On 15/08/2014 00:00, Nat Morris wrote: > BGP sessions between the ASR 9xxxx and each DNS server in the cluster, > ExaBGP running on them announcing their loopback/service /32 + /128 > address(es). > > Health check scripts on each service to probe for service ability, > retract the announcement upon failure.
We are doing this exact same thing on many RIPE NCC DNS servers, and it works very well. The other advantage of BGP is that as soon as you withdraw the announcement, the router stops sending traffic to the server. With OSPF, you have timeouts of several seconds before traffic stops arriving at a dead server. Regards, Anand _______________________________________________ dns-operations mailing list [email protected] https://lists.dns-oarc.net/mailman/listinfo/dns-operations dns-jobs mailing list https://lists.dns-oarc.net/mailman/listinfo/dns-jobs
