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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 to data center preparation
Prepare external network connectivity for VxRail
Prepare remote support connectivity for VxRail
Prepare for vSphere+ subscription licensing
Prepare data center routing services
Prepare for multirack 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
Identify isolation IP addresses for vSphere High Availability
Planning the VxRail Cluster Implementation Planning vSAN Witness Networking Planning VxRail Satellite Nodes Networking Configure the Network for VxRail Preparing to Build the VxRail Cluster VxRail Network Considerations After Implementation Appendixes

Prepare data center network MTU

Prepare data center network MTU

  • At the time of initial cluster build, you can choose the MTU size to assign to the virtual distributed switches. This allows you to configure the switch ports supporting the VxRail cluster to match the MTU setting on the virtual distributed switches and reduce the potential for network fragmentation.

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