nanog mailing list archives
Re: Long-haul 100Mbps EPL circuit throughput issue
From: William Herrin <bill () herrin us>
Date: Thu, 5 Nov 2015 23:40:22 -0500
On Thu, Nov 5, 2015 at 9:17 PM, Pablo Lucena <plucena () coopergeneral com> wrote:
With default window size of 64KB, and a delay of 75 msec, you should only get around 7Mbps of throughput with TCP.
Hi Pablo, Modern TCPs support and typically use window scaling (RFC 1323). You may not notice it in packet dumps because the window scaling option is negotiated once for the connection, not repeated in every packet. Regards, Bill Herrin -- William Herrin ................ herrin () dirtside com bill () herrin us Owner, Dirtside Systems ......... Web: <http://www.dirtside.com/>
Current thread:
- Long-haul 100Mbps EPL circuit throughput issue Eric Dugas (Nov 05)
- Re: Long-haul 100Mbps EPL circuit throughput issue alvin nanog (Nov 05)
- Re: Long-haul 100Mbps EPL circuit throughput issue Greg Foletta (Nov 05)
- Re: Long-haul 100Mbps EPL circuit throughput issue Bob Evans (Nov 05)
- Re: Long-haul 100Mbps EPL circuit throughput issue Pablo Lucena (Nov 05)
- Re: Long-haul 100Mbps EPL circuit throughput issue Pablo Lucena (Nov 05)
- Re: Long-haul 100Mbps EPL circuit throughput issue Theodore Baschak (Nov 05)
- Re: Long-haul 100Mbps EPL circuit throughput issue William Herrin (Nov 05)
- Re: Long-haul 100Mbps EPL circuit throughput issue Pablo Lucena (Nov 05)
- Re: Long-haul 100Mbps EPL circuit throughput issue Pablo Lucena (Nov 05)
- Re: Long-haul 100Mbps EPL circuit throughput issue alvin nanog (Nov 05)