Bridge Interface is a software used to unite more than one LAN segments in Layer-2. Bridge is used to filter network traffic between segments. The inbuilt Linux kernel function allows the user to set up a software bridge that interconnects multiple network interfaces. It reduces the maximum amount of traffic on many LAN segments. It is used to filter and reduce network traffic between many LAN segments. The users can set up a software bridge that interconnects multiple network interfaces. Bridge interface service in Ubuntu is explained in this article.