The difference of configuring CAR at interface view and global on S series switch box device

For the S series frame switch, the interface configuration of the CAR only limit the interface speed. When configure CAR at system view and define slot parameter, all interface of this slot will share this CAR. When configure CAR at sysetem view without defining slot parameter, all interfaces on every board share this CAR.
For example, configured inbound CAR as 5000kbit/s:
- If this is applied to the interface, the speed limit is only for this interface. This interface can receive up to 5000kbit/s.
- If this is configured at system view and specified slot parameter, the sum rate of all the interfaces on this slot on the board is 5000kbit/s;
- If this is configured at system view without specified slot parameter, the rate at all the interfaces on this device receive packets is up to 5000kbit/s.

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