Per T363694 , we had some issues with pybal silently failing when its backends are not connected at layer 2. As pybal is unlikely to be updated, we can work around this by enabling IPIP encapsulation for our LVS pools. (See T357257 and related tickets)
Creating this ticket to:
- Consult with Traffic team on our options
- Decide whether or not to migrate.
If we decide to migrate, we'll create a separate ticket for the migration plan.