On Mon, 29 Jun 2015, Sebastian Moeller wrote:
Ah, I see, you are still using tc’s stab mechanism for account of
per packet overhead and link layer adjustments instead of cake’s (you
need to check the advanced options check box in the link layer
adjustments tab, and then select “cake” as the lnk layer adjustment
mechanism).
Ok, so when I changed "stab" to cake, I get the following, but it still
only shapes one way. If I change to discipline to "fq_codel" or "pie" I
get bidirectonal shaping with otherwise same settings.
root@OpenWrt:~# cat /etc/config/sqm
config queue 'eth1'
option interface 'eth0'
option qdisc_advanced '1'
option squash_dscp '0'
option squash_ingress '0'
option ingress_ecn 'ECN'
option egress_ecn 'ECN'
option qdisc_really_really_advanced '0'
option download '50000'
option upload '50000'
option linklayer 'ethernet'
option overhead '42'
option linklayer_advanced '1'
option tcMTU '2047'
option tcTSIZE '128'
option tcMPU '0'
option linklayer_adaptation_mechanism 'cake'
option enabled '1'
option qdisc 'cake'
option script 'simple.qos'
root@OpenWrt:~# tc -d qdisc
qdisc cake 8002: dev eth0 root refcnt 9 bandwidth 50Mbit diffserv4 flows
noatm overhead 42
qdisc ingress ffff: dev eth0 parent ffff:fff1 ----------------
qdisc mq 0: dev eth1 root
qdisc fq_codel 0: dev eth1 parent :1 limit 1024p flows 1024 quantum 300
target 5.0ms interval 100.0ms ecn
qdisc fq_codel 0: dev eth1 parent :2 limit 1024p flows 1024 quantum 300
target 5.0ms interval 100.0ms ecn
qdisc fq_codel 0: dev eth1 parent :3 limit 1024p flows 1024 quantum 300
target 5.0ms interval 100.0ms ecn
qdisc fq_codel 0: dev eth1 parent :4 limit 1024p flows 1024 quantum 300
target 5.0ms interval 100.0ms ecn
qdisc fq_codel 0: dev eth1 parent :5 limit 1024p flows 1024 quantum 300
target 5.0ms interval 100.0ms ecn
qdisc fq_codel 0: dev eth1 parent :6 limit 1024p flows 1024 quantum 300
target 5.0ms interval 100.0ms ecn
qdisc fq_codel 0: dev eth1 parent :7 limit 1024p flows 1024 quantum 300
target 5.0ms interval 100.0ms ecn
qdisc fq_codel 0: dev eth1 parent :8 limit 1024p flows 1024 quantum 300
target 5.0ms interval 100.0ms ecn
qdisc fq_codel 0: dev ifb4eth0 root refcnt 2 limit 1024p flows 1024
quantum 300 target 5.0ms interval 100.0ms ecn
root@OpenWrt:~# tc -d class show dev eth0
class cake 8002:4e1 parent 8002:
class cake 8002:b89 parent 8002:
root@OpenWrt:~# tc -d class show dev ifb4eth0
class fq_codel :12c parent none
class fq_codel :222 parent none
root@OpenWrt:~# /etc/init.d/sqm restart
SQM: Trying to start/stop SQM on all interfaces.
