[LARTC] Ethernet Ring

[hareram]

Hi all

I was refered in archive of the List
i did not found right answer for my setup

so iam trying to find does any one deployed the setup iam looking

iam trying to Build network ring using Linux Box

I have 3 office connected with Fiber
setup looks like below


Eth0--(server1)-Eth1-------Fiber--------Eth0--(Server2)---Eth1-----Fiber----Eth0--(Server3)--eth1
| 
|
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Server1 Eth1 is connected to Server 2 Eth0
Server 2 Eth1 is connected to Server 3 Eth0
Server 3 Eth1 is connected to  server 1 Eth0

Each Server I have Another Card Eth2, Which is connected to Local LAN of the 
Office
Each Office is connected Using Fiber Media Distance of 5miles

I want to connected them using ring, and  if the Links fails, it should 
automatically move to Another Route dynamically.

can some one guide me how can i achive this kind of setup
any docs will be apprciated

thanks
hare