On Tue, 20 Aug 2002, Amit Kucheria wrote: > On Fri, 16 Aug 2002, Stef Coene wrote: > > >> The 'ceil' parameter allows us to implement a part of the 'isolated' > >> definition above. By setting it equal to 'rate', the class does not > >> borrow bandwidth, but what will stop other classes from borrowing its > >> unused bandwidth? > > > > Providing no ceil parameter means rate = ceil. But this can not be > > used to implement isolated like in cbq. Rate = ceil means the class > > can not use more bandwidth then it's rate. Isolated in cbq means other > > classes can not borrow bandwidth from the class and that's not the > > same. There is no way you can implement isolated with htb. > > > > But with htb you can do something like this : > > > > Total : 100 > > class1 rate 20 ceil 20 > > class2 rate 40 ceil 80 > > class3 rate 40 ceil 80 > > > > class 1 is isolated like in cbq. It can not use more then it's > > rate/ceil and class2 and class3 will never use bandwidth from class1, > > only from each other. Just like the definition of isolated :) > > What happens when there is no traffic in class 1? Will class 2 and 3 > share class 1's bandwidth then? > > The reason I am asking these questions is because I am trying to see if > HTB can be used in place of CBQ in Diffserv. Has anybody tried something > like this? It works fine for me, although I haven't used CBQ previously so I can't comapre them. It just works for me, except the delays in interactive class are too long, even when the prio is 0 (highest) and the rate and ceil are maximum. Maybe CBQ is better in reducing the delays... Anybody solved this problem? -- ########################################## # | p0wer | # # __ | GG#1877248 | # # (oo) | p0wer@bojko.eu.org | # # / \/ \ Go away or I will replace you # # `V__V' with a very small shell script. # ########################################## _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