SQM: /usr/lib/sqm/run.sh Stopping SQM on interface: eth0
SQM: ifb associated with interface eth0:
SQM: trying to create new IFB: ifb4eth0
RTNETLINK answers: File exists
SQM: /usr/lib/sqm/stop.sh: Stopping eth0
SQM: ifb associated with interface eth0:
SQM: /usr/lib/sqm/run.sh Queue Setup Script: /usr/lib/sqm/simple.qos
+ . /usr/lib/sqm/functions.sh
+ [ -z 50000 ]
+ [ -z 50000 ]
+ [ -z eth0 ]
+ [ -z cake ]
+ [ -z cake ]
+ [ -z ethernet ]
+ [ -z 42 ]
+ [ -z 2047 ]
+ [ -z 0 ]
+ [ -z 128 ]
+ [ -z ]
+ AUTOFLOW=0
+ [ -z ]
+ LIMIT=1001
+ [ -z ]
+ ILIMIT=
+ [ -z ]
+ ELIMIT=
+ [ -z ]
+ ITARGET=
+ [ -z ]
+ ETARGET=
+ [ -z ECN ]
+ [ -z ECN ]
+ [ -z 0 ]
+ [ -z 0 ]
+ [ -z ]
+ IQDISC_OPTS=
+ [ -z ]
+ EQDISC_OPTS=
+ [ -z ]
+ which tc
+ TC=/usr/sbin/tc
+ [ -z ]
+ which ip
+ IP=/usr/sbin/ip
+ [ -z ]
+ which insmod
+ INSMOD=/usr/sbin/insmod
+ [ -z ]
+ TARGET=5ms
+ [ -z ]
+ IPT_MASK=0xff
+ [ -z ]
+ IPT_MASK_STRING=/0xff
+ [ -z ]
+ get_ifb_for_if eth0
+ CUR_IF=eth0
+ get_ifb_associated_with_if eth0
+ CUR_IF=eth0
+ tc+ -p filtergrep -o -e ifb[^)]\+
show parent ffff: dev eth0
+ CUR_IFB=
+ sqm_logger ifb associated with interface eth0:
+ logger -t SQM -s ifb associated with interface eth0:
SQM: ifb associated with interface eth0:
+ echo
+ CUR_IFB=
+ [ -z ]
+ create_new_ifb_for_if eth0
+ CUR_IF=eth0
+ MAX_IF_NAME_LENGTH=15
+ IFB_PREFIX=ifb4
+ NEW_IFB=ifb4eth0
+ IFB_NAME_LENGTH=8
+ [ 8 -gt 15 ]
+ sqm_logger trying to create new IFB: ifb4eth0
+ logger -t SQM -s trying to create new IFB: ifb4eth0
SQM: trying to create new IFB: ifb4eth0
+ /usr/sbin/ip link add name ifb4eth0 type ifb
RTNETLINK answers: File exists
+ echo ifb4eth0
+ CUR_IFB=ifb4eth0
+ [ -z ifb4eth0 ]
+ echo ifb4eth0
+ DEV=ifb4eth0
+ do_modules
+ insmod act_ipt
+ lsmod+ grep
-q ^act_ipt
+ insmod sch_cake
+ + grep -q ^sch_cake
lsmod
+ insmod sch_ingress
+ + greplsmod
-q ^sch_ingress
+ insmod act_mirred
+ + greplsmod -q ^act_mirred
+ insmod cls_fw
+ + grep -q ^cls_fw
lsmod
+ insmod sch_htb
+ + lsmodgrep -q ^sch_htb
+ ipt_setup
+ ipt -t mangle -N QOS_MARK_eth0
+ echo -t mangle -N QOS_MARK_eth0
+ sed s/-A/-D/g
+ d=-t mangle -N QOS_MARK_eth0
+ [ -t mangle -N QOS_MARK_eth0 != -t mangle -N QOS_MARK_eth0 ]
+ echo -t mangle -N QOS_MARK_eth0
+ sed s/-I/-D/g
+ d=-t mangle -N QOS_MARK_eth0
+ [ -t mangle -N QOS_MARK_eth0 != -t mangle -N QOS_MARK_eth0 ]
+ iptables -t mangle -N QOS_MARK_eth0
+ ip6tables -t mangle -N QOS_MARK_eth0
+ sqm_logger cake does all the diffserv work - no need for iptables rules
+ logger -t SQM -s cake
SQM: cake
+ [ 0 = 1 ]
+ sqm_logger Keeping differentiated services code points (DSCP) from
ingress.
+ logger -t SQM -s Keeping differentiated services code points (DSCP) from
ingress.
SQM: Keeping differentiated services code points (DSCP) from ingress.
