[27537] in North American Network Operators' Group
Re: TOS history?
daemon@ATHENA.MIT.EDU (William Allen Simpson)
Tue Feb 22 08:40:17 2000
Message-ID: <38B265A1.774EF51C@greendragon.com>
Date: Tue, 22 Feb 2000 05:32:26 -0500
From: William Allen Simpson <wsimpson@greendragon.com>
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To: Dana Hudes <dhudes@panix.com>
Cc: nanog@merit.edu
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Dana Hudes wrote:
>
> Was this something actually supported in the Internet? Widely? any examples of who?
> Around when did it stop being supported?
> Did anyone ever actually support RFC1349 in a host or router?
>
Yes, on the half-dozen or so routers that I worked on, the low delay bit
was supported. This was especially important for dial-up links.
(NetBlazer, Lan'sEnd, etc., none of which are in much use today.)
I have also _set_ the low delay bit for telnet traffic on those boxen,
but you don't telnet out of routers very often.
I'd have to check the source, but I'm pretty sure I put at least some
of that stuff in Qualcomm/Sony cell phones and base stations, so it
might still be in use today.
I have also used the TOS bits in a weighted fair queuing scheme.
I never figured out how "high reliability" would be implemented. I just
tried to never have low reliability. :-)
WSimpson@UMich.edu
Key fingerprint = 17 40 5E 67 15 6F 31 26 DD 0D B9 9B 6A 15 2C 32
