Hello, I have been trying to get RED with ECN working on 2.6.x kernel for a few weeks now without any positive results. My setup is as follows
A 2.6.15 kernel running on a linux box configured as a router. I used the following command to add/replace the existing default qdisc of the NIC tc qdisc replace dev eth3 root red limit 7000 min 1600 max 3500 avpkt 1000 burst 3 probability 0.5 bandwidth 512 ecn I am able to verify with "tc -s -d qdisc" that the RED qdisc does get attached to my outgoing interface, eth3. With such low values, I was expecting a lot of packets being marked ECN style i.e. ip.ce = 1. However, the statistics show no packet being marked or dropped. I inserted printk statements in sch_red.c to print the computed average queue length and the backlog. Both parameters are 0 for the entire flow. This makes me wonder whether there is something wrong that I have been doing (most likely) or is there something wrong in the code. Any advice/help will be very helpfull. Please CC me in replies as I am not subscribed to the mailing list. Thanks, Rahul. - 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
