M10i Router Routing Engine Redundancy
The M10i router has redundant Routing Engines. The M10i router has one Routing Engine in slot RE0 and another in slot RE1 (see Figure 193). By default, the Routing Engine in slot RE0 is the master and the one in slot RE1 is the backup. If one Routing Engine fails, the other one assumes the routing functions.
The M10i router Routing Engine faceplate has LEDs that indicate redundant Routing Engine operating status and mastership. (See Check the M10i Router Routing Engine LEDs.)
