On 10/28/2014 02:38 AM, Glen Turner wrote: > I would have thought that it should be the system program which brings > up the interface which should set the queuing behaviour. Neither the > kernel nor systems know the intent of the use of the interface, and > thus if CoDel, FIFO, or other AQM is appropriate. > > Consider an ethernet interface, all using the same physical hardware: > > - enterprise LAN interface -- CoDel > > - ADSL link with PPP over ethernet -- ppp0 should run Codel, eth0 > should run a short prioritised FIFO. > > - data centre LAN interface -- hierarchical queuing with a high > priority, random drop queue for control plane traffic (LACP, spanning > tree, etc) and CoDel for other traffic. > > Intent is vital in setting the correct AQM for each interface. The > program which configures interfaces (NetworkManager, systemd-networkd, > ...) is where intent is best known. Sure. NM, networkd, etc. may want to configure qdiscs per-interface. Setting default_qdisc does not conflict with that. Michal _______________________________________________ kernel mailing list kernel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/kernel
