How do I query the ESN of an AR

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The Equipment Serial Number (ESN) of an AR is unique. When applying for a license, provide the ESN of the AR.
You can run the display esn command on the AR to check the ESN.

Other related questions:
How do I query the ESN of a TE series endpoint?
To query the ESN of a TE series endpoint, perform the following steps: 1. Log in to the web interface and choose Help > Version. 2. On the Version page that is displayed, view the SN of the endpoint.

ESN query
Log in to FusionInsight Manager, choose System > Cluster Management > License Management > License, and view the ESN.

ESN of the FusionInsight software
The Equipment Serial Number (ESN) uniquely identifies a set of equipment for license authorization purposes. You can log in to FusionInsight Manager and choose System > License to view the ESN of a FusionInsight product.

How do I view the ESN of the SMC?
View the ESN of the SMC2.0 as follows: Log in to the SMC2.0 web interface, choose Help > License, and view License ESN on the license page. You can also use the EsnMaker to copy the license ESN file of the SMC2.0 to the SMC2.0 server to view the ESN.

How to view the serial number of an S series switch
Serial numbers of S series switches fall into two categories: - Equipment serial number (ESN): indicates the serial number of a switch. The ESN of a modular switch is also called the chassis serial number. - Serial number (SN) of each component: indicates the serial number of a card, subcard, optical module, power supply, or fan module. Select one of the following methods to obtain the ESN or SN of a switch or component: Method 1: View SN labels. Equipment or chassis SN: View the SN label attached to the device panel. (There is a slight difference between label locations on different models. For example, the label can locate on the front, rear, or top of the chassis.) Card serial number: View the SN label on the panel (upper-right or upper-left corner) or PCB (remove and check the card). Method 2: Run a command. Run the display elabel command to view the electronic label of each component. The BarCode field indicates the serial number. Method 3: Through the web system. When the web system is enabled on a device, view the chassis serial number through the web system. EasyOperation web system (supported only in V200R005 and later versions) Log in to a device through the web system and click Monitor on the toolbar to enter the Monitor page. You can view device information, including the chassis serial number. Web system classical version Log in to a device through the web system and click Device Summary on the toolbar to view device information, including the chassis serial number. Click the following links for details about how to query the ESN or SN of a switch or component: - For the S12700, see "Information Collection > Obtaining the Equipment Serial Number" in S12700 Troubleshooting - Preliminary . - For the S7700 and S9700, see "Information Collection > Obtaining the Equipment Serial Number" in S7700&S9700 Troubleshooting - Preliminary . - For the S1720, S2700, S3700, S5700, and S6700, see "Information Collection > Obtaining the Equipment Serial Number" in S1720&S2700&S3700&S5700&S6700 Troubleshooting - Preliminary . - For the S9300, see "Information Collection > Obtaining the Equipment Serial Number" in S9300 Troubleshooting - Preliminary . - For the S600-E, see "Information Collection > Obtaining the Equipment Serial Number" in S600-E Troubleshooting - Preliminary .

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