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I am trying to limit the bandwidth of an interface inside a namespace using tc without much success. Seems it's not supported according to https://lists.linux-foundation.org/pipermail/containers/2009-September/020473.html

This is on CentOS 6.5. What's weird is when I use the tutorial outlind here it works normally: http://gigawhitlocks.com/2014/08/18/network-namespaces.html So it must be something special that's happening to this port created by Openstack inside the namespace. The port that's not working is a port serving as gateway for a virtual router inside openstack.

Edit2: Some more info about the interface which doesn't work with tc:
ip netns exec qrouter-6a080f37.. ethtool -S qr-a9b3962f-d4
no stats available

Edit: Seems somebody else is encountering the same problem with ports created by openvswitch in a namespace http://openvswitch.org/pipermail/discuss/2014-May/013925.html

The following command just fails with RTNETLINK answers: Invalid argument:

# ip netns exec qrouter-6a080f37-4da0-4646-ad36-062b748d15be tc qdisc add dev qr-a9b3962f-d4 root netem loss 30%

RTNETLINK answers: Invalid argument

[root@node-1 ~]# ip netns exec qrouter-6a080f37-4da0-4646-ad36-062b748d15be ip a

43: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN 

    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

    inet 127.0.0.1/8 scope host lo

    inet6 ::1/128 scope host 

       valid_lft forever preferred_lft forever

44: qg-4bda7108-d2: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN 

    link/ether fa:16:3e:95:cc:7b brd ff:ff:ff:ff:ff:ff

    inet 119.81.159.206/27 brd 119.81.159.223 scope global qg-4bda7108-d2

    inet 119.81.159.207/32 brd 119.81.159.207 scope global qg-4bda7108-d2

    inet 119.81.159.209/32 brd 119.81.159.209 scope global qg-4bda7108-d2

    inet6 fe80::f816:3eff:fe95:cc7b/64 scope link 

       valid_lft forever preferred_lft forever

47: qr-a9b3962f-d4: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN 

    link/ether fa:16:3e:c2:64:dd brd ff:ff:ff:ff:ff:ff

    inet 192.168.99.1/24 brd 192.168.99.255 scope global qr-a9b3962f-d4

    inet6 fe80::f816:3eff:fec2:64dd/64 scope link 

       valid_lft forever preferred_lft forever

# ip netns exec qrouter-6a080f37-4da0-4646-ad36-062b748d15be tc qdisc add dev qr-a9b3962f-d4 root tbf rate 1mbit burst 10kb limit 100kb

RTNETLINK answers: Invalid argument

linux networking ip tc namespace

share|improve this question

edited Jan 7 '15 at 2:53

Sam Stoelinga

asked Jan 6 '15 at 5:06

Sam StoelingaSam Stoelinga

15622 gold badges22 silver badges88 bronze badges

bumped to the homepage by Community♦ 54 mins ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

add a comment | 

2

I am trying to limit the bandwidth of an interface inside a namespace using tc without much success. Seems it's not supported according to https://lists.linux-foundation.org/pipermail/containers/2009-September/020473.html

This is on CentOS 6.5. What's weird is when I use the tutorial outlind here it works normally: http://gigawhitlocks.com/2014/08/18/network-namespaces.html So it must be something special that's happening to this port created by Openstack inside the namespace. The port that's not working is a port serving as gateway for a virtual router inside openstack.

Edit2: Some more info about the interface which doesn't work with tc:
ip netns exec qrouter-6a080f37.. ethtool -S qr-a9b3962f-d4
no stats available

Edit: Seems somebody else is encountering the same problem with ports created by openvswitch in a namespace http://openvswitch.org/pipermail/discuss/2014-May/013925.html

The following command just fails with RTNETLINK answers: Invalid argument:

