Subject: RFC 3140 and l2tp diffserv

From: [email-masked]
Date: Fri, 13 Jul 2001 10:17:12 -0400

RFC 2836 which defines Differentiated Services
PHBIDs has been replaced by RFC 3140, which
contains the following changes:

(1) The oversight that prevented use of the Class
Selector codepoints (xxx000, correspond to IP
Precedence) has been corrected, and an explicit
note has been added to say that the PHBIDs
formed from these codepoints can be used to
signal IP Precedence for networks that
don't implement the full diffserv architecture.
See Section 3 of RFC 3140.

(2) The first paragraph of Section 10 of the
l2tp diffserv draft essentially says "use of
this diffserv signaling SHOULD NOT cause packet
reordering within any microflow".  That seemed
like such a good idea that it was added to
RFC 3140 and strengthened to say "MUST NOT"
(last paragraph of Section 2 of RFC 3140).

Both of these changes grew out of work on
the l2tp diffserv draft, so I'd like to thank
everyone who helped, and hope that the result
is useful to l2tp.

Thanks,
--David

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David L. Black, Senior Technologist
EMC Corporation, 42 South St., Hopkinton, MA  01748
+1 (508) 435-1000 x75140     FAX: +1 (508) 497-8500
[email-masked]       Mobile: +1 (978) 394-7754
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