ISP Routers for Link Controller

Hi Everyone, Many of you must have worked with F5-Link controller I have some of the queries and was looking for some authentic reply.

 

1. If I have 3 ISP connections is it necessary that all of the connections should be terminating on a separate router or it can be terminated on a single router?

    

2. I want to do bandwidth control on Link controller, under Networks i found Bandwidth Controller & Rate shapping options what is the difference between the two how can i get benefit out of both of them as i can attach both to the Virtual Servers.

    

3. Is it possible that I can block the DNS request from selected countries to come to my Link Controller.

    

4. To monitor the links I want to create a realistic monitor which should keep on fetching the website page and based on that mark the pool member (which is the ISP router) as up or down.

    

Experts input pls.

 

Regards