Why the command "display elabel" need long time to show the result？
The board elabel information will be read in the system cache firstly. But the elabel information is restored in the E2PROM of the board, and the communication bandwidth is narrow to transfer the abundant information. So the display result speed is rather slow in some boards.
But when type the command second for the same board, the system will get the information from its cache. So the result will be shown very fast in second times.
And the detailed result by the command can be seen in the attachment.