Network and DNS requirements
Configure the network, IP addressing, and DNS resolution to support communication between NetBackup components and the Cohesity cluster:
Assign one physical IP address for each node for node-level communication.
Configure one Cohesity virtual IP (VIP) per node for cluster services.
Configure one media server virtual IP (VIP) per node for media services access.
Define a single fully qualified domain name (FQDN) for Cohesity VIP resolution.
Define a unique fully qualified domain name (FQDN) for each media server VIP.
Ensure forward and reverse DNS resolution is configured correctly for all IP addresses and hostnames.
Verify that firewall rules allow all required network ports.
Proper VIP and DNS configuration is critical for cluster access, load balancing, and high availability in SpanFS environments.