Per slot license enables limited per-vlan-queuing on 16X10G MPC,MPC6E,MPC4E and MPC3E (only for 10G, 40G and 100G ports);Per slot license for enabling 32K total queues on non-Q MPCs MPC5E-100G10G, MPC5E-40G10G, MPC2E-3D-NG and MPC3E-3D-NG.
Per slot license to support 32K total queues on MPC7E. Applicable to MPC7E-MRATE, MPC7E-10G; MPC7E-MRATE-IRB, MPC7E-10G-IRB; MPC7E-MRATE-RB, MPC7E-10G-RB..