Re: Can't get the ingress policer to work

[Sebastian Arcus <shop@open-t.co.uk>]

Thanks for replying. I am not familiar with the ifb interface. I will 
look it up and see if I can make sense of things.



On 09/05/13 10:18, Faysal Banna wrote:
> Good Day Sir.
>
> Why don't you use ifb and mirred towards ifb0 or ifb1 and thus you can
> rate limit ingress traffic easy.
>
> Much Regards
> *Faysal Banna*
> _Chief Section Surface Observation_
> _Meteorological Department_
> _Civil Aviation_
> _Rafic Harriri International Airport_
> _Beirut Lebanon_
> _Mobile : +961-3-258043_
> _Tel : +961-1-628000 EXT: 2000_
> __
> On 05/09/2013 11:57 AM, Sebastian Arcus wrote:
>> I'm trying to limit the bandwidth on the ingress leg of my Internet
>> connection. I'm using the code from lartc.org:
>>
>>
>> tc qdisc add dev eth0 handle ffff: ingress
>>
>> tc filter add dev eth0 parent ffff: protocol ip prio 50 \
>>     u32 match ip src 0.0.0.0/0 police rate 500kbit \
>>     burst 10k drop flowid :1
>>
>>
>> I've tried rates of 1Mbit, 10Mbit, 100Mbit. I've tried bursts of 1k,
>> 10k, 100k, 1000k. Nothing seems to make any difference. The test
>> download starts at about 20Mbytes/second - then keeps on slowing down
>> and stalling intermittently all the way down to 6kbytes/second. Then
>> it bobs up and down, stalling all the time, between 5kbytes/second and
>> 17kbytes/second. There seems to be absolutely no relation between the
>> rate I set and the resulting download rate.
>>
>> I'm testing on two VM's. With no traffic shaping on, I get about 36
>> megabytes/second clean speed between the two vms. Kernel on both sides
>> is 3.8.4. I'm only applying traffic shaping on one of the vm's.
>>
>> Any suggestions would be much appreciated. I ran out of ideas so far.
>> I've reread the tc-htb man page, searched google on the ingress queue
>> - but can't see what am I missing.
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>


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