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Beginner

Which is difference between Operational VLAN Id & Admin. VLAN id in 7940

Hi,

Which is the difference between Operational VLAN Id & Admin. VLAN id in ip phone 7940?

Who controls it?

The switch or the Call Manager?

Can the modification of this parameter affect the attached pc?

Thanks in advance!

MP

4 REPLIES 4
Participant

Re: Which is difference between Operational VLAN Id & Admin. VLA

Best explanation I could find was here (http://www.cisco.com/univercd/cc/td/doc/product/voice/c_ipphon/sip7960/sipadm2/maintain.htm#xtocid151964), then scroll down a bit. Even though it is for a SIP phone I think it is still relevant.

Rick

spy Beginner
Beginner

Operational VLAN Id

Operational VLAN Id

Auxiliary Virtual Local Area Network (VLAN) configured on a Cisco Catalyst switch in which the phone is a member.

If the phone has not received an auxiliary VLAN, this option indicates the Administrative VLAN.

If neither the auxiliary VLAN nor the Administrative VLAN are configured, this option is blank.

The phone obtains its Operational VLAN Id via Cisco Discovery Protocol (CDP) from the switch to which the phone is attached. To assign a VLAN ID manually, use the Admin VLAN Id option.

Admin. VLAN Id

Auxiliary VLAN in which the phone is a member.

Used only if the phone does not receive an auxiliary VLAN from the switch, ignored otherwise.

1. Scroll to the Admin. VLAN Id option, press the Edit softkey, and then enter a new Admin VLAN setting.

2. Press the Validate softkey and then press the Savesoftkey.

Beginner

Re: Operational VLAN Id

For clarity, if that's the case, I assume that the operational vlan is tagged, whereas the admin vlan is not?

Highlighted
VIP Collaborator

Re: Operational VLAN Id

Both are tagged. It's a matter of which one the phone uses. If you can't run CDP and therefore assign an Admin VLAN manually, the phone will use the Admin VLAN. If the phone has an Admin VLAN manually assigned but also learns of one via CDP/LLDP, then it will use the learned VLAN as displayed in the "Operational VLAN ID" field.

Maren

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