。
--
這說法有點像是倖存者偏誤,
因為大流量的用戶能下載量這麼大,也是網路順暢的時段才能達成,
這些用戶沒有影響正常使用者的流量。
真正塞車的時段,是大家都在刷FB、聊LINE、轉貼照片影片的時段,
也就是台灣常見的晚上8~12點之間,
有巨量用戶同時在使用的時候,
每個人的頻寬就被分的很小,
以我在郊區住宅區用台哥大的經驗,
跑 speedtest 晚上只剩 Download 1M / Upload 20M
一般使用者開一個一般網頁大概會建立 10 個 socket,
用電腦開FB網頁有20個 socket,而且有些是 keep connection。
多幾個分頁就是佔多少倍資源。
而大流量用戶看一個 4K netflix 電影,同時的 socket 只有 2~5 個。
而這些連線的權重假設一樣,
以瞬間流量來說反而是一般使用者佔用最大量的網路資源。
所以大流量用戶只用少量 socket,
網路不繁忙的時候下載東西,
網路繁忙時段被其他用量排擠,
然後要被怪罪成網路不順的兇手?
主因還是頻寬不足,
中華電信900/1800/2600/2100加起來180Mhz,
假設 180 人同時用每人分 1M,
我家住宅區方圓1km就至少5000人了,怎麼分?
看一些官方數據好了
https://reurl.cc/1Q8QlG
"完美"均攤的情況下,中華電信每人 0.134Mhz 的頻寬,46.18人共享一個基地台,
所以集合住宅區就死定了,幾千人共享一個基地台...
4G的技術限制就到這裡,多塞更多用戶就是一起死而已。
電信想用大流量用戶來獵巫只是搪塞一下抗議網路不順的的嘴,
不管切幾百GB幾TB要多收錢,結果都一樣頻寬繼續不夠而已。
所以我是不贊成這個合約異動,
相反應該要求電信公司,有多少用戶就要提供足夠量的基地台才對。
--
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