[Prime infrastructure 2] Switchport voice vlan

Hello,
A device in Device Work Center > Feature Configuration > interface does not show up its voice vlan configuration.
Likewise, in EDIT mode, there is nothing related to voice vlan config.
Is this normal ?
Regards.
V.

As to get the VLAN information, the file in Cisco devices Flash : Vlan.dat is fetced, and if PI fails to do so, it gives this error. As it is a file in flash, PI needs to send it over to Server itself using TFTP.
If TFPT is somehow not working between Server and devices, it may throw this error.
Is it happening with all the devices or some perticular platform?
If with all the device, you need to check if there is any Firewall blocking TFTP access to devices.
Also, you can check if TFTP service on CPI is working properly by command ncs status.
If service is affected, try to restart service - service tftp restart Or you can restart the PI Machine itself.
-Thanks
Vinod
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Similar Messages

There is no "Switchport Voice Vlan" command on SF300-24P !!!

Hello everyone
I am in an urgent problem :S
I have a Small Business SF300-24P
I have created two vlans one data and one voice
but i have not assigned them to the ports and I am not sure how to do so since there's no "switchport voice vlan" command under the interface !!
here are the configurations
btw the switchport mode is still trunk as it is by default
Thanks in advance
switch0a1172#
switch0a1172#
switch0a1172#sho run
config-file-header
switch0a1172
v1.2.9.44 / R750_NIK_1_2_584_002
CLI v1.0
file SSD indicator encrypted
ssd-control-start
ssd config
ssd file passphrase control unrestricted
no ssd file integrity control
ssd-control-end cb0a3fdb1f3a1af4e4430033719968c0
vlan database
vlan 13,20
exit
voice vlan id 20
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________
hostname switch0a1172
username cisco password encrypted c8e383b1dd7be99f878a387d87766e875404e0b3 priv
lege 15
ip telnet server
interface vlan 13
name "VLAN13"
interface vlan 20
name VOICE
switch0a1172#

Hi Sandy,
You need:
switchxxxxxx(config)# voice vlan id 20
and smart ports should do the rest.
for your reference: http://www.cisco.com/c/dam/en/us/td/docs/switches/lan/csbms/sf30x_sg30x/administration_guide/CLI_300.pdf?mdfid=283019666
Regards,
Aleksandra

Switchport voice vlan : untagged / none / dot1p

Hope anyone can shed light on this.
When "switchport voice vlan <keyword>" is configured, a Cisco IP Phone will be instructed via CDP how to deal with voice frames. According to CCNP BCMSN Official Certification Guide, a diagram suggests that when using "untagged" as keyword, IP Phone will use a Special 802.1Q trunk case so that 802.1p bits can be set. It also shows a table which seems to contradict the diagram as the CoS bits column indicates no 802.1p bits are set.
So, can any one tell me the difference in terms of 802.1Q, 802.1p, and native vlan how each mode:untagged/dot1p goes about?
My understanding is that with dot1p IP Phone will use 802.1Q using VLAN 0 (null or "native" vlan) merely for frames to be prioritized using 802.1p bits. As for "untagged" mode, I read somewhere that IP Phone would also use 802.1Q vlanid=1025, again, just for 802.1p bits to be set. But "untagged" seems to me like "none" when it comes to how the IP PHone will forward its voice frames.
Thank you!

My understanding is the following:
with dot1Q - it will trunk using dot1q encapsulation
with dot1p - it will use ISL encapsulation
with untagged - native VLAN configured on the port.
This is how it works:
This is how PC at the back of IP Phone works:
Once native is configured switch will communicate with PC with no vlan tags but will add NATIVE VLAN TAG when packets are forwarded to the LAN. SO when you configure NATIVE VLAN - this is the VLAN that switch add the tag into packets.
At the same time once tagged packets with NATIVE VLAN arrive to switch port destined to PC, switch will remove trunking enxapsulation (otherwise packets will be discarded by PC) and will send packets to PC
Similar rule is applicable to IP Phone.
Regards,
Vakhtang

