Aggregation interruption function and its application scenario

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FAQ-What is the aggregation interruption function used for? When should this function be enabled

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ROADM and its application scenarios
The ROADM technology achieves reconfiguration of wavelengths by adjusting the pass-through or block status of the wavelengths, making the static distribution of wavelength resources flexible and dynamic. ROADM with the U2000 can remotely and dynamically adjust the status of wavelength adding/dropping and passing through for a maximum of 80 wavelengths. Huawei ROADM technology can be applied to the following scenarios: 1-degree optical-layer grooming: Generally it applies to a terminal node and services are not interrupted during expansion. 2-degree optical-layer grooming: It achieves service transmission in two directions. 3-degree optical-layer grooming: It achieves service transmission in three directions. 4-degree optical-layer grooming: It achieves service transmission in four directions. 9-degree optical-layer grooming: It achieves service transmission in nine directions.

Application scenario of the LCK insertion function
The LCK insertion function is provided for users to lock channels. You can determine whether to enable the LCK insertion function as required. When the LCK insertion function is enabled, client-side signal transmission is stopped and LCK signals are inserted to the WDM side. If LCK insertion is enabled for the upstream board, the ODUk_PM_LCK alarm will occur on the downstream board. When TCMn monitoring is enabled for the downstream board, the ODUk_TCMn_LCK alarm will also be reported.

QinQ and its application value
As Ethernet technologies are widely used on carrier networks (metro Ethernet networks), the standard VLAN defined in IEEE 802.1q alone cannot completely distinguish between users or isolate a large number of users. This is because the 12-bit VLAN tag field defined in IEEE 802.1q identifies a maximum of only 4096 VLANs. To expand VLAN tags in quantity, the QinQ technology is developed. It adds another 802.1q tag to a packet that already carries an 802.1q tag. With this technology, the system supports up to 4096 x 4096 VLANs. As metro Ethernet develops and a greater variety of services are deployed, there are more scenarios in which QinQ double tags can be applied. The inner tag (C-VLAN) indicates the user, and the outer tag (SVLAN) indicates the service.

What are the application scenarios of CES
The application scenarios of CES include routine management, alarm notification and capacity adjustment.

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