Quoting Francesco Zampognaro <zampognaro@xxxxxxxxxxxxxxx>:
Hi everybody, it is my first message here. I tried to browse throughout
older posts but I found no immediate answer.
I need to change rate of a tbf queue while ip packets are already
enqueued by it. If I go:
tc qdisc replace|change|link dev eth0 root tbf rate 180kbit burst 1540
limit 15400
as results all enqueued packets seems to disappear. I can see that from a:
tc -s qdisc ls dev eth0
where backlog suddenly goes down to zero packets. Iperf performances
also confirm that. Using custom kernel 2.6.20.1 on Ubuntu 6.06.
Where can I look to understand what is going on? Can I do something
else to get the same result (shaping outgoing traffic dynamically and
very often without losses)?
Thanks in advance!
____________________________________
Francesco
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Hi,
I solved for now passing packets in userspace using ip_queue (iptables
... -j QUEUE) and processing them so that the they go out respecting
the rate which varies over time, without losses.
Still open to find a better solution in the kernel.
Regards!
____________________________________
Francesco
____________________________________
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