Description of problem:

When deploying more than one 3.4.1.18 router, occasional 503s are observed.

Version-Release number of selected component (if applicable): OCP 3.4.1

How reproducible: Intermittent

Steps to Reproduce:
1. Scale router from 1 to 2
2. Monitor routes with a curl loop

Actual results: Occasional 503s observed

Expected results: No 503s

Additional info:

ROUTE: routeinfra0d Thu Jun  1 09:04:30 EDT 2017 Failed while loading URL with a 503 on attempt 53
ROUTE: routeinfra1d Thu Jun  1 09:04:30 EDT 2017 Failed while loading URL with a 503 on attempt 53
ROUTE: routeinfra0d Thu Jun  1 09:04:31 EDT 2017 Found a 200 on attempt 54
ROUTE: routeinfra1d Thu Jun  1 09:04:31 EDT 2017 Found a 200 on attempt 54
ROUTE: routeinfra0d Thu Jun  1 09:06:11 EDT 2017 Failed while loading URL with a 503 on attempt 1
ROUTE: routeinfra1d Thu Jun  1 09:06:11 EDT 2017 Failed while loading URL with a 503 on attempt 1
(snip) 
ROUTE: routeinfra0d Thu Jun  1 09:07:04 EDT 2017 Failed while loading URL with a 503 on attempt 40
ROUTE: routeinfra1d Thu Jun  1 09:07:04 EDT 2017 Failed while loading URL with a 503 on attempt 40
ROUTE: routeinfra0d Thu Jun  1 09:07:05 EDT 2017 Found a 200 on attempt 41
ROUTE: routeinfra1d Thu Jun  1 09:07:05 EDT 2017 Found a 200 on attempt 41

Attempts to correlate router log timestamps (with reloads) have not been successful yet.