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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 for VxRail satellite nodes Configure the network for VxRail Preparing to build the VxRail cluster VxRail network considerations after implementation
Introduction
Using unassigned physical ports for VxRail networks
Configure link aggregation on VxRail networks
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

Configure link aggregation on VxRail networks

Configure link aggregation on VxRail networks

  • Starting with VxRail version 7.0.130, NIC teaming can be configured on the VxRail non-management networks with a both a customer-supplied and VxRail-supplied virtual-distributed switch after the cluster initial implementation process is complete. NIC teaming enables the formation of a link aggregation group, which is a logical port that represents a pair of physical ports on a VxRail node. If the ports on the top-of-rack switches connected to these logical ports are also configured into a link aggregation group, peering between the two link aggregation groups will enable an active/active port configuration and support load-balancing for network optimization.

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    Figure 68.    Enabling link aggregation for load-balancing

    The following rules are applicable for enabling link aggregation:

    • A minimum of four Ethernet ports per VxRail node is required for the VxRail networks.
    • Two ports configured to support VxRail management networks (Management/vCenter/VxRail discovery)
    • Two ports configured to support vSAN and vMotion. 
    • Can be all NDC/OCP ports, all PCIe ports, or a mixture of NDC/OCP and PCIe ports
    • If all your VxRail networks are on NDC/OCP-based ports, you can migrate the non-management VxRail networks to PCIe-based ports to enable NIC redundancy.
    • All VxRail node ports configured for link aggregation must be the same speed.
    • Link aggregation can only be configured on the non-management VxRail networks.
    • If you want to enable load-balancing only on the vSAN network, you have the option to migrate the vMotion network over to the ports supporting the VxRail management networks.
    • The top-of-rack switches support dynamic link aggregation with LACP.

    Dynamic link aggregation requires:

    • Dynamic port channels are configured on the adjacent top-of-rack switches.
    • LACP is enabled on the adjacent top-of-rack switches.
    • An LACP policy is configured on the virtual distributed switch.
    • The load-balancing setting on the LACP policy is compatible with the supported load-balancing hash algorithms on the adjacent top-of-rack switches.

    Figure 69.    LACP Policy configuration on virtual-distributed- switch