On 09-01-2007 17:08, [EMAIL PROTECTED] wrote: > Hello, > > I have been trying to get the RED qdisc and ECN to work for the past few weeks > and all my experiments have failed. Here is the setup I am using. > > Src -- R1 -- R2 -- Dst > > Between Src and R1 is a 100Mbps link and between R1 and R2 a 10Mbps link. I > set up > the qdisc at R1 as follows > > tc qdisc add dev eth3 root handle 1: prio > tc qdisc add dev eth3 parent 1:1 handle 10: sfq > tc qdisc add dev eth3 parent 1:2 handle 20: sfq > tc qdisc add dev eth3 parent 1:3 handle 30: red limit 10000 min 3000 max 5000 > avpkt 1000 burst 5 probability 0.5 bandwidth 256kbit ecn > > I also inserted printk statments inside the code to print the calculate queue > average (RED param), the > backlog (Qdisc param) and the queue length (sk_buff_head param). I also > inserted print statements for > each action of RED i.e. DONT_MARK, PROB_MARK, HARD_MARK and DROP. > > For the purpose of my experiments, I transferred a 25 MB file. I also did 100 > simultaneous TCP > transfers for 2 mins using ipref. In all cases none of the packets were > either marked or dropped by the > RED code. This was verified by the print statements in the logs. For all > runs, qavg and backlog were 0 > and qlen was 1. > > I have even tried classless red and got same results. Does anyone know > whether RED+ECN work ? Any > tests and setups that someone has used and got successful results ? I would > really appreciate any input > or suggestions on this.
Hi, Did you try with lartc.org list? And probably there could be more details, like: - where is eth3 - tc -s -d qdisc show dev eth3 (before and after the transfer) - kernel and iproute versions Regards, Jarek P. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
