The Access Appliance has two 10 GbE uplinks per node. Each physical port maps to a virtual IP. Thus, there are four virtual IP addresses. Always present the virtual IP to clients or in this scenario FlashArray so it will automatically transition to the other node if one node fails, the physical links on one node fails, or the node becomes unreachable.
Bonding is an option on Access Appliance. Joining or bonding multiple network interfaces on the Access appliances into a single interface improves the bandwidth and network throughput through the combined interface. Bonding is only configurable via the Access command-line interface. As a best practice, the switch that the uplinks of the Access Appliance are connected to should be configured appropriately for the link aggregation.
For load balancing, virtual IP addresses of the nodes can be manually assigned to applications in a distributed manner. Balancing the load across the nodes and network interfaces improves overall performance especially when directing multiple FlashArray to a single Access Appliance.