satellite 5.7 and satellite 6 master and slave configuration

I have redhat satellite server 5.7 and for testing purpose i have install satellite 6.
For channels sync i have to provide access to internet for new satellite 6 server. Is there any way using which I can sync channels in satellite 6 by pointing out satellite 5.7. is will help me in saving time and I can avoid unnecessary traffic or bandwidth for internet.

On satellite 5.7 I already have 4 channels synced and want to utilized its content / packages /rpm for satellite 6.

In satellite 5.6 and satellite 5.7 master slave configuration are available.so that channels can be sync internally and I guesses same thing can be not available on satellite 6.