[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [FW1] Load Balancing to the internet using 2 ISPs - routing protocol?
Mike makes an important point about router memory. To do load sharing with BGP, you'll want to load the full Internet routing tables, which are currently over 70Mb and growing daily. Get at least 128Mb so it will still work 6 months from now. Also, keep in mind that BGP is much better at failover than it is at load sharing. It chooses a path based on which ISP link has the best route. If one of your providers is a major NSP (e.g. Sprint, UUnet), and the other is a 2nd or 3rd tier regional ISP, your load sharing will be very lopsided unless you do a lot of manual tweaking. You'll also need at least a contiguous Class C block of addresses and an AS number from InterNIC to get your ISPs to peer with you. Investigate their BGP peering policies, as some are more cooperative than others. BGP is not for the faint-of-heart, but there are a number of good docs on the subject, esp the FAQ by Avi Freedman. Here is one place to start: http://joe.lindsay.net/bgp.html Mark L. Decker Rainfinity - High Availability Software for [email protected] ---------------------------------- Mike Glassman wrote: Take a look at BGP-4. We use that here and it works fine, just make sure your Routers have enough memory for load balancing. ================================================================================ To unsubscribe from this mailing list, please see the instructions at http://www.checkpoint.com/services/mailing.html ================================================================================
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