New command to set the license mode

You can set the license mode for enhanced MPCs such as MPC4E, MPC5E, and MPC6E by including the ir-mode configuration statement at the [edit chassis fpc] hierarchy level. Setting the license mode enables you to distinguish between an MPC with an IR license and an MPC with an R license after the MPC is installed on the router. The license mode settings are set per slot. If the MPC is installed on a different slot, or moved to another device, the license mode settings must be re-configured on the new slot or device. Also, the license mode settings configured on the previous slot must be removed. To view the current license mode settings, as well as the effect of the new settings, use the show chassis fpc and show chassis hardware extensive commands. To delete the license mode settings, use the delete chassis fpc command.