Hi Andy, I´m not sure if I understood what you told about arp packets. I use htb default but the problem occurs even when the default queue rate is low (it is almost always low in rate and pps). The attached files are: Rc.local - criation of the basic queues including default Regras.inc - criation of each queue when the user login Queues - statistics of the basic queues Thanks for help, Luciano -----Mensagem original----- De: Andy Furniss [mailto:andy.furniss@xxxxxxxxxxxxx] Enviada em: segunda-feira, 24 de abril de 2006 20:33 Para: Luciano Cc: lartc@xxxxxxxxxxxxxxx; Jader@xxxxxxxxxx Assunto: Re: Backlog with less rate than defined Luciano wrote: > Hi all, > > I setup a Linux machine to act as Lan Authentication server. So, the > same script that redirect the http connection to a login web page, it > create some queues to limit traffic, login by login. > > The PC uses only 1 ethernet interface that receive the packets source > routed to it and forward/nat to the external gateway using the same > interface. > > For each login I create a queue like that: > > tc class add dev '.$if_externa.' parent 1:1 classid 1:'.$filaDown.' htb > rate '.$banda_down.'kbit ceil '.$banda_down.'kbit prio 1' > tc filter add dev $if_externa protocol ip parent 1:0 prio 1 handle > ::$filaDown u32 match ip dst $ipcliente/32 flowid 1:$filaDown > > My problem is that most of the queues created does NOT get full rate as > defined. I can see the packets entering backlog with much less rate than > defined, ex: > > class htb 1:b1 parent 1:1 prio 1 rate 256Kbit ceil 256Kbit burst 1926b > cburst 1926b > Sent 6644151 bytes 5435 pkts (dropped 0, overlimits 0) > rate 669bps backlog 107p Htb rate average can be quite long and misleading. I would tcpdump and see whether the rate looks OK with that. If not see what the dequeue behaviour is - you don't show all your rules, if you are using htb default class on root and shaping eth remember arp will get delayed there unless you filter it elsewhere. Andy.
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