Internal port ID on S and E series switches

For S and E series switches (except S1700 switches), sometimes the port number displayed in the debugging information is the internal number of a port, but not in the format similar to Gigabitethernet 2/0/1.
The internal port numbers are classified into two types:
Logical port number (LPort): The number starts from 0, and each number is unique in the system.
Physical port number (PhyPortID): The number starts from 0, and each number is unique on each card.

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