Hi All,
            I  have 3 separate cassandra clusters running in multiple data centers which I want to convert to  one cassandra cluster across multiple data centers
Does anyone tried this? If so what are the steps:

I think I need to do the following:
a)Change cluster name: What is the procedure to do this?
b)Change tokens so that each node have a unique token
c)Change seed nodes so that machines in one data center know about machines in another data center.