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CISCO SWITCHES FOR SMALL and MEDIUM BUSINESS

Introducing the next generation of Cisco Small and Medium Business Switches. Cisco is refreshing its SMB Switch portfolio. Click here  to learn more.


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sg350 vlan mapping full configuration

Hi everyone, I am trying to create a vlan mapping tunnel on a cisco sg350 switch, and I cant seem to figure out the full configuration.

From the documentation about the configuration,

https://www.cisco.com/c/en/us/support/docs/smb/switches/cisco-350-series-managed-switches/smb5822-configure-vlan-mapping-on-a-switch-through-the-cli.html?dtid=osscdc000283 

I understood the following:

vlan -mapping is done when packet enters interface, so vlan-mapping must be done on UNI interface, facing local network, and which must  be in trunk mode, and have the S-VLAN as an allowed VLAN, but I could not find any mention about the uplink interface configuration, I must match C-VLANS with 1 S-VLAN, I initially tried to do vlan-mapping on uplink but no succes so far.

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is the switchport mode vlan-mapping to be used on any interface? uplink/downlink or only plain trunk mode?