On Thu, Dec 06, 2001 at 11:14:01PM +0100, Patrick Nagelschmidt wrote: > This configuration limits webserver traffic to 5mbit and smtp traffic to 3 mbit, and limits the sum to 5mbit: > [...] > # tc class add dev eth0 parent 1:1 classid 10: cbq bandwidth 100Mbit \ > rate 5Mbit weight 0.5Mbit prio 5 allot 1514 cell 8 maxburst 20 \ > avpkt 1000 bounded > > the above leads to an Invalid argument. it seems that tc doesnt like the > classid 10: (at least the error disappears if i change it to e.g. 1:2). TC likes it just fine. It is the kernel that doesn't. This is my mistake, I decided to spruce up the examples a bit without testing them afterwards. > have i done something wrong or is it an error in the example? this problem Can you check if the CBQ example does work not? > leads me also to the next question: is the naming of classes essential for > building them correctly? is parent 1:1 classid 10:0 somehow different from > parent 1:1 classid 1:2? up to now i thought classid was only a name and > the parent would be enough to make the classes' positions in the tree > unambiguously... Well, major numbers are a bit special in this respect. There is some stuff going on with userspace per-socket specified PRIOs helping classify traffic, the kernel does a lot of testing if you remain within your major number. This is one of the completely never ever mentioned parts of CBQ which I hope to bug people about. Added you to the Thanks To list, thanks! -- http://www.PowerDNS.com Versatile DNS Software & Services Trilab The Technology People Netherlabs BV / Rent-a-Nerd.nl - Nerd Available - 'SYN! .. SYN|ACK! .. ACK!' - the mating call of the internet