Cisco Prime Infrastructure not detecting Nexus VLANs

Hello,
we recently added 2 Nexus 5010 to our prime Infrastructure 2.0.
Once synchronization is completed, the device shows as Managed.
When looking through the device details, everything seems to be ok, just when looking into the VLANs tab, it says:
"none detected".
In fact, there are quite a lot of vlans on this device.
Did anyone have a similar problem?
Thanks,
Jörg

Hi Jorg,
I have checked and confirmed that Unfortunately this feature is not supported for NEXUS . I mean the VLAN information.
and I think "port-channels" are also not supported.
Thanks-
Afroz
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Applying command switchport voice vlan

Hi everyone,
At customer setup they have implemented VOIP and as they have to meet the deadlines for this project and they are in rush they want all the switch ports where users are connected should be configured for voice vlan.
As we have server,printers and other devices also connected to these switches.
if i configure int range fa0/1 - 48 with voice vlan command will it cause any issue to devices connected to the switch other than user PC?
Regards
MAhesh

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Posting
Any issues to ports w/o a VoIP phone but configured with a voice VLAN? Well, broadcast traffic on the VoIP VLAN will go to each port configured with a voice VLAN, but on a VoIP VLAN I wouldn't expect there to be too much of this traffic. So it shouldn't be significant.

Prime Infrastructure 2.1 - Fetch VLAN Configuration - command failed

Hi,
i am installing the system on a customer's site.
i've noticed that most of the devices configured on the PI have resulted in error in the Configuration Archive with this error:
Fetch VLAN Configuration - command failed.
i checked that the tftp service on the PI is enabled.
i tried manually executing from a device: copy flash:vlan.dat tftp://PI_IP and couldnt manage to do so.
i also tried manually to do it to another tftp server and it worked.
i dont see any FW drops.
does anyone have any idea how to troubleshoot this?
thanks in advance!

As to get the VLAN information, the file in Cisco devices Flash : Vlan.dat is fetced, and if PI fails to do so, it gives this error. As it is a file in flash, PI needs to send it over to Server itself using TFTP.
If TFPT is somehow not working between Server and devices, it may throw this error.
Is it happening with all the devices or some perticular platform?
If with all the device, you need to check if there is any Firewall blocking TFTP access to devices.
Also, you can check if TFTP service on CPI is working properly by command ncs status.
If service is affected, try to restart service - service tftp restart Or you can restart the PI Machine itself.
-Thanks
Vinod
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802.1x and Voice VLAN

I had read articles on cco, and I believed for the same switch port we can have 802.1x configure and the voice vlan configure. It mean the IP phone is connect to the switch port with 802.1x configured, but the phone will not autheticate, only the workstation connect to phone data port will get authenticate.
I had configured 802.1x and test with notebook logon and able to access the network. Now I would like to test the notebook attached to IP phone data port, and the phone connect to switch port configure with 802.1x. But I failed to add voice vlan commmand. Why ?
interface GigabitEthernet9/48
description temporary port
switchport
switchport access vlan 12
switchport mode access
no ip address
dot1x port-control auto
spanning-tree portfast
CIG01-ENT-SW1(config-if)#switchport voice vlan 14
Command rejected: Gi9/48 is Dot1x enabled port.

