Francesco Zampognaro
2007-11-19 22:23:45 UTC
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
____________________________________
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
____________________________________