tc qdisc add dev eth0 root sfq perturb 10 I want to set perturb to 8 then i used this tc qdisc add dev eth0 root sfq perturb 8 system give me the following message RTNETLINK file exists I delete the rule by this :"tc qdisc del dev eth0 root sfq perturb 10" please tell me how can i delete the rule by another way and where is "RTNETLINK file" _________________________________________________________ Do You Yahoo!? 摊开你的掌心 让我看看你 http://sweepstakes.yahoo.com/2002cnuser