On Wed, 9 Jun 2004, vincent-perrier wrote: > Le mer 09/06/2004 à 22:42, Bill Denney a écrit : > > I'd like to implement something like SFQ, but with a cap of a rate per > > flow. Essentially, I'd like to be able to limit citrix connections to > > 30KBps without having an overall traffic flow cap for all citrix > > connections. > > This could be a case for the HTB qdisc if you have a way to identify the > citrix connections (ip, port, or any other field you know), here is an > example of a config that limits 1 tcp connection of port source 22D0: > > tc qdisc add dev eth0 root handle 1: htb > tc filter add dev eth0 parent 1:0 protocol all u32 match u32 0x0 0x0 at > 0 flowid 1:1 > tc class add dev eth0 parent 1:0 classid 1:1 htb rate 5000Kbit > tc class add dev eth0 parent 1:1 classid 1:8 htb rate 240Kbit > tc filter add dev eth0 parent 1:1 protocol all u32 match u32 0x00000800 > 0x0000FFFF at -4 match u32 0x00060000 0x00FF0000 at 8 match u32 > 0x22D00000 0xFFFF0000 at 20 flowid 1:8 > > The u32 filter permits to match any field of the frame, in the config > above, 800 is for IP 06 is for TCP and 22D0 is the source port, this > flow won't go above 240Kbit. I may be reading this incorrectly, but as I read it, this seems to limit all connections where 22D0 is the source port to the 240Kbit. (I hope that I am reading it incorrectly.) > The problem is that may be you cannot know in advance the ports or ip > numbers of your connections, in that case I don't know what could help > you. Perhaps I can explain it a bit better: I have client machines (an unknown number of them) connecting to a certain ip address (i.e. 10.1.1.20) at a known port (1494). I'd like for each machine that connects to get 30Kbps. If there are 5 machines connecting, and 3 are idle (no bandwidth being used), I'd like the two active machines to still only have 30Kbps each. Thanks, Bill -- "The great tragedy of science -- the slaying of a beautiful hypothesis by an ugly fact." -- Thomas Huxley _______________________________________________ LARTC mailing list / LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
