Hi all. I have an unusual situation regarding BGP and 3 different ISPs. Currently we have two internet links from two different ISPs and each link is connected to a Cisco 3825 router with 512 MB of RAM. Now due to some very rapid developments in the last couple of days in our company we need to introduce a third ISP with their internet link. Due to budget and time restrictions my initial plan of increasing RAM on one router to 1 GB(so it can accept an additional BGP routing table) and to connect the third link to the router isn't likely to happen.
The solution I am considering now is reintroducing one of our older Cisco 3725 routers with 256 MB of RAM so we can connect the third provider. Due to the smaller amount of RAM I'm thinking of asking provider for a summary BGP table so when it receives BGP information from other two routers it doesn't crash because it ran out of RAM.
Do you think this setup could work or should I try something else? Any comments and suggestions are very welcome.