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