Using IEEE 802.1x Authentication with Voice VLAN Ports
A voice VLAN port is a special access port associated with two VLAN identifiers:
?VVID to carry voice traffic to and from the IP phone. The VVID is used to configure the IP phone connected to the port.
?PVID to carry the data traffic to and from the workstation connected to the switch through the IP phone. The PVID is the native VLAN of the port.
In single-host mode, only the IP phone is allowed on the voice VLAN. In multiple-hosts mode, additional clients can send traffic on the voice VLAN after a supplicant is authenticated on the PVID. When multiple-hosts mode is enabled, the supplicant authentication affects both the PVID and the VVID.
A voice VLAN port becomes active when there is a link, and the device MAC address appears after the first CDP message from the IP phone. Cisco IP phones do not relay CDP messages from other devices. As a result, if several Cisco IP phones are connected in series, the switch recognizes only the one directly connected to it. When IEEE 802.1x authentication is enabled on a voice VLAN port, the switch drops packets from unrecognized Cisco IP phones more than one hop away.
When IEEE 802.1x authentication is enabled on a port, you cannot configure a port VLAN that is equal to a voice VLAN.
Waht kind of switch do you have? In 3550 I can configure the port for both vvid and pvid:
interface FastEthernet0/1
switchport access vlan 3
switchport mode access
switchport voice vlan 2
no ip address
dot1x port-control auto
spanning-tree portfast
end
Nevertheless, as the statement above indicates, the port will need to be configured for multi-host in order the PC behind the phone get autehntication:
under the interface configure "dot1x host-mode multi-host"
Nevermind, I just realized that you might have a 5600 running native, checking the configuration guide and realese notes it does not looks like dot1x and vvlan can play together in that platform.

802.1x / dot1x Authentication, including Voice-Vlan and Guest-Vlan

Hello,
i have tried to configure a dot1x based Authentication.
With an single host including guest-vlan, everything works fine.
But i want to use an IP-Phone (wich is every times authenticated) and behind the Phone an Client.
Is there a possible solution? And unfortunately IP-Phones are Avaya-Phones.
i have just tried so...
interface GigabitEthernet0/4
switchport access vlan 121
switchport mode access
switchport voice vlan 200
authentication event fail action authorize vlan 99
authentication event server dead action authorize vlan 121
authentication event server alive action reinitialize
authentication host-mode multi-host
authentication order dot1x
authentication port-control auto
authentication periodic
authentication violation restrict
dot1x pae authenticator
dot1x timeout quiet-period 10
dot1x timeout tx-period 1
spanning-tree portfast
Thanks, for any possible solution!

unfortunately because they are Avaya phones, the easy answer CDP-Bypass fails in this instance. When you plug in the phone, the switch will assume it's the 'single host' for this port, and restrict the port due to the authentication for the phone failing. Maybe you can just hard-code the voice-vlans on each phone, but that could get tedious depending on the amount of phones.
I believe there is a DHCP option you can pass back that indicates the phone should be running on vlan 200, but for this to work you'd also need to set up a pre-auth ACL that would allow DHCP to work in the unauthorized state. I think it's 147 off the top of my head.
Another solution (which isn't what you originally wanted, but it would work) is to just use multi-domain instead of single-host, and authenticate both the phone and the PC. The raduis server should be able to distinguish between what is configured as a phone and what is a host, and will send back the appropriate vlan if configured correctly.
What are using for a radius server?

Cisco Layer 3, Voice, & VLAN

I have a vSphere 5.5 install and I'm in the process of a network upgrade in preparation for a VOIP implementation. The Switch hardware I'm using is a stack of Cisco 3850 Layer 3 switches and I've been going in circles on getting vlan traffic to work correctly. Hopefully someone can point me in the right direction.
I have one NIC connected to the switch (10GB fiber) that will handle all traffic for the esxi host (except for management). VLAN ID is set to None (0) and load balancing is set to Route based on originating virtual port.
I have 2 subnets, 10.1.0.0/16 (data & management, VLAN 1) and 10.10.1.0/24 (Voice, VLAN 10)
On the host I have a Win 2012 R2 server that will be a VOIP PBX host. It must be able to communicate with the IP phones (VLAN 10) and other servers (VLAN 1).
The switches will do the intervlan routing.
Finally my question - Can anyone give me some hints on how to set up the interface on the Cisco for the 10GB fiber connection from my host? Actual port settings would be extremely helpful. Anything I'm doing at the vmware end that I should be doing differently?

