Based on the selected network topology, configure the ToR network switches to enable storage and VM/management traffic.
Configuring switch VLT redundancy with Virtual Router Redundancy Protocol (VRRP) provides a virtual floating IP address that any node can reference as a gateway. If a switch fails, the virtual IP address is transferred to a peer switch.
VRRP is an active/standby, first-hop redundancy protocol (FHRP). When used with VLT peers, VRRP becomes an active/active protocol. The VRRP virtual MAC address is the local destination address in the forwarding information base (FIB) table of both VLT peers. Using this method, the backup VRRP router forwards intercepted frames that have a destination MAC address that matches the VRRP virtual MAC address.
A standard Storage Spaces Direct deployment requires four basic types of networks: OOB management, host management, compute, and storage. The number of network ports (two or four) that are used within the storage configuration determines whether you have two or four fault domains.
For sample switch configurations, see Microsoft Azure Stack HCI Solutions from Dell Technologies: Switch Configurations – RoCE Only (Mellanox Cards) and Microsoft Azure Stack HCI Solutions from Dell Technologies: Switch Configurations - iWARP Only (Qlogic Cards).