Carmelo Cascone wrote:
Hi all, I have a problem in configuring tc-sfq along with tc-flow. I would like to hash packets not using the UDP/TCP 5-tuple (default beahvior of tc-sfq), but simply the pair <ipsrc, ipdst>. I’m having hard time using tc-flow and finding help on the web, as such I decided to drop an email to this list. The commands and error I get are: $ tc qdisc add dev eth6 root handle 1: sfq $ tc filter add dev eth6 parent 1:0 protocol ip prio 1 flow hash keys src,dst perturb 30 divisor 1024 RTNETLINK answers: Invalid argument We have an error talking to the kernel I’m issuing these commands on a Debian 9 with a kernel v4.9.16 Please note that the tc filter command is the same used in the tc-sfq documentation. What am I doing wrong? What is the invalid argument?
Looking through many years old Qos folder I found a file with an example. I don't know why it's not documented, but but adding handle 1 to the filter command makes your example work for me, in the sense that it's not rejected - didn't test further. Historically I would have said putting sfq on root of an eth wouldn't do much, but with BQLs maybe things have changed. -- To unsubscribe from this list: send the line "unsubscribe lartc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
