bridge

A technology that enables traffic from a source device using one physical transport network technology to be transmitted to the destination device using an alternative physical transport network technology.

In some cases a bridge is referred to as a physical transport gateway or storage router.

A device that connects multiple LAN segments at the physical address layer.

As opposed to a hub, which indiscriminately rebroadcasts everything from one segment to the other, a bridge only retransmits traffic from one segment to another when the traffic is intended for the destination segment.

A Fibre Channel technology that provides a transparent Fibre Channel Fabric extension between two Fibre Channel Switch E_Ports through the use of two B_Ports tunneling through some alternative technology, resulting in an Inter-Switch Link.