Why do MAC address entries need to be synchronized between boards and what are functions of real-time and periodic synchronization

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Synchronizing MAC address entries ensures that most Layer 2 packets are forwarded based on MAC addresses, reducing broadcasts.

The functions of real-time synchronization and periodic synchronization are:

-Real-time synchronization responds to MAC address changes quickly, but packet loss may occur during synchronization due to the limited processing capacity of the system.

-Periodic synchronization synchronizes MAC address entries at an interval of several seconds. It works with real-time synchronization to ensure that all MAC addresses are synchronized and prevents aging of MAC address entries synchronized from other boards.

Other related questions:
Why do MAC address entries need to be synchronized between boards and what are functions of real-time and periodic synchronization
Synchronizing MAC address entries ensures that most Layer 2 packets are forwarded based on MAC addresses, reducing broadcasts. The functions of real-time synchronization and periodic synchronization are: -Real-time synchronization responds to MAC address changes quickly, but packet loss may occur during synchronization due to the limited processing capacity of the system. -Periodic synchronization synchronizes MAC address entries at an interval of several seconds. It works with real-time synchronization to ensure that all MAC addresses are synchronized and prevents aging of MAC address entries synchronized from other boards.

What are functions of real-time and scheduled synchronization of MAC addresses of the AR router
MAC address entry synchronization ensures that Layer 2 packets are forwarded based on MAC addresses, reducing broadcast storms. - Real-time synchronization responds to MAC address changes quickly, but packet loss may occur during synchronization due to the limited processing capability. - Periodic synchronization synchronizes MAC address entries at the second level. It is used with real-time synchronization to ensure that all MAC addresses can be synchronized and prevents aging of MAC address entries synchronized from other cards.

Is the AD synchronization a real-time synchronization?
No. The AD server synchronizes data at an interval.

How long does it take to synchronize the data between the active and standby boards of U1900?
The first data synchronization takes about 10 minutes.

Synchronization modes between NMS time and NE time on WDM products
Synchronization modes between NMS time and NE time: With the time synchronization function, the NE time is kept consistent with the NMS time. This allows the NMS to record the correct time at which alarms occur and the correct time at which abnormal events are reported by NEs. When NEs report alarms and abnormal events to the NMS, the NMS records the time of alarms and events based on the NE time. If the NE time is incorrect, the generation time of alarms recorded on the NMS is also incorrect, which may cause troubles in fault locating. The same case happens to the generation time of abnormal events that are recorded in the NE security log. To ensure the accuracy of NE time, the NMS provides two time synchronization modes with the following servers: the NMS server and the standard NTP server. Note: The Web LCT improves the accuracy of NE time by synchronizing the NE time with the NMS time. If synchronization with the NMS server is applied, all NEs use the NMS server time as the standard time, and can be synchronized with the NMS server manually or automatically. The NMS time refers to the time of the workstation where the NMS server resides or system time of the NMS server. This synchronization mode is easy and applies to a network with relatively low requirement on time accuracy. If synchronization with the standard NTP server is applied, all NEs and the NMS are synchronized with the standard NTP server automatically. The standard NTP server can be the NMS server or a dedicated time server. This synchronization mode makes the NE time and NMS time accurate to 1/1000,000,000 seconds and applies to a network that has a high requirement on time accuracy.

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