I am currently planning a new datacenter and all that entails. This new datacenter is in the same city and is less than 2ms latency. The old datacenter and new datacenter will be connected with a VPLS circuit terminated on CISCO 4431 ISRs. The datacenter use Vmware and all machines need to be vmotioned to the new datacenter.
Each datacenter has a pair of Nexus 9K switches hosting the layer 3 datacenter networks configured with HSRP at each site
HSRP requires layer 2 connectivity to properly share the HSRP packets. Since the VPLS is terminated on an ISR, the packets do not flow between the 2 sites and they do not share a floating IP.
Is there a method to setup a HSRP style network between these 2 datacenters to allow easy migration without giving new IPs to the workloads?
The ISR 4431 are not powerful enough terminate the VPLS circuits directly on the Nexus devices on the two sites or you will have a bottle neck for performance.
