tc for delay and shaping
 

hi,

i am relatively new to linux so bear with me..

I am looking to set up or emulate various permutations of WAN link, bandwidth/ latency etc for application performance testing..

Would like to use TBF shapers coupled with fixed latency...

I know there are two separate tc commands i can use to achieve each requirement individually

tc qdisc add dev eth0 root netem delay 50ms

tc qdisc replace dev eth2 root tbf rate 8mbit burst 12500 limit 12500

problem is one over-writes the other...

I want to combine both...

I design Networks so am used to doing this from a Vendor point of view but not in linux. I basically want a parent shaper, no child clases effectively a FIFO shaped queue with a fixed latency...

Can someone advise if this is possible?

Thanks in advance,RM.