Prerequisites for cluster peering

Before you set up cluster peering, you should confirm that the connectivity, port, IP address, subnet, firewall, and cluster-naming requirements are met.

Connectivity requirements

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.

Port requirements

The ports that are used for intercluster communication must meet the following requirements:

Firewall requirements

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.

Cluster requirements

Clusters must meet the following requirements: