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6509 add vlan to trunk

VTP, Portfast, Spanning Tree and all the other switch related stuff.

6509 add vlan to trunk

Postby Guest » Sat Dec 25, 2010 3:20 am

I have a trunk port that I need to add another vlan to and I am wondering the command to do so?  Right now the particular vlan vlan 5 is being pruned. My next question is will this be service impacting? Can I do it during the day or will it disrupt the trunk port at all?  Thanks


6509#show int gigabitEthernet 7/46 switchport

Name: Gi7/46

Switchport: Enabled

Administrative Mode: trunk

Operational Mode: trunk

Administrative Trunking Encapsulation: dot1q

Operational Trunking Encapsulation: dot1q

Negotiation of Trunking: Off

Access Mode VLAN: 2 (VLAN0002)

Trunking Native Mode VLAN: 1 (default)

Voice VLAN: none

Administrative private-vlan host-association: none

Administrative private-vlan mapping: none

Administrative private-vlan trunk native VLAN: none

Administrative private-vlan trunk encapsulation: dot1q

Administrative private-vlan trunk normal VLANs: none

Administrative private-vlan trunk private VLANs: none

Operational private-vlan: none

Trunking VLANs Enabled: 1,4,7,8,20

Pruning VLANs Enabled: 2-1001

Capture Mode Disabled

Capture VLANs Allowed: ALL



Re:6509 add vlan to trunk

Postby Guest » Sat Dec 25, 2010 3:56 am



To add a new vlan to the trunk


switchport trunk allowed vlan add xx


make sure to use "add"


adding a new vlan to the trunk should not cause any issues.  You can do it any time.





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