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For questions about Virtual LANs (VLANs) which are used to divide what otherwise would be a single OSI layer-2 broadcast domain into multiple, logical OSI layer-2 broadcast domains.

5 votes

vlan line protocol up/down

In order for a VLAN interface to be up, the VLAN needs to be configured on a access port (Directly connected hosts) or the VLAN needs to be allowed over a trunk. … Mind you that the interface or trunk need to be up for the VLAN interfaces to come up You can configure access ports assigned to those VLAN's and use the command no keepalive command to bring those ports …
frankguthrie's user avatar
0 votes

switchport mode

IF you only need 1 vlan on that link, a trunk is not necessary. …
frankguthrie's user avatar