Native VLAN
Tags #native #vlan #native-vlan
When configuring trunk ports on a switch, the native VLAN is a configuration parameter on that port that tells the switch on which VLAN any untagged frames that arrive on that trunk port will be placed. The native VLAN by default is set to VLAN 1, however this can be changed using the following interface command.
SW1(config-if)#switchport trunk native vlan 10
The native VLAN must be configured correctly on both ends of the trunk, otherwise there may be unpredictable behavior and possible security issues.
Additional useful notes regarding the Native VLAN can be found here:
- Native VLAN Traffic Flow on Trunk Ports
- Native VLANs and untagged frames
- Native VLAN Best Practices
- VLAN - Native VLAN on a router on a stick
Links
https://networklessons.com/switching/802-1q-native-vlan-cisco-ios-switch
Links to this page:
- Cisco Switch Port Configuration for IP Phone
- EtherChannel - prerequisites for bundling
- Native VLAN Best Practices
- Native VLAN Traffic Flow on Trunk Ports
- Native VLANs and untagged frames
- STP Broken (BKN) State and Port Inconsistencies
- VLAN - Native VLAN on a router on a stick
- VLAN control frames
- Wireless AP FlexConnect mode switchport mode