Found it. BTW, 4594 also refers to it, I just didn’t find it there either.
https://tools.ietf.org/html/rfc3662 3662 A Lower Effort Per-Domain Behavior (PDB) for Differentiated Services. R. Bless, K. Nichols, K. Wehrle. December 2003. (Format: TXT=39029 bytes) (Status: INFORMATIONAL) Either a Class Selector (CS) PHB [RFC2474], an Experimental/Local Use (EXP/LU) PHB [RFC2474], or an Assured Forwarding (AF) PHB [RFC2597] may be used as the PHB for the LE traffic aggregate. This document does not specify the exact DSCP to use inside a domain, but instead specifies the necessary properties of the PHB selected by the DSCP. If a CS PHB is used, Class Selector 1 (DSCP=001000) is suggested. > On May 12, 2015, at 11:42 PM, [email protected] wrote: > > Form my side, I think Scavenger support is still a topic worth trying to > take forward, and it does compliment AQM. > > The recent discussion of DiffServ interconnection classes and practice in > tsvwg at Dallas also touched on this topic. It is a topic that could > easily be discussed again at a tsvwg meeting, if there was interest. > > Gorry > >> >>> On May 12, 2015, at 9:06 PM, Simon Barber <[email protected]> wrote: >>> >>> Where would be the best place to see if it would be possible to get >>> agreement on a global low priority DSCP? >> >> Iâ?Td suggest >> >> https://tools.ietf.org/html/rfc4594 >> 4594 Configuration Guidelines for DiffServ Service Classes. J. >> Babiarz, K. Chan, F. Baker. August 2006. (Format: TXT=144044 bytes) >> (Updated by RFC5865) (Status: INFORMATIONAL) >> >> It refers to >> >> [QBSS] "QBone Scavenger Service (QBSS) Definition", Internet2 >> Technical Report Proposed Service Definition, March 2001. >> >> (http://mgoutell.free.fr/gridftp/QBSS/qbss-definition.txt) and states that >> >>> Within QBone, traffic marked with DSCP 001000 (binary) shall be >>> considered in the QBSS class and should be given the service described >>> in this document. Notice that while DSCP values generally have only >>> local significance we are assigning global significance to this >>> particular codepoint within QBone. We refer to packets marked >>> with DSCP 001000 as being marked with the "QBSS code pointâ?. >> >> >> Thatâ?Ts where we came up with recommending CS1 (001000) for the traffic >> class. >> >> Iâ?Tm pretty sure the latter ultimately resulted in an RFC, but for some >> reason Iâ?Tm not finding it. The closest thing I see is >> >> https://tools.ietf.org/html/rfc6297 >> 6297 A Survey of Lower-than-Best-Effort Transport Protocols. M. Welzl, >> D. Ros. June 2011. (Format: TXT=46532 bytes) (Status: INFORMATIONAL) >> _______________________________________________ >> aqm mailing list >> [email protected] >> https://www.ietf.org/mailman/listinfo/aqm >> > >
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