10-24-2002 07:45 AM - edited 03-12-2019 09:17 PM
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
10-25-2002 10:51 AM
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
04-17-2016 12:06 AM
07-26-2019 04:32 PM
For clarity, if that's the case, I assume that the operational vlan is tagged, whereas the admin vlan is not?
07-27-2019 05:26 AM
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
08-16-2020 01:41 AM
I have configured the Catalyst 2960 switch port as follows:
vlan 100
name VoIP
vlan 20
name PCs
)#int g0/1
switchport mode trunk
switchport trunk allowed vlan 20,100
switchport trunk native vlan 20
end
**************
Admin VLAN in IP phone set to 100
some IP phones connected successfully and others did not!!
the operational vlan in disconnected phones remain blank and the ip phone get IP from native vlan.
I tried to remove native vlan but the ip phone did not get IP.
can you help
08-16-2020 06:24 AM - edited 08-18-2020 06:33 AM
The trunk port still needs to identify the voice vlan for the phone. Add "switchport voice vlan 100" to the port config.
(Misread the question....never mind.)
If you post again in the future, a piece of advice: You will get a better response from the community if you post an original question rather than commenting on an old thread.
Maren
08-18-2020 04:57 AM
08-18-2020 06:32 AM
No, sorry, not on IOS XE. That's what I get for answering a question fast without digging in....
Maren
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