+ CAKE_OPTS=
+ ipt -t mangle -A PREROUTING -i eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ echo+ sed s/-A/-D/g
-t mangle -A PREROUTING -i eth0 -m mark --mark 0x00/0xff -g QOS_MARK_eth0
+ d=-t mangle -D PREROUTING -i eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ [ -t mangle -D PREROUTING -i eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0 != -t mangle -A PREROUTING -i eth0 -m mark --mark 0x00/0xff
-g QOS_MARK_eth0 ]
+ iptables -t mangle -D PREROUTING -i eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ ip6tables -t mangle -D PREROUTING -i eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ echo+ sed s/-I/-D/g
-t mangle -A PREROUTING -i eth0 -m mark --mark 0x00/0xff -g QOS_MARK_eth0
+ d=-t mangle -A PREROUTING -i eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ [ -t mangle -A PREROUTING -i eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0 != -t mangle -A PREROUTING -i eth0 -m mark --mark 0x00/0xff
-g QOS_MARK_eth0 ]
+ iptables -t mangle -A PREROUTING -i eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ ip6tables -t mangle -A PREROUTING -i eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ ipt -t mangle -A POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ echo+ sed s/-A/-D/g
-t mangle -A POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ d=-t mangle -D POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ [ -t mangle -D POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0 != -t mangle -A POSTROUTING -o eth0 -m mark --mark 0x00/0xff
-g QOS_MARK_eth0 ]
+ iptables -t mangle -D POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ ip6tables -t mangle -D POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ echo+ sed s/-I/-D/g
-t mangle -A POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ d=-t mangle -A POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ [ -t mangle -A POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0 != -t mangle -A POSTROUTING -o eth0 -m mark --mark 0x00/0xff
-g QOS_MARK_eth0 ]
+ iptables -t mangle -A POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ ip6tables -t mangle -A POSTROUTING -o eth0 -m mark --mark 0x00/0xff -g
QOS_MARK_eth0
+ ipt -t mangle -I PREROUTING -i vtun+ -p tcp -j MARK --set-mark 0x2/0xff
+ echo+ sed s/-A/-D/g
-t mangle -I PREROUTING -i vtun+ -p tcp -j MARK --set-mark 0x2/0xff
+ d=-t mangle -I PREROUTING -i vtun+ -p tcp -j MARK --set-mark 0x2/0xff
+ [ -t mangle -I PREROUTING -i vtun+ -p tcp -j MARK --set-mark 0x2/0xff !=
-t mangle -I PREROUTING -i vtun+ -p tcp -j MARK --set-mark 0x2/0xff ]
+ echo+ sed s/-I/-D/g
-t mangle -I PREROUTING -i vtun+ -p tcp -j MARK --set-mark 0x2/0xff
+ d=-t mangle -D PREROUTING -i vtun+ -p tcp -j MARK --set-mark 0x2/0xff
+ [ -t mangle -D PREROUTING -i vtun+ -p tcp -j MARK --set-mark 0x2/0xff !=
-t mangle -I PREROUTING -i vtun+ -p tcp -j MARK --set-mark 0x2/0xff ]
+ iptables -t mangle -D PREROUTING -i vtun+ -p tcp -j MARK --set-mark
0x2/0xff
+ ip6tables -t mangle -D PREROUTING -i vtun+ -p tcp -j MARK --set-mark
0x2/0xff
+ iptables -t mangle -I PREROUTING -i vtun+ -p tcp -j MARK --set-mark
0x2/0xff
+ ip6tables -t mangle -I PREROUTING -i vtun+ -p tcp -j MARK --set-mark
0x2/0xff
+ ipt -t mangle -A OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42
+ echo+ sed s/-A/-D/g
-t mangle -A OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42
+ d=-t mangle -D OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42
+ [ -t mangle -D OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42 != -t mangle -A OUTPUT -p udp -m multiport --ports
123,53 -j DSCP --set-dscp-class AF42 ]
