Configuring ports in Cisco switches

For the test I will configure ports on Cisco Catalyst 6509-E.

I’ll give an example of setting Access of the port (the traffic goes only over one specified vlan without a tag):

interface GigabitEthernet1/1
description TEXT
switchport
switchport access vlan 226
switchport mode access
no shutdown

Now I’ll give an example of setting Trunk of the port (traffic goes through one or several vlan with a tag only):

interface GigabitEthernet1/2
description TEXT
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 207,228
switchport mode trunk
no shutdown

And the third option, Hybrid port (traffic goes only on one vlan without a tag and on one or several vlan with a tag):

interface GigabitEthernet1/3
description TEXT
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 226
switchport trunk allowed vlan 207,226
switchport mode trunk
no shutdown

To specify parameters for several ports at once:

interface range GigabitEthernet1/1-24

We prohibit automatic switching of the port to access or trunk mode:

interface range GigabitEthernet1/1-24
switchport nonegotiate
exit

See also my article – Configuring link aggregation on the Cisco Catalyst 6500

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