Comment 3 for bug 1575594

Tests failed with error "The router 745af174-dddb-4be9-af73-ee9c832edcc6 has been already hosted by the L3 Agent f1160694-eff0-461b-949e-477acc83ca55." This means that test tried to create router with same id that router was already created. In neutron server and l3-agent logs there are no error messages, only DEBUG neutron.scheduler.l3_agent_scheduler [req-ca225f68-bc78-49c4-8585-2aad442a1a5f - - - - -] Router a6e91384-5d05-4df4-8350-b9cdd5ba353f has already been hosted by L3 agent 92fba2dc-92f1-417d-a8f4-8de3bde86629 _filter_unscheduled_routers /usr/lib/python2.7/dist-packages/neutron/scheduler/l3_agent_scheduler.py

I was able to reproduce the failed test on the env with DVR and VXLAN iso 189. Error - http://paste.openstack.org/show/495678/ neutron router list during test execution - http://paste.openstack.org/show/495677/, so this router was created and deleted successfully during the test. Consider this bug as a problem with tempest test.