Difference between the NG WDM V1R1 and the NG WDM V1R2 .
1. The NG WDM V1R1 is a non-ASON version whereas the NG WDM V1R2 is an ASON version.
2. The NG WDM V1R2 requires ROADM boards and every site requires OSCs. If the initial configuration of a network meets this requirement, you can directly use the NG WDM V1R2 or smoothly upgrade the NG WDM V1R1 to the NG WDM V1R2. If a network does not meet the WDM ASON configuration requirement, hardware should be added to provide the ASON function.
3. The NG WDM V1R1 can be directly upgraded to the NG WDM V1R2. During the upgrade, the ASON software license and the NG WDM V1R2 software package need to be loaded. Make sure that the NG WDM V1R2 software package is released later than the NG WDM V1R1 software package used in the original network.