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Description of problem:
In an environment using ipv6 for internal communication , on 29 day time , 
the pacemaker brought down services .
Not able to bring up the resources & pcs tends to fence other nodes .

Version-Release number of selected component (if applicable):
OSP Director 7.3
OpenStack 7.0.4
resource-agents-3.9.5-54.el7_2.6.x86_64

How reproducible:


Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:

- OSP3 was been provision with Director
- IPV6 is being used here for internal communication 
- none of 3 node want to be part of cluster and start failing eventually
- manually few resources started but failed again. 
- All the nodes rebooted and same scenario
- tried to put standby two nodes (slnec1ctl0 slnec1ctl1) and try to start one node(slnec1ctl2), even not working

Please add also sosreports from the undercloud as we might be hitting this bug https://bugzilla.redhat.com/show_bug.cgi?id=1245298 that causes the nodes to be rebooted/fenced in a loop similar to what you describe.