AWS Route 53
Routing Policies:
When you
create a record, you choose a routing policy, which determines how Amazon
Route 53 responds to queries:
1.
Simple Routing:
Randomly picks IP
2.
Weighted Routing: Routes
traffic as per the weight allotted, in example 70% of the traffic will be routed
to 30.1.1.2 IP and rest will be to another
3.
Latency Based Routing: Routing
based on latency. The traffic will be routed to the instance which takes lesser
time to reach.
4.
Failover Routing: Active/Passive.
The routing will be diverted to the active instance and if the instance goes
down then the passive instance will be made active.
5.
Geolocation Based Routing: The
routing will be based on route location of user & instance.
Geoproximity Routing (traffic
flow only):
Geoproximity routing
lets Amazon Route 53 route traffic to your resources based on the
geographic location of your users and your resources. You can also optionally
choose to route more traffic or less to a given resource by specifying a value,
known as a bias. A bias expands or shrinks the size of the geographic
region from which traffic is routed to a resource.
6.
Multivalue Answer routing: Same
like Simple routing policy but health check will be added and the unhealthy
instance will be removed from the routing policy.
