17 | Network Planning Guide
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Step 3: Plan Network Settings for VxRail Management Components
During the VxRail automated implementation process, IP addresses entered are assigned to the components within the VxRail
cluster that are part of the Management network. The IP addresses assigned to the components within the Management network
must follow certain rules:
• The IP address scheme be a public IP address range
• The IP address must be free, and cannot be in use
• The IP addresses assigned to the VxRail nodes must be contiguous (sequential order)
• The IP address range must all be in the same subnet (non-routable)
The decisions you make on the final VxRail configuration planned for your data center impacts the number of IP addresses you will
need to reserve.
Figure 7. VxRail Management Components and Required Networks
• Decide if you want to reserve additional IP addresses in the VxRail management system to assign to VxRail nodes in the future
for expansion purposes. When a new node is added to an existing VxRail cluster, it will assign an IP address from the unused
reserve pool, or prompt you to enter an IP address manually.
• Decide whether you will use the vCenter instance that is deployed in the VxRail cluster, or if you will use an external vCenter
already operational in your data center. If you choose to use the vCenter instance deployed on the VxRail cluster, you will need
to reserve an IP address for vCenter and an IP address for the Platform Service Controller
• Decide if you will use vSphere Log Insight that can be deployed in the VxRail cluster
o If you choose to the vCenter instance that is deployed in the VxRail cluster, then you have the option to deploy
vSphere Log Insight, use an existing syslog server in your data center, or no logging at all. Reserve one IP
address if you choose to deploy vSphere Log Insight in the VxRail cluster
o If you choose to use an external vCenter already operational in your data center for VxRail, then vSphere Log
Insight will not be deployed
• VxRail supports the Dell-EMC ‘call home’ feature, where alerts from the appliance are routed to customer service. The Secure
Remote Gateway is required to enable alerts from VxRail to be sent to Dell-EMC customer service
o Decide whether to use an existing Secure Remote Services gateway in your data center for ‘call-home’, deploy a
virtual instance of the Secure Remote Services gateway in the VxRail cluster for this purpose, or none at all
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