Fallback Scenarios
There are several fallback scenarios which can be used.
- HA Scenario
In the HA scenario there is a fallback for every load balancer.
- Active-Active Scenario
In this scenario the load balancers are fallback for each other.
- 2 Active, 1 Fallback
In this scenario you have two active load balancers and one fallback for both.
In every case the network numbers are more important than the order.
Example 1:
In this scenario Y takes over if X fails, because network A is not assigned to another instance. Z works as passive standby. If X and Y fail, Z takes over.
| Instance | Order | Network |
|---|---|---|
| Instance X | 1 | A |
| Instance Y | 2 | B |
| Instance Z | 3 |
Example 2:
In this scenario Z is fallback for X and Y because both networks are also assigned to Z.
| Instance | Order | Network |
|---|---|---|
| Instance X | 1 | A |
| Instance Y | 2 | B |
| Instance Z | 3 | A, B |