Difference between Assign consecutive mode (fixed timeslot mode) and Assign random mode (flexible timeslot mode) of a line board

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The Assign random mode indicates that cross-layer mapping can be performed for services, such as ODU0->ODU2, ODU1->ODU2, and ODUflex->ODU2.
Cross-layer mapping reduces the number of mapping layers and simplifies the relationship between client and server trails, facilitating management.
Cross-layer mapping enables flexible bandwidth usage. For example, when seven 1.25G timeslots of an ODU2 pipe are occupied by ODUflex services, the remaining 1.25G bandwidths can be used by cross-layer mapping from ODU0 to ODU2.
Assign consecutive indicates that layer-by-layer mapping of services is performed from lower rates to higher rates, for example, ODU0->ODU1->ODU2 and ODU1->ODU2.
The Assign random mode is recommended.
When two line boards are interconnected on the WDM side, they must have the same setting of the ODU Timeslot Configuration Mode parameter.

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