CX912 working mode configuration

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For details, see Fabric OS Native and AG Modes in the CX912 User Guide.
? C00 version:
http://support.huawei.com/enterprise/en/doc/DOC1000040279/?idPath=7919749|9856522|21782478|19955021|19961380
? C10 version:
http://support.huawei.com/enterprise/en/doc/DOC1000036343/?idPath=7919749|9856522|21782478|19955021|19961380

Other related questions:
How to configure the working mode of a combo interface
You can run the combo-port { auto | copper | fiber } command to configure the working mode of a combo interface. By default, a combo interface works in auto mode, in which the combo interface automatically works as an optical or electrical interface. -When the auto mode is specified, the system checks whether the combo optical interface has an optical module installed, and selects the interface working mode as follows: -When the electrical interface is not connected, the combo interface works as an optical interface if the combo optical interface has an optical module installed. -When the electrical interface is connected using a network cable and the combo interface is Up, the combo interface works as an electrical interface even if the combo optical interface has an optical module installed. However, the combo interface works as an optical interface after the device restarts. -When the electrical interface is connected using a network cable and the combo interface is Down, the combo interface works as an optical interface if the combo optical interface has an optical module installed. In summary, when the auto mode is specified and the combo optical interface has an optical module installed, the combo interface works as an optical interface after the device restarts. -You can forcibly specify the working mode of the combo interface based on the remote interface type. If the local combo electrical interface is connected to a remote electrical interface, configure the combo interface to work in copper mode. If the local combo optical interface is connected to a remote optical interface, configure the combo interface to work in fiber mode.

How to check the work mode of a card on an AR router
Run the display workmode command in any view to check the work mode of cards installed in all slots or specified slots.

Can 802.11n devices work only in 802.11n mode? Can 802.11n devices work in 802.11bg mode
802.11n devices can work in multiple modes including 802.11bg mode.

Can two interface communicate with each other if one interface works in auto-negotiation mode and the other works in forcible mode
This configuration is not recommended. When this configuration is used, the interface working in auto-negotiation mode changes to half-duplex state according to the auto-negotiation requirements. This reduces the network utilization efficiency and may cause other problems. It is strongly recommended that the local and remote interfaces work in the same mode. That is, they both work in auto-negotiation mode or forcible mode.

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