From mboxrd@z Thu Jan 1 00:00:00 1970 From: jamal Date: Sat, 08 Dec 2001 20:43:05 +0000 Subject: [LARTC] Re: further CBQ/tc documentation ds9a.nl/lartc/manpages Message-Id: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lartc@vger.kernel.org For starters, i think you need a defintions sections. Look at: http://www.ietf.org/internet-drafts/draft-ietf-diffserv-model-06.txt (eg what is a shaper etc and how trhings are placed together). At least that will ensure that you dont sday things like "Prio cant shape". It is a good model but may be insufficient given Linux TCs capabilities. Email me when unsure. Some other things: - In your comment "Do not confuse this classless simple qdisc with the classful PRIO one!". This is misleading: the default 3 band FIFO queue is conceptually the same as the default prio qdisc (the priomaps are identical). 3 bands; same prioritization schemes. - You really need to fix ingress section: it works for both forwarding and packets coming in to local sockets. More importantly, It takes advantages of _all_ filter schemes available for TC as well as the policing functionality (which sadly seemed to have been replicated by someone in netfilter, wrongly if i may add ;->). - You keep saying "reodering" -- dont know what that means. Reordering is generally considered a Bad Thing(tm). - your description of the "peakrate" (same in TBF as well as policing) Well captured. It took ages to get this into peoples heads. This also applies to CBQ. - your description of "MTU" Not very good description: This is just what it literally says; maximum transmit unit; A packet larger than this will be dropped. Default is 2K. For ethernet, MTUs of 1500 bytes, this is fine; however, you should put a cautionary statement here in regards to people having MTUs smaller than 2K (example the lo device); they might find that all their packets greater than 2K being dropped. More later if dont get distracted. cheers, jamal _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://ds9a.nl/lartc/