1. L0: When the port is L0, it is in normal mode. In this mode, the switch ports can be F_Port, L_Port, and E_Port. The distance of the supported equipment (maximum 5km for 2Gb, 2km for 4Gb, and 1km for 8Gb).
2. LE: When the port is in LE mode, the port can only be configured as E_Port to connect to other switches. In this mode, the distance between switches can reach 10km.
3. LD: The LD mode is a dynamic adaptive mode. According to the distance set by the user and the actual distance detected by the system, the minimum value of the two is allocated to the buffer. This mode can support distances over 10km. The maximum support distance depends on the number of Buffers that the switch can allocate.
4. LS: LS is a static long-distance mode. This mode is similar to LD and supports distances over 10km. The difference is that the LS reserves the Buffer differently from the LD. The LS only uses the user-defined distance as the reference number of the allocated Buffer. .
