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Thread Index [isp-bgp] Smaller ISP, do we need full BGP routes?
Hello, I work for a smaller ISP in Chicago and we are running a multi-homed BGP environment with 2 backbone providers. Our edge router is a 7206VXR (NPE300) with 256MB of RAM. We have 6 T1s plugged into this router, 3 to each backbone provider. We are also currently taking full BGP feeds from both providers. I have been noticing somewhat of an increase in CPU and memory usage on the edge router in the past few months and would like to get some assistance on whether or not we should be taking full BGP feeds since I understand this takes up a lot of CPU and memory. Another reason for this performance/latency throughout our network. According to our MRTG graphs, I can say 99 percent of our traffic is inbound. Since we are an ISP, everyone is downloading images and files more than uploading like a web hosting provider would. What I mean is taking full BGP feeds for outbound traffic really shouldn't matter. We should just take partial or default routes and let our backbone providers decide where to send the outbound traffic. Our inbound traffic is determined through our AS prepending & advertisements config. I would like to know what is recommended. Should we be accepting full BGP feeds and deal with the CPU & Mem usage? Or should we be taking only partial with a default? What is best practice or what are other network engineers doing with similar environments? Any information is greatly appreciated. Thanks, Anthony __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com ------------------------ANNOUNCEMENT--------------------------------- --------------------------------------------------------------------- ISPCON FALL 2003 - Santa Clara Convention Center October 20-22 - The Definitive Event Wired and Wireless ISPs www.ispcon.com ---------------------------------------------------------------------- ----------------------------------------------------------------------
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