How to route to other backend services using Kong in case of rate limited and backend services are failed

Questions
1

I’m a new joiner to use Kong.
I have two use cases which I want to confirm whether having these feasibilities and solutions.

  1. If using rate limiting plugin, whether or not it could route to other services if rate limit is exceeded.
    Example, Try to catch rate limited error, and proxy to other target servers.

  2. If One of backend servers is failed or other reasons about no responses, whether or not it could route to another backend services.