It can be stupid answer but try limiting traffic on br0. Also try using htb with tc filter. W dniu 9.07.2023 o 14:24, Nayan Gadre pisze:
Hi Experts, I have a wireless router having the client facing interface wlan0 and the wired gateway facing interface eth0 under a bridge br0. / # brctl show bridge name bridge id STP enabled interfaces br0 8000.bce67c4d8fb0 no eth0 wlan0 client get IP 192.168.0.105, and server (connected via eth0) has IP 192.168.0.10. On server I run "iperf3 -s -p 5678 -V" On client I run "iperf3 -c 192.168.0.10 -p5678 -i1 -tinf" All works fine. Now I want to rate limit the traffic going from wlan0 to eth0 to 5000kbits/sec. I tried to apply a classless qdisc to eth0 port as well as wlan0 port. # tc qdisc add dev eth0 root tbf rate 5000kbit latency 50ms burst 15k # tc qdisc add dev wlan0 root tbf rate 5000kbit latency 50ms burst 15k However, the qdisc does not take effect. iperf3 -c 192.168.0.10 -p5678 -i1 -tinf Connecting to host 192.168.0.10, port 5678 [ 5] local 192.168.0.105 port 43384 connected to 192.168.0.10 port 5678 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 10.7 MBytes 89.6 Mbits/sec 0 526 KBytes [ 5] 1.00-2.00 sec 8.95 MBytes 75.1 Mbits/sec 0 560 KBytes [ 5] 2.00-3.00 sec 9.13 MBytes 76.6 Mbits/sec 0 619 KBytes / # tc -s qdisc qdisc tbf 8005: dev eth0 root refcnt 5 rate 5Mbit burst 15Kb lat 50ms Sent 221305 bytes 469 pkt (dropped 157, overlimits 288 requeues 0) backlog 0b 0p requeues 0 qdisc tbf 8006: dev wlan16 root refcnt 5 rate 5Mbit burst 15Kb lat 50ms Sent 7095 bytes 109 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 My kernel is 4.4.60, and I checked that qdisc gets activated in the egress path after dev_queue_xmit() is called. And for a bridged port, the path taken by the packet coming to wlan0 is __br_deliver -> br_forward_finish -> br_dev_queue_push_xmit -> dev_queue_xmit. So the qdisc should have taken effect even in the bridged case. I see statistics for eth0 qdisc. What am I missing in the tc rule ? If I apply the same rule on the server and client interfaces then I can see rate limiting taking effect. But on the wireless router linux bridge it's not working. Thanks N Gadre
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