To perform system functions in a virtual infrastructure in addition to providing network connectivity to the virtual machines, the ESXi hosts in the management domain are connected to several dedicated networks. See vcf-virtualization-network-design-1.html#GUID-611238ED-60FE-4DEE-A735-0016640DE5DD-en_SECTION_9290DF89-739E-4001-BC80-388799EBC78F and のオーバーレイ設計.

You must assign a static IP address for the management interface of each ESXi host in the management domain.

Following industry best practices, VMware Cloud Foundation does not allow using DHCP to assign an IP address to the management interface of ESXi hosts.

Name resolution provides the translation between an IP address and a fully qualified domain name (FQDN). The management IP address of each ESXi host in the management domain must have valid internal DNS registration which includes forward and reverse name resolution.

Time synchronization provided by the Network Time Protocol (NTP) is important to ensure that all components in the SDDC are synchronized to the same time source. For example, if the clocks on the physical machines in your vSphere network are not synchronized, SSL certificates and SAML Tokens, which are time-sensitive, might not be recognized as valid in communications between network machines. Time inconsistencies in vSphere can cause first-boot to fail at different services depending on where in the environment time is not accurate and when the time is synchronized.