On Sunday 13 November 2005 12:03 pm, kashani wrote: > Edward Muller wrote: > > You will need at least 3 ip addresses. One ip for each box and one > > 'floating' ip for the services (like http, smtp, pop, etc). Having the > > boxes at two separate ISPs is impossible since you won't be able to get > > them to fail over the 'floating' ip address, unless they really know what > > they are doing (both of them). > > It's not a matter of the ISP's knowing what they are doing. It's that > no ISP will announce a host route, x.x.x.x/32 into BGP. And if any ISP > is retarded enough to announce it, no other ISP will accept it. So > unless you're prepared to shift at minimum an entire class C, > x.x.x.x/24, from one colo to the other any sort of IP sharing scheme is > impossible.
That's true. I spoke too soon and wasn't thinking, much. :-) But the point is still valid that failing over an ip address (or even a lot of them) is a non-trivial task that requires co-operation from your ISPs. > > kashani -- Edward Muller - Interlix [EMAIL PROTECTED] 417-862-0573 PGP Key: http://interlix.com/Members/edwardam/pgpkeys
pgpk1b8CbWOtk.pgp
Description: PGP signature
