Hi all, I've upgraded my router to OpenWRT Breaker Barrier r41163 which has kernel 3.10.36 in it. I was pleased to see that codel appears (to my very newbie eyes) to be default on what should be the "fast->slow" (where bufferbloat happens) interfaces:
qdisc fq_codel 0: dev eth0 root refcnt 2 limit 1024p flows 1024 quantum 300 target 5.0ms interval 100.0ms ecn qdisc mq 0: dev wlan1 root qdisc mq 0: dev wlan0 root qdisc fq_codel 0: dev pppoe-wan1 root refcnt 2 limit 1024p flows 1024 quantum 300 target 5.0ms interval 100.0ms ecn qdisc fq_codel 0: dev tun0 root refcnt 2 limit 1024p flows 1024 quantum 300 target 5.0ms interval 100.0ms ecn So first thing to notice is that this router has two WAN interfaces but only one of them (pppoe-wan1) has had codel applied. The other WAN interface (eth0.2) is not even listed. So off I go to experiment with the WAN interface that does have codel applied... So I do the saturate-and-ping test through pppoe-wan1 and ping times go from ~12ms to ~1200ms, while saturating the upstream so clearly codel is not working there. What am I doing wrong? Cheers, b.
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