Need some advice on the following. Have 2 data centers currently active/standby and am looking to advertise the same /24 prefixes from both locations in case a DC is lost. Currently not an option to use something like GTM in an active/active type scenario.
Current setup is as following : Redundant firewalls/routers/load balancers etc.
Web and FTP Farms
Public /24 prefix advertised via BGP to internet. Inbound traffic routed from edge routers to external FW's and natted to VIP(s) on Loadbalancer. Server Poolsl sitting behind another layer of Internal firewalls. All addressing behind edge routers is RFC1918
DC1 and DC2 connected via 2 x 10G links with OSPF routing on Nexus 5596's.
In order to avoid complex routing/NAT would the easiest way to do this maybe to create some kind of wan backbone between the edge routers and DC1/DC2 core 5596 routers using some kind of traffic seperation mechanism ( vrf's etc. ) so same stateful devices can then process return traffic.
Any documents/links to similar setup would be helpful.
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