nanog mailing list archives

Re: Important New Requirement for IPv4 Requests


From: Jo Rhett <jrhett () netconsonance com>
Date: Thu, 23 Apr 2009 23:21:16 -0700

On Apr 21, 2009, at 6:50 PM, bmanning () vacation karoshi com wrote:
FTP?  Who uses FTP these days?  Certainly not consumers.  Even Cisco

        well, pretty much anyone who has large datasets to move around.
        that default 64k buffer in the openssl libs pretty much sucks
        rocks for large data flows.


Large data sets? So you are saying that 512-byte packets with no windowing work better? Bill, have you measured this?

Time to download a 100mb file over HTTP and a 100mb interface: 20 seconds. Time to download a 100mb file over FTP and a 100mb interface: ~7 minutes.

And yes, that was FreeBSD with the old version openssl library that shipped with 6.3.

--
Jo Rhett
Net Consonance : consonant endings by net philanthropy, open source and other randomness





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