+ iptables -t mangle -D OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42
+ ip6tables -t mangle -D OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42
+ echo+ sed s/-I/-D/g
-t mangle -A OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42
+ d=-t mangle -A OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42
+ [ -t mangle -A OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42 != -t mangle -A OUTPUT -p udp -m multiport --ports
123,53 -j DSCP --set-dscp-class AF42 ]
+ iptables -t mangle -A OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42
+ ip6tables -t mangle -A OUTPUT -p udp -m multiport --ports 123,53 -j DSCP
--set-dscp-class AF42
+ [ 50000 -ne 0 ]
+ egress
+ CEIL=50000
+ expr 50000 / 3
+ PRIO_RATE=16666
+ expr 50000 / 6
+ BE_RATE=8333
+ expr 50000 / 6
+ BK_RATE=8333
+ expr 50000 - 16
+ BE_CEIL=49984
+ get_mtu eth0 50000
+ BW=50000
+ cat /sys/class/net/eth0/mtu
+ F=1500
+ [ -z 1500 ]
+ [ 50000 -gt 20000 ]
+ F=3000
+ [ 50000 -gt 30000 ]
+ F=6000
+ [ 50000 -gt 40000 ]
+ F=12000
+ [ 50000 -gt 50000 ]
+ [ 50000 -gt 60000 ]
+ [ 50000 -gt 80000 ]
+ echo 12000
+ LQ=quantum 12000
+ /usr/sbin/tc qdisc del dev eth0 root
+ get_stab_string
+ STABSTRING=
+ [ cake = tc_stab -a ethernet != none ]
+ echo
+ get_cake_lla_string
+ STABSTRING=
+ [ cake = cake -a ethernet != none ]
+ [ ethernet = atm ]
+ STABSTRING= overhead 42
+ sqm_logger cake link layer adjustments: overhead 42
+ logger -t SQM -s cake link layer adjustments: overhead 42
SQM: cake link layer adjustments: overhead 42
+ sqm_logger SQM: overhead 42
+ logger -t SQM -s SQM: overhead 42
SQM: SQM: overhead 42
+ echo overhead 42
+ /usr/sbin/tc qdisc add dev eth0 root cake bandwidth 50000kbit overhead
42
+ sqm_logger egress shaping activated
+ logger -t SQM -s egress shaping activated
SQM: egress shaping activated
+ [ 50000 -ne 0 ]
+ ingress
+ CEIL=50000
+ expr 50000 / 3
+ PRIO_RATE=16666
+ expr 50000 / 6
+ BE_RATE=8333
+ expr 50000 / 6
+ BK_RATE=8333
+ expr 50000 - 16
+ BE_CEIL=49984
+ get_mtu eth0 50000
+ BW=50000
+ cat /sys/class/net/eth0/mtu
+ F=1500
+ [ -z 1500 ]
+ [ 50000 -gt 20000 ]
+ F=3000
+ [ 50000 -gt 30000 ]
+ F=6000
+ [ 50000 -gt 40000 ]
+ F=12000
+ e 50000 -gt 50000 ]
+ [ 50000 -gt 60000 ]
+ [ 50000 -gt 80000 ]
+ echo 12000
+ LQ=quantum 12000
+ /usr/sbin/tc qdisc del dev eth0 handle ffff: ingress
+ /usr/sbin/tc qdisc add dev eth0 handle ffff: ingress
+ /usr/sbin/tc qdisc del dev ifb4eth0 root
+ [ 0 = 1 ]
+ sqm_logger Perform DSCP based filtering on ingress. (3-tier
classification)
+ logger -t SQM -s Perform DSCP based filtering on ingress. (3-tier
classification)
SQM: Perform DSCP based filtering on ingress. (3-tier classification)
+ get_stab_string
+ STABSTRING=
+ [ cake = tc_stab -a ethernet != none ]
+ echo
+ get_cake_lla_string
+ STABSTRING=
+ [ cake = cake -a ethernet != none ]
+ [ ethernet = atm ]
+ STABSTRING= overhead 42
+ sqm_logger cake link layer adjustments: overhead 42
+ logger -t SQM -s cake link layer adjustments: overhead 42
SQM: cake link layer adjustments: overhead 42
+ sqm_logger SQM: overhead 42
+ logger -t SQM -s SQM: overhead 42
SQM: SQM: overhead 42
+ echo overhead 42
+ /usr/sbin/tc qdisc add dev eth0 root cake bandwidth 50000kbit overhead
42
RTNETLINK answers: File exists
+ ifconfig ifb4eth0 up
+ /usr/sbin/tc filter add dev eth0 parent ffff: protocol all prio 10 u32
match u32 0 0 flowid 1:1 action mirred egress redirect dev ifb4eth0
+ sqm_logger ingress shaping activated
+ logger -t SQM -s ingress shaping activated
SQM: ingress shaping activated
--
Mikael Abrahamsson email: [email protected]
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