> > Sorry for the late response: could this be an "aliasing" issue caused > > by sampling intervals (granularity)? > > > > I was, in fact, an error in my ruleset. I had put the 'linklayer atm' at > both the branch and leaf levels, so the overhead was computed twice, > creating those holes in the bandwidth. I am seeing similar behaviour with my setup. Am I making the same mistake? A subset of my rules is as follows: tc qdisc add dev ppp0 root handle 1: htb r2q 1 tc class add dev ppp0 parent 1: classid 1:1 htb \ rate ${DOWNLINK}kbit ceil ${DOWNLINK}kbit \ overhead $overhead linklayer atm <------- Here tc class add dev ppp0 parent 1:1 classid 1:10 htb \ rate 612kbit ceil 612kbit prio 0 \ overhead $overhead linklayer atm <------- And here tc qdisc add dev ppp0 parent 1:10 handle 4210: \ sfq perturb 10 limit 50 tc filter add dev ppp0 parent 1:0 protocol ip \ prio 10 handle 10 fw flowid 1:10 Thanks, Andy -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html