Before you set up cluster peering, you should confirm that the connectivity, port, IP address, subnet, firewall, and cluster-naming requirements are met.
The subnet used in each cluster for intercluster communication must meet the following requirements:
Each node must have an intercluster LIF with an IP address on the intercluster network.
The intercluster network must be configured so that cluster peers have pair-wise full-mesh connectivity within the applicable IPspace, which means that each pair of clusters in a cluster peer relationship has connectivity among all of their intercluster LIFs.
A cluster’s intercluster LIFs have an IPv4 address or an IPv6 address.
The ports that are used for intercluster communication must meet the following requirements:
You can use multiple IPspaces to peer with multiple clusters. Pair-wise full-mesh connectivity is required only within an IPspace.
Ports added to a broadcast domain can be physical network ports, VLANs, or interface groups (ifgrps).
Firewalls and the intercluster firewall policy must allow the following protocols:
The default intercluster firewall policy allows access through the HTTPS protocol and from all IP addresses (0.0.0.0/0), but the policy can be altered or replaced.
Clusters must meet the following requirements:
Cluster peers can be in different time zones.