CiscoIOS XE
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How to fix issues with VLAN configuration on Cisco IOS XE devices?
How do I fix issues with VLAN configuration on Cisco IOS XE devices?
CiscoIOS XE
Answers
To fix VLAN configuration issues on Cisco IOS XE devices, follow these steps:
- Verify VLAN Configuration: Use the show vlan command to verify the current VLAN configuration and ensure all VLANs are correctly defined.
- Check Interface Assignments: Ensure that interfaces are correctly assigned to the appropriate VLANs using the show running-config command.
- Inspect Trunk Ports: Verify that trunk ports are correctly configured to allow VLAN traffic using the show interfaces trunk command.
- Review VTP Settings: If using VLAN Trunking Protocol (VTP), ensure that VTP settings are consistent across all switches in the network.
- Check for Misconfigurations: Look for any misconfigurations or typos in the VLAN configuration commands.
- Restart Interfaces: Sometimes, restarting interfaces can resolve VLAN issues. Use the shutdown and no shutdown commands to restart interfaces.
- Update Firmware: Ensure your device is running the latest firmware, as updates can fix known bugs and issues.
- Consult Cisco Support: If the issue persists, contact Cisco support for further assistance.
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