3750 vlan config not saved when interface range

[mtandrew]

I have having issues saving a vlan switchport access configuration. It says it is a known issue but there is no viable solution. I have attached the error message in the attachment.

[vb10]

Hello,

As I see in attached document, you are trying to config "switchport access vlan 1"

This is default command and that's why it's not displayed in config. All the interfaces by default are in VLAN1.

You can check actual VLAN by command:

show interface <#> switchport - there will be information about access VLAN

Also you could try "show run all", which should show all config, including default setting.

[mtandrew]

I changed it back to vlan 20 for the meantime.

Name: Gi3/0/15
Switchport: Enabled
Administrative Mode: static access
Operational Mode: static access
Administrative Trunking Encapsulation: negotiate
Operational Trunking Encapsulation: native
Negotiation of Trunking: Off
Access Mode VLAN: 20
Trunking Native Mode VLAN: 1 (default)
Administrative Native VLAN tagging: enabled
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 Native VLAN tagging: enabled
Administrative private-vlan trunk encapsulation: dot1q
Administrative private-vlan trunk normal VLANs: none
Administrative private-vlan trunk associations: none
Administrative private-vlan trunk mappings: none
Operational private-vlan: none
Trunking VLANs Enabled: ALL
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL

[vb10 · Accepted solution]

So, here you can check current access VLAN:

Name: Gi3/0/15

<...>

Access Mode VLAN: 20 <<<

Currently it's 20. If you need access VLAN1, you can configure either:

switchport access vlan 1 ; or

no switchport access vlan 20 

In this situation both commands a equal, they both put the port to default VLAN1

After that "show interface <#> switchport" should show

Access Mode VLAN: 1

And interface should operate in VLAN1.

But command "switchport access vlan 1" still will not be in running config, since it's default vlan, so it's expected.

As I mentioned, you can check "show run all", probably you will see this command there.