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Dell VxRail Network Planning Guide
Introduction Planning your data center network for VxRail VxRail cluster types VxRail feature-driven decision points VxRail hardware and switch selection decision points Prepare data center for VxRail implementation
Introduction
Prepare data center routing services
Prepare for multi-rack VxRail cluster
Prepare for vSAN HCI mesh topology
Prepare external FC storage for dynamic clusters
Prepare for VxRail custom uplink assignments
Prepare data center network MTU
Prepare for link aggregation of VxRail networks
Plan link aggregation on switch port pairs
Prepare certificate authority server for VxRail
Prepare VxRail remote support connectivity
Identify isolation IP addresses for vSphere High Availability
Planning the VxRail cluster implementation Planning for VxRail satellite nodes Configure the network for VxRail Preparing 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: Virtual Distributed Switch Portgroup Default Settings Appendix F: Physical Network Switch Examples

Prepare for multi-rack VxRail cluster

Prepare for multi-rack VxRail cluster

  • A VxRail cluster can be extended beyond a single physical rack and can extend to as many as six racks. All the network addresses applied to the VxRail nodes within a single rack must be within the same subnet.

    You have two options if the VxRail cluster extends beyond a single rack:

    • Use the same assigned subnet ranges for all VxRail nodes in the expansion rack. This option is required if SmartFabric Services are enabled in ‘integrated mode’ on supporting switch infrastructure.
    • Assign a new subnet range with a new gateway to the VxRail nodes in the expansion racks. (Your VxRail cluster must be running version 4.7.300 or later to use this option.)

    If the same subnets are extended to the expansion racks, the VLANs representing those VxRail networks must be configured on the top-of-rack switches in each expansion rack, and physical connectivity must be established. If new subnets are used for the VxRail nodes and management components in the expansion racks, the VLANs will terminate at the router layer, and routing services must be configured to enable connectivity between the racks.

    Figure 36.    Multi-Rack VxRail sharing the same subnet

    Figure 37.    Multi-Rack VxRail with different subnets