topic Re: SDA Voice VLAN - Port assignment query in Software-Defined Access (SD-Access)

SDA Voice VLAN - Port assignment query

davidjohnredfern — Tue, 19 Dec 2023 03:20:14 GMT

Hi All,

We are using the SDA Voice VLAN 2046 for IP Phones and found DNAC would not let me assign other ports (such as the Voice GW) to the Voice VLAN, so I had to assign them to the data VLAN instead. Is there a good way to do this? Would using a 'Trunk' port work?

I am also migrating a server to SDA that is trunking a VM into the Voice VLAN streaming multicast to IP Phones, and may make it easier if I can keep it in the same VLAN as the Phones.

Thanks

Re: SDA Voice VLAN - Port assignment query

Andrii Oliinyk — Tue, 19 Dec 2023 06:43:56 GMT

Hi
can u share here what u r trying to do? Voice vlan is always on the ports of type User Devices (Ip-phone, computer, laptop)
#sho deri int Gi1/0/14..
interface GigabitEthernet1/0/14
switchport mode access
switchport voice vlan 2046
...

It's also always on the ports with type of trunk

Re: SDA Voice VLAN - Port assignment query

davidjohnredfern — Tue, 19 Dec 2023 07:19:31 GMT

Sorry I am trying to use the GUI host onboarding tab to manually assign switch ports for other UC devices such as Voice Gateways into the same voice VLAN the IP Phones are dynamically assigned to, however the GUI only lets me select data IP pools for the 'switchport access vlan' I need for these device types.

Re: SDA Voice VLAN - Port assignment query

Andrii Oliinyk — Tue, 19 Dec 2023 07:36:03 GMT

ok. i guess u expected that gui will let u to select vlan 2046 under Vlan Name (Data), right?

Re: SDA Voice VLAN - Port assignment query

davidjohnredfern — Tue, 19 Dec 2023 22:37:23 GMT

Correct, the the VLAN name (VOICE) is used for setting the 'switchport voice vlan', that only works for IP Phones via CDP.

So the question is, it is possible to place other UC devices into the same Voice VLAN as the IP Phones? So far I have been putting any Voice Gateways migrated into the Data VLAN.

Re: SDA Voice VLAN - Port assignment query

jalejand — Thu, 04 Jan 2024 08:32:19 GMT

Looks like you want to put a voice vlan in a port in th form of "sw access vlan x", being x the voice VLAN that DNA Center can only configur as "switchport voice vlan x", with no option to configure it as data vlan, is that correct?

If that is the case, you can always configure the port as trunk and setting up the native vlan (with a template) to be the one for the voice vlan. (basically, expecting untagged traffic from that voice vlan)

Re: SDA Voice VLAN - Port assignment query

tsolli — Tue, 14 Jan 2025 12:25:33 GMT

is this still the way to do it? I have a fax that needs to be put in vlan 2046 as primary data-vlan.

Re: SDA Voice VLAN - Port assignment query

paboer — Tue, 14 Jan 2025 12:59:02 GMT

As far as I know this is an option, other possibility but depending on the brand and type of phone to create a "normal" data VLAN and assign the correct VLAN with ISE to put all the phones, faxed etc in the correct VLAN.

Re: SDA Voice VLAN - Port assignment query

Andrii Oliinyk — Tue, 14 Jan 2025 13:27:45 GMT

there is a lot of headache when u need to assign VLAN 2046 reserved in DNAC for device-class=voice (essentially demanding u to have on the port with Voice Vlan configured from UI device with minitrunk support where VLAN 2046 frames will be tagged by definition of the "switchport voice vlan" 2046 or whatever else VLAN u select for Voice Domain purpose). the easiest way is to just drop both AAA & "switchport voice vlan" from port & assign 2046 as "switchport access vlan". But i'm continuously asking ppl why do u Guys need FAX or conference device w/o voice vlan support to be landad in that specific purpose VLAN 2046? Doesnt routing or LISP/VXLAN work for needed traffic to be delivered from/to such a devices?