Hi Sebastian,
the ISP is Comcast in MD, USA, residential connection. It is a cable
connection (i.e. the WAN port on the modem is a coaxial one) and not a
DSL one. Maximum ingress rate is ~450kbytes/s which is what the modem
syncs at. By using "test_WAN_dual-isolate__piece_of_cake.qos", "tc -d
qdisc show" reports (enp0s13 is WAN, enp0s14 is LAN):
-------8<--------
qdisc noqueue 0: dev lo root refcnt 2
qdisc fq_codel 0: dev enp0s14 root refcnt 2 limit 10240p flows 1024
quantum 1514 target 5.0ms interval 100.0ms ecn
qdisc cake 8002: dev enp0s13 root refcnt 2 bandwidth 900Kbit besteffort
dual-srchost nat rtt 100.0ms raw
qdisc ingress ffff: dev enp0s13 parent ffff:fff1 ----------------
qdisc fq_codel 0: dev ifb0 root refcnt 2 limit 10240p flows 1024
quantum 1514 target 5.0ms interval 100.0ms ecn
qdisc cake 8003: dev ifb4enp0s13 root refcnt 2 bandwidth 3300Kbit
besteffort dual-dsthost nat rtt 100.0ms raw
-------8<--------
If one of the hosts on LAN is running bittorrent, bmon on the gateway
reports:
RX bps RXpps TX bps TXpps
enp0s14 23.55KiB 303 402.87KiB 322
enp0s13 457.26KiB 369 25.04KiB 307
Setting the ingress rate at 1900kbps (instead of 3300kbps as above),
"tc -d qdisc show" reports:
-------8<--------
qdisc noqueue 0: dev lo root refcnt 2
qdisc fq_codel 0: dev enp0s14 root refcnt 2 limit 10240p flows 1024
quantum 1514 target 5.0ms interval 100.0ms ecn
qdisc cake 8008: dev enp0s13 root refcnt 2 bandwidth 900Kbit besteffort
dual-srchost nat rtt 100.0ms raw
qdisc ingress ffff: dev enp0s13 parent ffff:fff1 ----------------
qdisc fq_codel 0: dev ifb0 root refcnt 2 limit 10240p flows 1024
quantum 1514 target 5.0ms interval 100.0ms ecn
qdisc cake 8009: dev ifb4enp0s13 root refcnt 2 bandwidth 1900Kbit
besteffort dual-dsthost nat rtt 100.0ms raw
-------8<--------
Using bittorrent, bmon on the gateway reports:
RX bps RXpps TX bps
TXpps
enp0s14 19.25KiB 219 232.51KiB 184
enp0s13 393.36KiB 304 20.25KiB 220
In both cases the ingress rate limit on the WAN interface (enp0s13) is
not obeyed. I verified these data by using tcpdump and doing an IO-
Graph with wireshark.
Looking forward to your feedback,
George
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