In case anyone comes across this in a search, here's what I ended up with, 1st the Cisco switch:
switchport trunk allowed vlan 1,10
switchport mode trunk
switchport nonegotiate
switchport voice vlan 10
macro description cisco-switch
spanning-tree portfast
spanning-tree link-type point-to-point
The virtual switch I set to all vlan IDs and Route based on originating virtual port.

Cisco voice vlans w/ nortel VOIP system

Hello everyone,
I am going to segment a network with a Nortel VOIP system. Right now, the network is completely flat with PCs plugged into the back of the nortel phones. I would like to set up a voice vlan for the nortel phones but am not sure if voice vlans will work w/ non-cisco phones (cdp). Please provide me some insight if you can. Thanks!

If your are Using Recent Cisco Switches it is quite easy.
Using 4006 SUP III core switches or 3560 PSE's should be okay.
If you have Nortel Phase II phones they can also be powered by the 802.3 cisco switches with no probs.
Anyway set the switchport mode to switchport voice vlan. Set spanning tree portfast and configure qos as you see fit on the port. Configure the voice vlan on the switch eg switchport voice vlan 111. You may need to configure the port to switchport mode dynamic desriable as well. Some older switches may have problems but you can enable trunking to cheat and then a default vlan for the pc on the switchport
As regards to the phones when the phone reboots and you enter the configuration mode via flipping the 4 soft keys. You should then see the vlan option and configure the same vlan number on the phone as the cisco switch eg 111.
The phone should then register again without any problems. All i2002/i2004 firmware for last 2 years has the vlan option. I looked after about 400 nortel phones all on cisco switches of various ages with only minor setting up issues.
Best of luck
Simon

Window DHCP Server is not allocting IP to Voice Vlan

Hi,
I HAVE 3560 Switch, Over that two vlan configure Data & Voice respectively. Voice id Vlan 1 and Data Id Vlan 2.Routing is done on this switch and work as L3
DHCP Server is member of Data Vlan which is connected to another 3560 Switch L2. DHCP Server is reachable.On that both vlan configured.
Switch Port configure fr both Vlan ( Switchport access vlan 2 , Switchport voice vlan 1, Switchport mode access)
WHILE Connect any pc to port DHCP server assign ip frm Data Pool while Cisco Ip phones are not getting IP. OPTION 150 is configured in DHCP.
Over both interface IP Helper is configured and pointing to DHCP Server.
For testing point configure DHCP service on switch with voice pool range ;at that moment Cisco IP phone got the IP fron switch DHCP.
Now not able to understand why window dhcp server not assigning ip for Voice.
Both Vlan are in different subnet and having / 24.
Please guide

Hi,
Checked all configuration in network,apply packet tracer and found DHCP not responding on DHCP Req.
Replace DHCP server and now working fine. :)

Phone 7961 solution without implementing "switchport voice" immediately at switch port

Is there any
Phone 7961 solution without implementing "switchport voice" immediately at switch port but at the switch before the switch which is directly connected to the phone?
(Please see attached diagram. )

No. "switchport voice vlan" works only if configured on the swtch directly connected to the phone.

302-08MP Voice Vlan issue

Hi,
I have a 302-08Mp attached to my network, it is plugged directly into a C3560G, however when i plug a phone into this switch i get a 'configuring ip' message up on the phone. The voice vlan is set identical to the 3560 but in the logs i get an error message stating
%CDP-W-VOICE_VLAN_MISMATCH: voice VLAN mismatch detected on interface gi1.
Can anyone help me solve this issue?
Thanks in advance

