Best utilizing fat long pipes and large file transfer

Robert E. Seastrom rs at
Mon Jun 16 06:22:02 CDT 2008

Glen Turner <gdt at> writes:

> Fedora 8 and 9 and Ubuntu 8.04 include the upstream OpenSSH which include
> large window patches.  OpenSSH 4.7 ChangeLog contains:
>> Other changes, new functionality and fixes in this release:
> ...
>>  * The SSH channel window size has been increased, and both ssh(1)
>>    sshd(8) now send window updates more aggressively. These improves
>>    performance on high-BDP (Bandwidth Delay Product) networks.

Turns out that the Mac does too.  Haven't checked FreeBSD 7 yet, but
6.x is definitely lagging.

Thanks for the clue,


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