Tc is used to configure Traffic Control in the Linux kernel.

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Are dropped packages in traffic control really dropped?

While having a slight timeout problem in my network (the router needed some rest, so that's solved) I found myself trying to decipher tc -s output, after noticing that the "dropped" values represented ...
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161 views

Bandwidth throttling per user group

I am wondering if it is possible to create a bandwidth shaping/throttling script that shapes traffic based on user group. That is, if user1, user2, are in user group group1, they will have 1mb/s ...
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Queuing disciplines are per-interface, what happen with interfaces using same device?

I have read about queuing disciplines here http://lartc.org/. I understand that for instance band 0 of pfifo policy is prioritized over band 2 within same qdisc, but what happen when i have ppp0 and ...
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205 views

Traffic shaping with tc does not work

I want to limit the outgoing traffic to a specific bandwidth. My Code: tc qdisc add dev vif1.0 root handle 1: htb default 30 tc class add dev vif1.0 parent 1: classid 1:1 htb rate 1mbit tc class add ...
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131 views

How to fairly share bandwidth between IPs with tc?

I have a linux router (d-link 320-nru) with tc installed. I have some users' computers to fairly share bandwidth between them. Also there is such complication as inconstant uplink bandwidth. How can ...
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13 views

No traffic tc class at bridge interface

I make bridge interface like this [root@]# brctl show bridge name bridge id STP enabled interfaces br67 8000.002655e38b20 no eth6 eth7 ...
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26 views

Traffic Control user permission

My users need to emulate packet loss on RTP video streams to achieve visual effects. We are in a artistic environment and don't worry about security. The application works only as super user. I ...
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32 views

How to limit network bandwidth after some data transferred?

So the question is in the name of topic. How to limit bandwidth I know. Using tc. But how to do so after, for example, traffic had reached 500MB. And after some time reset the limits.
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77 views

Failing to apply tc filter

I've run the example at ifb both con Centos and on Fedora tc filter add dev eth0 parent 1: protocol ip prio 10 u32 match ip src 192.168.200.200/32 flowid 1:2 action police rate 10kbit burst 90k ...
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29 views

Simple QoS configuration with PRIO Qdisc is not working

Im using Ubuntu 12.10 OS and i want to prioritize ICMP traffic over any other traffic in the egress queue of eth0 interface (as it is my default route to internet). By default this is the qdisc ...
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125 views

prioritize traffic for some bridge interfaces using prio qdisc

Im configuring my router to give preference to some WAN interfaces. This interfaces are named ppp0 (PPP interface), vc2 (RFC1483 bridge interface) and vc3 (RFC1483 bridge interface). I had understood ...
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188 views

Limit internet speed without tc

I'm using deb based linux for years and I never had problems limiting the internet speed using wondershaper. The problem is that on sisters PC I had to install puppy linux because it's a very old PC. ...