nanog mailing list archives
Re: NSP ... New Information
From: Stephen A Misel <stevem () hway net>
Date: Thu, 05 Jun 1997 11:39:40 -0400
Miguel, Interesting. I haven't contemplated any aspect of your idea other than nameserver restarts. With 30,000 domains hosted here, our nameserver (which, according to the INTERNIC, is authorative for more domains than any nameserver in the world) takes about 20 minutes to restart (it's an SGI Challenge S). Our secondaries take a little longer. That's with one A record per domain. Restarting a nameserver every time a link gets sick is not an option, at least for us. Steve At 07:02 PM 6/5/97 +0800, Miguel A.L. Paraz wrote:
Hi, Phil Howard wrote:In effect Sprint is encouraging the waste of IP space. I'm putting
together
a proposal now for a web farm type of facility for a group of investors and a block of /19 is way more than is needed. But the plan is going to
have at
least 4 points of multi-homing to diverse backbone providers, so a fully announceable block is essential.Idea: How about getting provider-dependent space from each one, then make the web servers listen on different addresses each. Rig the DNS with a low TTL for the server A records, or perhaps use dynamic updates (haven't tried it yet though) to remove the IP from the A list if a link goes down. Example you get space from: ISP A 10.0.0.0/24 ISP B 10.1.0.0/24 ISP C 10.2.0.0/24 ISP D 10.3.0.0/24 So you have: www.customer1.com IN A 10.0.0.1 IN A 10.1.0.1 IN A 10.2.0.1 IN A 10.3.0.1 www.customer2.com IN A 10.0.0.2 IN A 10.1.0.2 IN A 10.2.0.2 IN A 10.3.0.2 Now if ISP C goes down, delete 10.2.0.1 and 10.2.0.2 from the list. -- miguel a.l. paraz <map () iphil net>
+63-2-893-0850
iphil communications, makati city, philippines
<http://www.iphil.net>
Current thread:
- Re: NSP ... New Information Eric Germann (Jun 04)
- Re: NSP ... New Information Phil Howard (Jun 04)
- Re: NSP ... New Information Miguel A.L. Paraz (Jun 05)
- Re: NSP ... New Information Stephen A Misel (Jun 05)
- Re: NSP ... New Information Michael Dillon (Jun 08)
- Re: NSP ... New Information Tung-Hui Hu (Jun 08)
- Re: NSP ... New Information Bill Manning (Jun 08)
- 192/8 (was Re: NSP ... New Information ) Suzanne Woolf (Jun 08)
- Re: 192/8 (was Re: NSP ... New Information ) Matthew Petach (Jun 08)
- Re: NSP ... New Information George Herbert (Jun 10)
- Re: NSP ... New Information Miguel A.L. Paraz (Jun 05)
- Re: NSP ... New Information Paul A Vixie (Jun 10)
- multihoming without BGP Tung-Hui Hu (Jun 10)
- Re: multihoming without BGP Paul A Vixie (Jun 10)
- Re: multihoming without BGP Robert E. Seastrom (Jun 10)
- Re: NSP ... New Information Phil Howard (Jun 04)