JustinBMak
asked on
Digium IP D40 Phones - Cisco Voice VLAN-ing
Hello All,
I have 3 Cisco 3850's LAN Based Software (POE+) switches. I am not 100% familiar with Cisco products, more like 40% familiar and have been managing this network for several years with great success. We recently, for the first time, purchased a VoIP system and I need to get the phones set up. I have put the Digium Phone System on VLAN-55 (Phone System) and the phones (all of them) support CDP and LLDP on them. On the "Small Business Switches" (ex: SG500/SG300, etc.) they have what is called a "Voice-VLAN" where when the switch see's the first 6 octets of a mac-address it auto adds it to VLANX (ex: VLAN-55). On my Cisco 3850 however, it does not (obviously) because it's a full blown OS vs the stripped down version on the SG models.
So instead of me walking around and configuring roughly 60+ phones, is there a way to configure the Cisco 3850 POE+ switches (which phones will be plugged directly in through out the office) to program it and know that when it see's the first six octets of this mac-address to auto add it to this VLAN (ex: VLAN-55)?
I have 3 Cisco 3850's LAN Based Software (POE+) switches. I am not 100% familiar with Cisco products, more like 40% familiar and have been managing this network for several years with great success. We recently, for the first time, purchased a VoIP system and I need to get the phones set up. I have put the Digium Phone System on VLAN-55 (Phone System) and the phones (all of them) support CDP and LLDP on them. On the "Small Business Switches" (ex: SG500/SG300, etc.) they have what is called a "Voice-VLAN" where when the switch see's the first 6 octets of a mac-address it auto adds it to VLANX (ex: VLAN-55). On my Cisco 3850 however, it does not (obviously) because it's a full blown OS vs the stripped down version on the SG models.
So instead of me walking around and configuring roughly 60+ phones, is there a way to configure the Cisco 3850 POE+ switches (which phones will be plugged directly in through out the office) to program it and know that when it see's the first six octets of this mac-address to auto add it to this VLAN (ex: VLAN-55)?
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ASKER
Hi Kevinhsieh:
Quick question, since "technically" the "voice-vlan" feature is not an option on the Cisco 3850's like how it is on the Cisco SG Models. Is there a way to configure the "Voice-VLAN" feather on the 3850's? I have not configured the option above (it's the weekend and the switch is not in production yet). But I thought I would just ask while I was thinking about it.
Here is a link to a video on the Voice-VLAN on the SG models:
https://supportforums.cisco.com/video/12305226/sg500-series-switch-auto-voice-vlan-configuration-qos
Quick question, since "technically" the "voice-vlan" feature is not an option on the Cisco 3850's like how it is on the Cisco SG Models. Is there a way to configure the "Voice-VLAN" feather on the 3850's? I have not configured the option above (it's the weekend and the switch is not in production yet). But I thought I would just ask while I was thinking about it.
Here is a link to a video on the Voice-VLAN on the SG models:
https://supportforums.cisco.com/video/12305226/sg500-series-switch-auto-voice-vlan-configuration-qos
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ASKER
Thank you sir. I'm sure I'm making it more complicated than what it really is, I will be working on this tomorrow and will let you and future EE people know how it goes.
ASKER
Hello Again,
So the above did not work, all my phones got an IP from the "data network" (VLAN-15). I have the above config in as you instructed and double checked the phones to make sure LLDP is turned on, which it is.
So, is there additional config I'm missing?
So the above did not work, all my phones got an IP from the "data network" (VLAN-15). I have the above config in as you instructed and double checked the phones to make sure LLDP is turned on, which it is.
So, is there additional config I'm missing?
Well, my Avaya phones use the voice VLAN setting from the switch. I think my Shoretel phones get the vlan from a DHCP attribute. What does the phone documentation say?
ASKER
Thanks for the reminder EE
So kevinhsieh was correct, the issue why it wasn't working originally (and it was my fault) was due to the fact I guess I forgot I enabled lldp (which I swore I did).
Once I enabled LLDP (Link Layer Discovery Protocol), the phones auto picked up an IP on VLAN55 (Voice Vlan) and auto configured them selves as they should (as long as the port is trunked correctly).
This forum here also assisted and reminded me to enable LLDP, which again I thought was enabled. I'm only posting this link to help with QOS (if needed):
http://forum.asteriskpbx.com/viewtopic.php?f=38&t=85209
Thanks again kevinhsieh.
So kevinhsieh was correct, the issue why it wasn't working originally (and it was my fault) was due to the fact I guess I forgot I enabled lldp (which I swore I did).
Once I enabled LLDP (Link Layer Discovery Protocol), the phones auto picked up an IP on VLAN55 (Voice Vlan) and auto configured them selves as they should (as long as the port is trunked correctly).
This forum here also assisted and reminded me to enable LLDP, which again I thought was enabled. I'm only posting this link to help with QOS (if needed):
http://forum.asteriskpbx.com/viewtopic.php?f=38&t=85209
Thanks again kevinhsieh.
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Interface range g1/0/1-48
Switchport voice vlan 55
End
The interface range allows you to specify multiple interfaces all at once, instead of doing each one individually.
The voice VLAN command tells the switch to tell the phones to use vlan 55. I have used is successfully with Avaya and ShoreTel phones. The switch communicates with the phones via LLDP to set the VLAN.