[LARTC] Re: tc n00b

[Jonathan Gazeley <jonathan.gazeley@bristol.ac.uk>]

Hi Nikolay,

Thanks very much for your help - the script is now working. The downlink 
shaping works as expected, but the uplink shaping seems to give 4 times 
more bandwidth than it ought to - so I've just divided the number by 4 
and it is satisfactory.

However, I've now discovered that pings from one of my shaped NAT 
clients, to another LAN machine that usually take <1ms, now take ~3500ms 
when I am using the bandwidth. How can I avoid these enormous queues?

I have cc'd the list in case anyone else has an idea. Have a good 
weekend everyone!

Cheers,
Jonathan

------------------------
Jonathan Gazeley
Wireless & VPN Team
Information Systems & Computing
University of Bristol
------------------------



Nikolay Kichukov wrote:
> Hey,
> sorry for delay. I had some issues with my primary
> internet connection and had to change the primary mail
> host as well.
>
> I looked at the script.
>
> Looks totally fine to me.
>
> If you are not sure where exactly the problem lies,
> try adding ONLY the ingress rules. Test it, see if it
> works. Then tweak if needed the script you sent to me.
>
> tc qdisc add dev $LAN ingress handle ffff:
> tc filter add dev eth0 parent ffff: protocol ip prio 2
> u32 match ip src IPHERE police rate ${UPLINK}kbit
> burst 16kb drop flowid ffff:
>
> Cheers,
> -Nik
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