Tom,
Sorry for teh delay i needed to get someone at the remote location i could trust to reboot the unit. The voice vlan is 20 and the rest run on vlan 1
the 302 is set as
interface gigabitethernet1
macro description "switch | no_switch | switch | no_switch | switch | no_switch
| switch | no_switch | switch | no_switch | switch | no_switch"
exit
macro auto disabled
macro auto processing type host enabled
macro auto built-in parameters ip_phone_desktop $max_hosts 10 $native_vlan 1
and runs sw version 1.1.2.0
the 3560 is set
interface GigabitEthernet0/3
description Link to SW3
power inline never
switchport trunk encapsulation dot1q
switchport mode trunk
switchport voice vlan 20
srr-queue bandwidth share 10 10 60 20
srr-queue bandwidth shape 10 0 0 0
queue-set 2
mls qos trust cos
auto qos voip trust interface GigabitEthernet0/3
description Link to SW3
power inline never
switchport trunk encapsulation dot1q
switchport mode trunk
switchport voice vlan 20
srr-queue bandwidth share 10 10 60 20
srr-queue bandwidth shape 10 0 0 0
queue-set 2
mls qos trust cos
auto qos voip trust
Thanks

Phone not picking up Voice VLAN

Hi All,
Strange issue that's just started happening with a few 6921 phones.
On our cisco switch when port is configured with data and voice vlan, the phone picks up an IP address from the data vlan and in turn doesn't register. It's as if it doesn't see the voice vlan. As soon I remove the data vlan and have voice vlan only on the port, phone picks up IP from the voice network and registers against the CME. This all worked before on the same ports, nothing changed. It just suddenly stopped working.
Anyone seen this before?
Thanks

Hi,
Ok first output is when the phone doesn't work. VLAN 7 is the data vlan and 81 is Voice on this LAN.
interface FastEthernet2/0/39
description IP and Data Port
switchport access vlan 7
switchport mode access
switchport voice vlan 81
srr-queue bandwidth share 10 10 60 20
srr-queue bandwidth shape 10 0 0 0
priority-queue out
mls qos trust device cisco-phone
mls qos trust cos
auto qos voip cisco-phone
macro description cisco-phone
spanning-tree portfast
spanning-tree bpduguard enable
service-policy input AutoQoS-Police-CiscoPhone
Output below is when the phone does work.
interface FastEthernet2/0/39
description IP and Data Port
switchport mode access
switchport voice vlan 81
srr-queue bandwidth share 10 10 60 20
srr-queue bandwidth shape 10 0 0 0
priority-queue out
mls qos trust device cisco-phone
mls qos trust cos
auto qos voip cisco-phone
macro description cisco-phone
spanning-tree portfast
spanning-tree bpduguard enable
service-policy input AutoQoS-Police-CiscoPhone
end
And this did work previously. Only 6921 phones affected.

Voice VLAN vs Data VLAN

Hi,
I have a call manager connected to switch with three VLANS configured, one voice vlan and two data vlan,
int f0/1-2
switchport mode access
switchport access VLAN 200
int f0/3-23
switchport mode access
switchport access VLAN 300
switchport voice VLAN 100
intf0/24
switchport mode trunk
switchport trunk encapsulation dot1q
int g0/0.100
encapsulation dot1q 100
ip address 172.100.1.1 255.255.255.0
int g0/0.200
encapsulation dot1q 100
ip address 172.200.1.1 255.255.255.0
int g0/0.300
encapsulation dot1q 100
ip address 172.300.1.1 255.255.255.0
I am able to access the call manager if I assign it an IP under data VLAN range, but if I assign IP under voice VLAN( 172.100.1.0/24 ) i am not able to access the call manager, If i assign an IP address to the call manager under voice VLAN I am not able to ping even the default gateway 172.100.1.1
What may be the issue.
Regards,
Shaggy

Hi,
try this.
int g0/0.100
encapsulation dot1q 100
ip address 172.100.1.1 255.255.255.0
int g0/0.200
encapsulation dot1q 200
ip address 172.200.1.1 255.255.255.0
int g0/0.300
encapsulation dot1q 300
ip address 172.300.1.1 255.255.255.0
hth
Muammer

[Prime infrastructure 2] Switchport voice vlan

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