MVPN source-active upstream multicast hop selection and redundant source improvements

You can use new configuration statements available at the [edit protocols mvpn] hierarchy level to influence the source-active upstream multicast hop selection process. You can use the umh-selection-additional-input statement to influence the upstream multicast hop selection by making the MVPN consider some combination of route preference and RSVP tunnel status. You can use the source-redundancy statement so that the MVPN acts on all redundant sources sending to a specific group address as the same source.