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Re: Disaster recovery using as-prepend?
Answering the original question, as prepends are not a definitive way to force all traffic to one site or the other.
Two ways that definitely will work are.
1. Send a community to the upstream provider at the backup site that causes them to set a lower plocalpref on the route you send them vs. the route learned from the internet.
2. If you have a large enough ip block, Advertise an aggregate address from your backup site, and more specifics from your primary. I.e. advertise a /23 from your backup site and the same /23 as two /24's from the primary.
Thu, 16 Feb 2006 16:10:02 +0100
Florian Weimer <email@example.com> wrote:
* Christopher J. Pilkington:We have a disaster recovery site which will have a clone of the myriadCan your backup servers run in parallel to your primary servers? How