I am trying to tag the TenGigabiteEthernet1/1 with several vlans on a Cisco 3560. The commands seem simple enough but the tagged vlans do not show after I run it. See below
int TenGigabitEthernet1/1
switchport trunk encapsulation dot1q
switchport mode trunk
switchport trunk allowed vlan add 1,5,10,15,18,100
exit
show vlan
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Then you will see which VLANs are tagging on which interfaces.