Difference between cascading mode and non-cascading mode

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TOM boards can work in cascading or non-cascading mode. In cascading mode, the total client-side service rate for each TOM board must be less than or equal to 2.5 Gbit/s. In non-cascading mode, the total client-side service rate for each TOM board must be less than or equal to 10 Gbit/s. When working in cascading mode, each TOM board can map a maximum of eight client-side services into one ODU0 or ODU1 signal. When working in non-cascading mode, it can map a maximum of four client-side services into one ODU0 or ODU1 signal.
To map more than four client-side services into one ODU1 or ODU0 signal, the cascading mode is recommended.
To map four or less client-side services into one ODU1 or ODU0 signal, the non-cascading mode is recommended.

Other related questions:
Why the system displays a message indicating that the participant does not support asymmetric continuous presence when ViewPoint 8660 MCUs are cascaded?
When MCUs are cascaded, asymmetric continuous presence is not supported. You need to configure the MCU as symmetric continuous presence by running the system-view bnrm vid-sendrecv-mod 2 command.

Cascading relationship between ALM ports
ALMO1 and ALMO2 ports have the same definition, and they are used for output and cascading respectively. ALMO3 and ALMO4 ports have the same definition, and they are used for output and cascading respectively. For example, if the ALMO1 port is used to output alarm signals, the ALMO2 port can be used as an alarm/cascading port and be connected to an ALMO1 port in another subrack.

Provisioning modes of eBackup VMs at the cascading layer in public cloud scenarios
In public cloud scenarios, use FusionCompute to provision eBackup VMs. The URL for logging in to FusionCompute is: http://VRM node IP address

Difference between the subcard mode and board mode
The subboard mode refers to the current working mode of a subboard. The board mode refers to the current working mode of a board. Different types of boards and subboards support different types of working modes. Many commands are used to switch the subboard mode and board mode. These commands start with set service-mode. To set the subboard mode, you can run the set service-mode card or set service-mode slot card command in the system view. To set the board mode, you can run the set service-mode slot command in the system view.

How do I display only the lower-level MCU instead of sites under the lower-level MCU in sites viewed by the upper-level RM in a manual cascaded conference?
In a manual cascaded conference, you can set whether to report cascaded site information in the configuration file. The SpecReportCascadeSite parameter specifies whether to report cascaded site information. Value 0 indicates no and value 1 indicates yes. SpecReportCascadeSite=0 If you choose to report cascaded site information, you can select the cascades sites to display in the RM conference control list.

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