That sounds like a good idea. Thank you very much. What do you think of using conditional advertisement based on their Route Reflector to advertise a default route? (I think the biggest problem is that most ISPs might not want to do that correct?)
Thank you again. Tom -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Saku Ytti Sent: Friday, December 12, 2008 10:42 AM To: [email protected] Subject: Re: [c-nsp] Detect Upstream ISP's BGP problems. On (2008-12-12 09:57 -0600), [email protected] wrote: > I know I could ask the ISPs to provide me a core route and use > conditional advertisement, which would work well for traffic coming > inbound, but what about outbound? How can I make the default route > disappear from an ISP that is having internal problems. Don't get default, get PA aggregate. And point static route to that PA aggregate and the interface. If ISPs peering router is separated from ISPs core, the PA aggregate disappears and static default will be invalid, allowing you to converge to another path. For more advanced stuff, you might want to look at 'PfR' from cisco. -- ++ytti _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
