We have two 7507 routers chasis sitting idle in our store room. There is need to setup Internet gateway which can handle multiple STM-1 capacity. We have our own Public AS Number and we are connecting to Tier-1 Internet backbone through undersea submarine cable. Our first connection will be to our Internet upstream provider. I wish to know if I can use 7507 for this purpose and what card module do I need to purchase to meet my requirements, any other advice will be highly welcome.
Note: I am aware 7507 has reached EOL and we've order 2 7609 but it will take Cisco 6 months to deliver and install and we can't wait.
Your help will be highly appreciated.