nanog mailing list archives

Re: Best utilizing fat long pipes and large file transfer


From: "Robert E. Seastrom" <rs () seastrom com>
Date: Mon, 16 Jun 2008 07:22:02 -0400


Glen Turner <gdt () gdt id au> 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,

-r




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