PVID 0 on HP Procurve 5412 and no untagged vlan 1

[MichaelRicardo]

Hello,

configuration a new switch and adding ports to vlans

I am little confused with - no untagged vlan on a port - I am seeing pvid of 0 - i assume it vlan 0 and how is this different from vlan 1?

can someone explain?

har-core-01(vlan-222)# [b]display port trunk[/b]

Interface PVID VLAN passing
A1 0 2, 10
A2 1 2, 10, 16, 40, 44, 48, 52, 81, 100, 222, 400, 630, 666
A3
A4

B1
B2 0 2, 10, 21-22, 40, 44, 48, 52, 81, 102, 222, 400, 666
B3 2 21-22, 52
B4
B5 1 2, 10, 16, 40, 44, 48, 52, 81, 100, 102, 222, 400, 630, 666
B6
B7 1 2, 10, 32, 40, 48, 52, 100, 222, 251-254, 400

Select allOpen in new window

and

note below - port A1 is no untagged to vlan 1 - thus defaulted to vlan 0

vlan 1

name "DEFAULT_VLAN"

no untagged

A1,B2-B4,B6,B9-B24,C1-C5,C7-C11,C13-C15,C18-C19,C22-C23,D1-D11,D13-D17,D19,D21,D24,E3,E11-E14,E16-E24,F1-F2,F7-F9,F11,F13-F24,G1,G3-G6,G9,G11-G13,G15,G17-G20,G22,G24,H1,H3-H8,H11-H24,Trk2

untagged

A2-A4,B5,B7,C6,C12,C16-C17,C20,C24,D12,D18,D20,D22-D23,E1-E2,E4-E9,F3-F6,F10,G2,G7-G8,G10,G14,G21,G23,H9-H10,Trk1

no ip address

exit

vlan 2

name "MANAGEMENT"

untagged B3,B6,B9-B13,B17-B19,B22-B23,C1,C13,D2,D19,D21,E22-E23,G5,G24,H12,H16,H19

tagged

A1-A2,B2,B5,B7,C6,C12,C16-C17,C20,C24,D12,D18,D20,D22-D23,E1-E2,E4-E9,F3-F6,F10,G2,G7-G8,G10,G14,G23,H9-H10,Trk1

ip address 172.31.2.3 255.255.255.0

exit

[EricAtHP · Accepted solution]

A PVID of 0 just indicates that the port doesn't carry untagged traffic. It only carries tagged VLANs.

Regarding the "no untagged..." statement. It is only seen on VLAN 1 since that is the default VLAN and is just used to indicate that the port is not a member of the default VLAN.

There is an achitectual difference between the ProCurve/ProVision/Aruba OS based switches and others, specifically Comware based and Cisco based. On Comware and Cisco switches, configuration is port (or interface) based, meaning that you go to the interface context to configure VLAN membership. ProCurve/ProVision/Aruba OS based switches are VLAN based, meaning you go to the VLAN context and define which ports carry that VLANs traffic and define if it is tagged or untagged.

Does that help?

[16again]

Although config file on procurve switches shows all port<->vlan assignments under the VLAN........you can still edit these assignments in interface configuration mode! 

This is less error prone, as I found out the hard way.

[MichaelRicardo]

many thanks - much appreciated.