At 09:47 PM 18-10-08 +0500, Masood Ahmad Shah wrote: I am curious if anyone else uses conditional BGP as a poor man's DRP?
Suppose you have site A with 192.168.1.0/24. The site is connected to 2 upstream ISPs and they have a number of servers at site A. They now create a DRP site (site B), which is also connected to 2 upstream ISPs and they create a mirror copy of those servers from site A over at site B and assign them the *exact* same IP addresses as at site A. They have the router at site B do conditional BGP, checking to see if it sees 192.168.1.0/24 from the Internet. As soon as it disappears (site A is gone), site B starts announcing 192.168.1.0/24 to the Internet and all the DRP servers at site B are suddenly active. Ignoring the syncing of the servers from site B to site A, what is the downside of such a "poor mans' DRP solution?
Regards, Hank
A nice book on BGP Practical BGP By Russ White Regards, Masood BLOG: http://www.weblogs.com.pk/jahil -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mark Boolootian Sent: Wednesday, September 24, 2008 6:06 AM To: [EMAIL PROTECTED] Cc: [email protected] Subject: Re: [c-nsp] Conditional BGP > 2) View the NANOG presentation archives. Several come to mind; I'll try to > compile a list of suggestions, or just browse away. Search the presentation archive for Smith and BGP. Philip Smith's BGP tutorials are outstanding.
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