# ip netns exec qrouter-6a080f37-4da0-4646-ad36-062b748d15be tc qdisc add dev qr-a9b3962f-d4 root netem loss 30%

RTNETLINK answers: Invalid argument

[root@node-1 ~]# ip netns exec qrouter-6a080f37-4da0-4646-ad36-062b748d15be ip a

43: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN 

    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

    inet 127.0.0.1/8 scope host lo

    inet6 ::1/128 scope host 

       valid_lft forever preferred_lft forever

44: qg-4bda7108-d2: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN 

    link/ether fa:16:3e:95:cc:7b brd ff:ff:ff:ff:ff:ff

    inet 119.81.159.206/27 brd 119.81.159.223 scope global qg-4bda7108-d2

    inet 119.81.159.207/32 brd 119.81.159.207 scope global qg-4bda7108-d2

    inet 119.81.159.209/32 brd 119.81.159.209 scope global qg-4bda7108-d2

    inet6 fe80::f816:3eff:fe95:cc7b/64 scope link 

       valid_lft forever preferred_lft forever

47: qr-a9b3962f-d4: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN 

    link/ether fa:16:3e:c2:64:dd brd ff:ff:ff:ff:ff:ff

    inet 192.168.99.1/24 brd 192.168.99.255 scope global qr-a9b3962f-d4

    inet6 fe80::f816:3eff:fec2:64dd/64 scope link 

       valid_lft forever preferred_lft forever

# ip netns exec qrouter-6a080f37-4da0-4646-ad36-062b748d15be tc qdisc add dev qr-a9b3962f-d4 root tbf rate 1mbit burst 10kb limit 100kb

RTNETLINK answers: Invalid argument

linux networking ip tc namespace

share|improve this question

edited Jan 7 '15 at 2:53

Sam Stoelinga

asked Jan 6 '15 at 5:06

Sam StoelingaSam Stoelinga

15622 gold badges22 silver badges88 bronze badges

bumped to the homepage by Community♦ 54 mins ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

add a comment | 

I am trying to limit the bandwidth of an interface inside a namespace using tc without much success. Seems it's not supported according to https://lists.linux-foundation.org/pipermail/containers/2009-September/020473.html

This is on CentOS 6.5. What's weird is when I use the tutorial outlind here it works normally: http://gigawhitlocks.com/2014/08/18/network-namespaces.html So it must be something special that's happening to this port created by Openstack inside the namespace. The port that's not working is a port serving as gateway for a virtual router inside openstack.

Edit2: Some more info about the interface which doesn't work with tc:
ip netns exec qrouter-6a080f37.. ethtool -S qr-a9b3962f-d4
no stats available

Edit: Seems somebody else is encountering the same problem with ports created by openvswitch in a namespace http://openvswitch.org/pipermail/discuss/2014-May/013925.html

The following command just fails with RTNETLINK answers: Invalid argument:

# ip netns exec qrouter-6a080f37-4da0-4646-ad36-062b748d15be tc qdisc add dev qr-a9b3962f-d4 root netem loss 30%

RTNETLINK answers: Invalid argument

[root@node-1 ~]# ip netns exec qrouter-6a080f37-4da0-4646-ad36-062b748d15be ip a

43: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN 

    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

    inet 127.0.0.1/8 scope host lo

    inet6 ::1/128 scope host 

       valid_lft forever preferred_lft forever

44: qg-4bda7108-d2: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN 

    link/ether fa:16:3e:95:cc:7b brd ff:ff:ff:ff:ff:ff

    inet 119.81.159.206/27 brd 119.81.159.223 scope global qg-4bda7108-d2

    inet 119.81.159.207/32 brd 119.81.159.207 scope global qg-4bda7108-d2

    inet 119.81.159.209/32 brd 119.81.159.209 scope global qg-4bda7108-d2

    inet6 fe80::f816:3eff:fe95:cc7b/64 scope link 

       valid_lft forever preferred_lft forever

47: qr-a9b3962f-d4: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN 

    link/ether fa:16:3e:c2:64:dd brd ff:ff:ff:ff:ff:ff

    inet 192.168.99.1/24 brd 192.168.99.255 scope global qr-a9b3962f-d4

    inet6 fe80::f816:3eff:fec2:64dd/64 scope link 

       valid_lft forever preferred_lft forever

# ip netns exec qrouter-6a080f37-4da0-4646-ad36-062b748d15be tc qdisc add dev qr-a9b3962f-d4 root tbf rate 1mbit burst 10kb limit 100kb

