Segment Routing test failure: Stopping then starting all switches

SRRouting test case 601:

• Bring up all switches
• verify connectivity
• bring down switches
• wait 60 seconds
• Bring up all switches
• (Wait 2 minutes to see if everything comes up) - All links/switches appear, but some missing flows
  • I have occasionally seen this pass when waiting 5-10 minutes before verifying connectivity, but that doesn't always seem to work
• Verify connectivity - Fails

I've tried with a 3 node cluster and a 7 node cluster and there appears to be no difference

Attached are onos-daigs, test logs, and t3 output for failed pings

These logs are from the latest in the onos-1.12 branch, commit 6ee98115bb94d986c2e4c85ef4498f83df4223fe