Hi, > On 10 Mar 2015, at 08:28, LOCHIN Emmanuel <[email protected]> wrote: > > Hi all, > > Reading section "12.4 Packet sizes and congestion notification", I'm > wondering whether this should also apply to pure ack traffic? >
For this specific section, for the sake of consistency between the IETF documents, we refer to the “draft-ietf-aqm-recommendation“ document [ https://datatracker.ietf.org/doc/draft-ietf-aqm-recommendation/ ], where it is said: 1- in section "4.4 - AQM algorithms SHOULD respond to measured congestion, not application profiles." “ Procedures for selecting packets to mark/drop SHOULD observe the actual or projected time that a packet is in a queue (bytes at a rate being an analog to time). When an AQM algorithm decides whether to drop (or mark) a packet, it is RECOMMENDED that the size of the particular packet should not be taken into account [RFC7141]. " 2- in section "4.5. AQM algorithms SHOULD NOT be dependent on specific transport protocol behaviours" “ AQM methods should be opaque to the choice of transport and application. " IMHO, these two points infer that this would be applied for pure ack traffic as well. If changes need to be done on that aspect, it should be on the “draft-ietf-aqm-recommendation“ document. Whatever happens, the “characterisation guidelines" document should be consistent with the “recommendation document”, and now that you mention this section, I am not sure that a discussion on the packet sizes is needed in the “characterisation guidelines” document. What do you think ? Kind regards, Nicolas > EL > > -- > > > Emmanuel LOCHIN > Professeur ISAE > ISAE SUPAERO - Institut Supérieur de l'Aéronautique et de l'Espace > 10 avenue Edouard Belin - BP 54032 - 31055 TOULOUSE CEDEX 4 FRANCE - > http://www.isae-supaero.fr <http://www.isae-supaero.fr/> > Tel +33 5 61 33 91 85 - Fax (+33) 5 61 33 83 30 > Plan d'accès/Access map <http://plan.univ-toulouse.fr/#783> - Page > personnelle <http://personnel.isae.fr/emmanuel-lochin>
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