|
North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: ISP network design of non-authoritative caches
On Sun, Nov 18, 2001 at 10:19:22AM -0000, Alex Bligh wrote: > > > > --On Saturday, 17 November, 2001 4:48 AM -0500 Sean Donelan > <[email protected]> wrote: > > > We know this isn't good engineering practice, because another national > > ISP with millions of subscribers configured their network the same way, > > and experienced a multi-hour service disruption affecting most of their > > users a couple of years ago when an error blocked access to their two > > caching-only, name servers. > > You mean there are national ISPs out there, who have exactly 2 > caching nameservers, as opposed to configure their clients with > 2 IP addresses (perhaps always the same 2) which perform name > resolution? Wow. Is this some sort of retro fashion? Yes, there are. No, it's not fashion. Though it's about as foolish. Names avoided to prevent NDA lawsuits. You can fill in the blanks. -- *************************************************************************** Joel Baker System Administrator - lightbearer.com [email protected] http://users.lightbearer.com/lucifer/
|