Specifications

Table Of Contents
Reference Guide
26 VMware, Inc.
LAN
When deployed in a LAN environment, vCenter Server Heartbeat requires that both servers use the same
Principal (Public) IP address. Each server also requires a separate VMware Channel IP address on a separate
dedicated subnet.
Primary Server
Three NICs (1 x Public and 2 x Channel) are recommended for redundancy in the event one channel fails. A
minimum of two NICs (one for the Channel, and one for the Public) are required in this configuration.
Split-brain Avoidance should be configured.
Principal (Public) network connection configured with the following:
Static IP address
Correct network mask
Correct Gateway address
Correct preferred and secondary (if applicable) DNS server address
NetBIOS enabled
Channel Network connection(s) configured with the following:
Static IP address in a different subnet than the Principal (Public) network with a different IP address
than the Secondary server channel NIC
Correct network mask
No Gateway IP address
No DNS server address
NetBIOS enabled (setup will disable this during the installation process)
Secondary Server
Networking components on the Secondary server must be configured as follows:
Same number of NICs as the Primary server
Principal (Public) network connection configured with temporary network settings
Channel network connection(s) configured with the following:
Static IP address in a different subnet than the Principal (Public) network with a different IP address
than the Primary server channel NIC
Correct network mask
No Gateway IP address
No DNS IP address
NetBIOS enabled (setup will disable this during the installation process
File and print sharing enabled
WAN
Deploying vCenter Server Heartbeat in a WAN environment requires additional considerations. Each server
within the vCenter Server Heartbeat pair requires its own separate Principal (Public) IP address and a VMware
Channel IP address in a separate dedicated subnet.
N
OTE When installing vCenter Server Heartbeat in a LAN environment, do not enable the Low Bandwidth
Module as this is designed for WAN deployments.