vCenter Server Heartbeat consists of two servers (one active and one passive), so you need only one vCSHB license for that Primary/Secondary cluster.
Both machines can have access to the internet all the time through their Management IPs
vCenter Server Heartbeat consists of two servers (one active and one passive), so you need only one vCSHB license for that Primary/Secondary cluster.
Both machines can have access to the internet all the time through their Management IPs