nanog mailing list archives
Re: NSP ... New Information
From: "Miguel A.L. Paraz" <map () iphil net>
Date: Thu, 5 Jun 1997 19:02:20 +0800 (HKT)
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: NSP ... New Information Phil Howard (Jun 04)