RTNETLINK answers: Invalid argument

linux networking ip tc namespace

share|improve this question

edited Jan 7 '15 at 2:53

Sam Stoelinga

asked Jan 6 '15 at 5:06

Sam StoelingaSam Stoelinga

15622 gold badges22 silver badges88 bronze badges

# ip netns exec qrouter-6a080f37-4da0-4646-ad36-062b748d15be tc qdisc add dev qr-a9b3962f-d4 root netem loss 30%

RTNETLINK answers: Invalid argument

[root@node-1 ~]# ip netns exec qrouter-6a080f37-4da0-4646-ad36-062b748d15be ip a

43: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN 

    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

    inet 127.0.0.1/8 scope host lo

    inet6 ::1/128 scope host 

       valid_lft forever preferred_lft forever

44: qg-4bda7108-d2: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN 

    link/ether fa:16:3e:95:cc:7b brd ff:ff:ff:ff:ff:ff

    inet 119.81.159.206/27 brd 119.81.159.223 scope global qg-4bda7108-d2

    inet 119.81.159.207/32 brd 119.81.159.207 scope global qg-4bda7108-d2

    inet 119.81.159.209/32 brd 119.81.159.209 scope global qg-4bda7108-d2

    inet6 fe80::f816:3eff:fe95:cc7b/64 scope link 

       valid_lft forever preferred_lft forever

47: qr-a9b3962f-d4: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN 

    link/ether fa:16:3e:c2:64:dd brd ff:ff:ff:ff:ff:ff

    inet 192.168.99.1/24 brd 192.168.99.255 scope global qr-a9b3962f-d4

    inet6 fe80::f816:3eff:fec2:64dd/64 scope link 

       valid_lft forever preferred_lft forever

# ip netns exec qrouter-6a080f37-4da0-4646-ad36-062b748d15be tc qdisc add dev qr-a9b3962f-d4 root tbf rate 1mbit burst 10kb limit 100kb

RTNETLINK answers: Invalid argument

share|improve this question

edited Jan 7 '15 at 2:53

Sam Stoelinga

asked Jan 6 '15 at 5:06

Sam StoelingaSam Stoelinga

15622 gold badges22 silver badges88 bronze badges

share|improve this question

edited Jan 7 '15 at 2:53

Sam Stoelinga

asked Jan 6 '15 at 5:06

Sam StoelingaSam Stoelinga

15622 gold badges22 silver badges88 bronze badges

asked Jan 6 '15 at 5:06

Sam StoelingaSam Stoelinga

15622 gold badges22 silver badges88 bronze badges

asked Jan 6 '15 at 5:06

Sam StoelingaSam Stoelinga

15622 gold badges22 silver badges88 bronze badges

1 Answer
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I met the similar problem. It does not report error as your qdisc command did when I add qdisc to the internal qr- port, however the traffic just wouldn't be throttled and went at line rate all the time. Googled a while and can not find solution. An ugly way to throttle traffic is to use iptable's limit module, which is impossible to get stable rate on tcp flow, and hard to translate the limit argument to actual bandwidth.

share|improve this answer

answered Oct 12 '15 at 9:27

yanyan

1

add a comment | 

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0

I met the similar problem. It does not report error as your qdisc command did when I add qdisc to the internal qr- port, however the traffic just wouldn't be throttled and went at line rate all the time. Googled a while and can not find solution. An ugly way to throttle traffic is to use iptable's limit module, which is impossible to get stable rate on tcp flow, and hard to translate the limit argument to actual bandwidth.

share|improve this answer

answered Oct 12 '15 at 9:27

yanyan

1

add a comment | 

0

I met the similar problem. It does not report error as your qdisc command did when I add qdisc to the internal qr- port, however the traffic just wouldn't be throttled and went at line rate all the time. Googled a while and can not find solution. An ugly way to throttle traffic is to use iptable's limit module, which is impossible to get stable rate on tcp flow, and hard to translate the limit argument to actual bandwidth.

share|improve this answer

answered Oct 12 '15 at 9:27

yanyan

1

add a comment | 

I met the similar problem. It does not report error as your qdisc command did when I add qdisc to the internal qr- port, however the traffic just wouldn't be throttled and went at line rate all the time. Googled a while and can not find solution. An ugly way to throttle traffic is to use iptable's limit module, which is impossible to get stable rate on tcp flow, and hard to translate the limit argument to actual bandwidth.

share|improve this answer

answered Oct 12 '15 at 9:27

yanyan

1

share|improve this answer

answered Oct 12 '15 at 9:27

yanyan

1

answered Oct 12 '15 at 9:27

yanyan

1

answered Oct 12 '15 at 9:27

yanyan

1