Description of problem:
Corosync presently does not support automatic recovery of failed rings. As soon as a ring goes to the FAULTY state, administrative intervention (with corosync-cfgtool -r) is required to restore the link.

Version-Release number of selected component (if applicable):
1.2.3

How reproducible:
100%

Steps to Reproduce:
1. Break connectivity on a Corosync link (remove network cable, insert an iptables rule dropping corosync packets, etc.)
2. After about 15 seconds, run corosync-cfgtool -s. Observe link status is now FAULTY.
3. Restore the link (replug network cable, remove iptables rule, etc.)
  
Actual results:
Link remains FAULTY.

Expected results:
Link goes back to a healthy state.