cloudfuse over private net

[gionni2010]

Hello, sorry for my question, but i'm new to rackspace and i need to learn a lot.

I'm testing cloudfuse to do incremental backups from my cloud servers to cloud files.

questions:

1. i have to pay for bandwidth used from and to cloud files and cloud servers? Tech sopport said that i can use a private net to comunicate with cloud files from my cloud servers with the API... Is cloudfuse using this private net?

2. i think i'll use rdiff-backup over cloud fuse... do you think this is a good solution? or do you have others solutions to suggest me?

Sorry for my english and thank you very much!!