How to query the card SN on an AR router

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The method of querying the card SN on an AR router is as follows:
Run the display elabel command to query the BarCode field of the slot corresponding to the card.

Other related questions:
Method of querying card models on an AR router
Run the display device command or the display elabel command on an AR router to query component types of the router. The card names obtained using these two commands may be different, because the card names obtained by running the display device command are planned in advance but electronic labels are unique IDs of the cards and will not change with software upgrades.

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 .

How do I query the MIB of an AR router?
The MIB can be queried through the following Web site: http://support.huawei.com/onlinetoolsweb/infoM/index.do?domain=1&lang=en&topicType=mib

How do I query the Log of an AR router?
The Log can be queried through the following Web site: http://support.huawei.com/onlinetoolsweb/infoM/index.do?domain=1&lang=en&topicType=log

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