Use this list of requirements for reference related to the configuration of external infrastructure services in an environment with a single or multiple VMware Cloud Foundation instances. The requirements define IP address allocation, name resolution, and time synchronization.

For full design details, see External Services Design for VMware Cloud Foundation.

Table 1. External Services Design Requirements for VMware Cloud Foundation

Requirement ID

Design Requirement

Justification

Implication

VCF-EXT-REQD-NET-001

Allocate statically assigned IP addresses and host names for all workload domain components.

Ensures stability across the VMware Cloud Foundation instance, and makes it simpler to maintain, track, and implement a DNS configuration.

You must provide precise IP address management.

VCF-EXT-REQD-NET-002

Configure forward and reverse DNS records for all workload domain components.

Ensures that all components are accessible by using a fully qualified domain name instead of by using IP addresses only. It is easier to remember and connect to components across the VMware Cloud Foundation instance.

You must provide DNS records for each component.

VCF-EXT-REQD-NET-003

Configure time synchronization by using an internal NTP time source for all workload domain components.

Ensures that all components are synchronized with a valid time source.

An operational NTP service must be available in the environment.

VCF-EXT-REQD-NET-004

Set the NTP service for all workload domain components to start automatically.

Ensures that the NTP service remains synchronized after you restart a component.

None.