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Long-haul 100Mbps EPL circuit throughput issue
- Subject: Long-haul 100Mbps EPL circuit throughput issue
- From: plucena at coopergeneral.com (Pablo Lucena)
- Date: Thu, 5 Nov 2015 21:18:38 -0500
- In-reply-to: <CAH+2GVLSUYMo-XGdQc1knYEq1hA13=NOQf4jP=2fiNFMQoC5aw@mail.gmail.com>
- References: <CALKrK4na=wKSi=vf4EgPetoXJxaHTxfGt8HXYr6CE+xPk1Vy4g@mail.gmail.com> <[email protected]> <CAH+2GVLSUYMo-XGdQc1knYEq1hA13=NOQf4jP=2fiNFMQoC5aw@mail.gmail.com>
> With default window size of 64KB, and a delay of 75 msec, you should only
> get around 7Mbps of throughput with TCP.
>
> You would need a window size of about 1MB in order to fill up the 100 Mbps
> link.
>
> 1/0.75 = 13.333 (how many RTTs in a second)
> 13.333 * 65535 * 8 = 6,990,225.24 (about 7Mbps)
>
> You would need to increase the window to 1,048,560 KB, in order to get
> around 100Mbps.
>
> 13.333 * 1,048,560 * 8 = 111,843,603.84 (about 100 Mbps)
>
>>
>>
>>
>
?I realized I made a typo:
1/*0.075* = 13.333
not
1/0.75 = 13.333
?