equal bandwidth shaping how to

i have pipe to internet 512 kbps. then i want share to 4 site, ratio 1:4, when bandwidth full i want each site got equal banwidth at 128kbps CIR. i have read manual and suggest to used pcq method, please sharing.

Yes, probably PCQ queues will be the best option for you.
If you want to divide equally traffic between 4 sites.

i have made queue type like this :
name=“pcq-download-512” kind=pcq pcq-rate=512000 pcq-limit=50
pcq-classifier=dst-address pcq-total-limit=512000

but i still not understand about pcq-rate,pcq-limit,pcq-total-limit used for, is there some can explain more about it.

hajid,
explanation is here
You will find configuration example in the bottom of the given documentation (you wii have to change max-limit value).