How do I verify that an interface is added to a VLAN

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Run the display vlan vlan-id command and verify that the interface is listed in the command output.


For example, interface Ethernet2/0/0 is added to VLAN 10.

 display vlan 10
* : management-vlan
---------------------
VLAN ID Type Status MAC Learning Broadcast/Multicast/Unicast Property
--------------------------------------------------------------------------------
10 common enable enable forward forward forward default
-------------------
Untagged Port: Ethernet2/0/0
-------------------
Active Untag Port: Ethernet2/0/0
-------------------
Interface Physical
Ethernet2/0/0 UP

Other related questions:
Add an interface to different VLANs
An access interface cannot be added to different VLANs. Run the port default vlan command to configure a default VLAN. A trunk interface can be added to multiple VLANs by running the port trunk allow-pass vlan command. A hybrid interface can be added to multiple VLANs in untagged or tagged mode by running the port hybrid untagged vlan or port hybrid tagged vlan command.

Methods for remotely verifying the installation of DCMs
1. It is time- and labor-consuming to verify the installation of DCMs onsite. You can verify whether DCMs are correctly installed by remotely checking the optical power at each point of the OAU board. The OAU board provides five optical ports for reporting the optical power. Port 3 (RDC optical port) detects the intermediate input optical power. Port 5 (TDC optical port) detects the intermediate output optical power. 2. Query the optical power of the OAU from east to west to calculate the optical power difference between optical port 5 and optical port 3, which is 1.6 dB. Query the optical power of the OAU from west to east to calculate the optical power difference between optical port 5 and optical port 3, which is 5.3 dB. These indicate that the DCM (C1) is installed from east to west and DCM (C3) is installed from west to east. Both DCMs are correctly installed and no onsite rectification is required. 3. Training must be provided to hardware installation personnel before the installation. Installation personnel must install DCM modules according to the cabinet fiber connection diagram of the engineering design, and pay attention to the pigtails from subracks in the DCM frame at the bottom of the cabinet. These pigtails have been labeled with the type of DCM modules they are to be connected to.

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