I found some IBM pages explaining more about the dependency resolution site and the outdated sites.
Also found the announcement page about the Redhat native tools site.
https://www.ibm.com/developerworks/community/blogs/a1a33778-88b7-452a-9133-c955812f8910/entry/patches_for_rhel_5_and_rhel_6_gets_new_content_and_dependency_resolution_method?lang=en
However, it doesn’t explain that the native tools site only work if you have a local repo/Statellite ?