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Dell VxRail Network Planning Guide
Introduction Plan the VxRail network VxRail Cluster Types VxRail feature-driven decision points VxRail hardware and switch selection decision points Prepare the data center to implement VxRail
Prepare the data center to implement VxRail
Prepare external network connectivity for VxRail
Prepare service connectivity for VxRail
Prepare for VMware vSphere+ subscription licensing
Prepare data center routing services
Prepare for multirack VxRail cluster
Prepare for VMware vSAN HCI mesh topology
Prepare external FC storage for dynamic clusters
Prepare for VxRail custom uplink assignments
Prepare data center network MTU
Prepare for LAG of VxRail networks
Identify switch ports to be configured for LAG
Plan LAG on switch port pairs
Prepare certificate authority server for VxRail
Identify isolation IP addresses for VMware vSphere High Availability
Plan the VxRail cluster implementation Planning vSAN Witness Networking Planning VxRail Satellite Nodes Networking Configure the Network for VxRail Prepare to build the VxRail cluster VxRail network considerations after implementation Appendix A: VxRail Network Configuration Table Appendix B: VxRail Passwords Appendix C: VxRail cluster setup checklist Appendix D: VxRail Open Ports Requirements Appendix E: VMware VDS port group default settings Appendix F: Physical Network Switch Examples

Prepare data center network MTU

Prepare data center network MTU

  • During the initial build of the cluster, select the MTU size to assign to the VMware VDS. This allows you to configure the switch ports supporting the VxRail cluster to match the MTU setting on the VMware VDS, and reduce the potential for network fragmentation.

    You can select to run the VxRail cluster at the default MTU size of 1500 or instead select a larger MTU if your network supports it. If your data center network supports jumbo frames, configure the MTU size at 9000. A resource-intense network such as VMware vSAN is better suited for a network that is configured with jumbo frames.