I prefer to bond multiple network interfaces for redundancy, however viewing and configuring the bond interface can be a bit tricky.
Multiple network links can be bonded using "active-backup" mode so that if one NIC goes down, another will take its place. This mode does not require a managed switch, however it has trouble prioritizing one interface over another. For example if you have a 1 Gbps NIC and a 10 Gbps NIC, unRAID is not smart enough to prefer the 10 Gbps NIC.
View overall bond status: cat /proc/net/bonding/bond0