I have a small service that is split into 3 docker containers. One backend, one frontend and a small logging part. I now want to start them using coreOS and fleet. 

I want to try and start 3 redundant backend containers, so the frontend can switch between them, if one of them fails.

How do i link them? If i only use one, it's easy, i just give it a name, e.g. 'back' and link it like this

```
docker run  --name front --link back:back --link graphite:graphite -p 8080:8080 blurio/hystrixfront

```

Is it possible to link multiple ones?