For realtime scheduling we use KURT which stands for Kansas University Real Time. http://www.ittc.ku.edu/kurt/ For packet generation we use Netspec which allow us to generate tcp/udp traffic, set TOS values etc. http://www.ittc.ku.edu/netspec/ For giving these packets the highest priority, i guess u could use diffserv tc commands, or am i misunderstanding your question here ? ciao, Amit On Mon, 9 Jul 2001, Akshay Adhikari wrote: > Hello, > > I am working on the problem appearing below, and I was > wondering if there is an "off the shelf" solution to > it - something which wouldnt require too much > writing/modification of the kernel code. > > >From a linux router, I need to be able to generate a > periodic stream of packets in as real time a manner as > possible. > The router is diffserv capable, and there might be an > arbitrary nesting of traffic classes at the outgoing > device. > > Independent of the other traffic, the router should > generate the periodic flow, so it doesnt help to just > call dev_queue_xmit periodically. I need to ensure > that the packet does go out as soon as the period is > over. > > Is there an easy way to do this? (off the shelf) - > like somehow classifying the internally generated > packets > as the highest priority in a sched_prio Qdisc and > calling dev_queue_xmit periodically? > > Or an easier way? > > tia, > akshay -- ^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^ Amit Kucheria EECS Grad. Research Assistant Team Niehaus || Room # 245E University of Kansas @ Lawrence (R)+1-(785)-830 8521 ||| (O)+1-(785)-864 7774 ____________________________________________________ - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org
