Setting Up a Network Bridge

In general, a bridge refers to various methods of combining (aggregating) multiple network connections into a single aggregate network.

TrueNAS uses bridge(4) as the kernel bridge driver. Bridge(8) is a command for configuring the bridge in Linux. While the examples focus on the deprecated brctl(8) from the bridge-utilities package, we use ip(8) and bridge(8) from iproute2 instead. Refer to the FAQ section that covers bridging topics more generally.

Network bridging does not inherently aggregate bandwidth like link aggregation (LAGG). Bridging is often used for scenarios that require extending a network segment or combining different types of network traffic.