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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 Planning the VxRail Cluster Implementation Planning vSAN Witness Networking Planning VxRail Satellite Nodes Networking Configure the Network for VxRail
Introduction to network configuration
Set up the network switch for VxRail connectivity
Set up the network switch ports for VxRail connectivity
Set up the upstream network for VxRail connectivity
Configure network to support RoCE
Confirm your data center network
Confirm your firewall settings
Confirm your data center environment
Preparing to Build the VxRail Cluster VxRail Network Considerations After Implementation Appendixes

Set up the upstream network for VxRail connectivity

Set up the upstream network for VxRail connectivity

  • The upstream network from the VxRail cluster must be configured to allow passage for VxRail networks that require external access. Using Appendix A: VxRail Network Configuration Table for reference, upstream passage is required for the External Management VLAN (Row 1), any VM Network VLANs (Row 6), and the optional vCenter Server Network VLAN (Row 7). If a vSAN witness is required for the VxRail cluster, include the VxRail Witness Traffic Separation VLAN (Row 74) for upstream passage. The VxRail Internal Management VLAN (Row 2) must be blocked from outbound upstream passage.

    Optionally, the vSphere vMotion VLAN (Row 3) and vSAN VLAN (Row 4) can be configured for upstream passage. If you plan to expand the VxRail cluster beyond a single rack, configure the VxRail network VLANs for either stretched Layer 2 networks across racks, or to pass upstream to routing services if new subnets will be assigned in expansion racks.

    DiagramDescription automatically generated

    Figure 71.    Logical networks connecting to upstream elements

    If your Layer 2/Layer 3 boundary is at the lowest network tier (top-of-rack switch), perform the following tasks:

    • Configure point-to-point links with the adjacent upstream switches.
    • Terminate the VLANs requiring upstream access on the top-of-rack switches.
    • Enable and configure routing services for the VxRail networks requiring upstream passage.

    If your Layer 2/Layer 3 boundary is upstream from at the lowest network tier (top-of-rack switch), perform the following tasks:

    • Connect ports on the adjacent upstream switch to the uplinks on the top-of-rack switches.
    • Configure logical pairings of the ports on the adjacent upstream switch and the top-of-rack switch.
    • Configure the logical port pairings, commonly known as “port channels” or “Ether Channels,” to allow upstream passage of external VxRail networks.