Querying the equipment serial number (ESN)

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For the USG6000, you can run the display esn command to view the ESN of an MPU.
For the USG9500, you can run the display esn all command to view the ESNs of all components.

Other related questions:
How to obtain the AC equipment serial number (ESN)
Equipment Serial Number (ESN): uniquely identifies a device. When applying for a new license, you must provide the AC's ESN. The ESN bound with the license must be consistent with that of the AC; otherwise, the license is in Trial state. Check the ESN of an AC or an AP using either of the following methods: - Run the display esn command to check the ESN of the AC and AP. - Check the ESN on the barcode label attached on the surface of the device. The corresponding field of the AC is SN, and that of the AP is PROD ID. Each AC or AP has a unique ESN.

What does the U1900 equipment serial number (ESN) relate to?
The U1900 license is associated with the SN of the subrack. Replacing the main control board or other boards does not affect the ESN and therefore does not require a new license.

Method used to obtain the Equipment Serial Number (ESN) of OceanStor T Series
You can obtain the ESNs of OceanStor T Series as follows: Method 1: Check the device label. Method 2: Log in to the ISM and obtain the ESNs from the basic device information.

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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