VOICE and DATA VLANS

[akhanwaterloo]

Hi

switch 3650g - 24 ports

configuration

port 1 is data VLAN uplink from HP3500 router

port 2 is voice VLAN uplink from HP3500 router

ports 3-23 access ports with data 301 vlan  and voice 310 vlan respectively.

dhcp scope options set to get voice vlan 310 info from dhcp for the nortel ip phone

Nortel IP phone 1140E gets the correct ip address from 192.168.6.0 subnet

when using ip phone data port to connect a PC, PC is also getting the correct ip address from 172.16.8.0 subnet.

on cisco 3650 switch

when i run show int status

Nortel IP phone is connected to int 11 it shows VLAN 301 against that 

Gi0/1     DATA VLAN UPLINK   connected    301        a-full a-1000 10/100/1000BaseTX
Gi0/2     VOICE VLAN UPLINK  connected    310        a-full a-1000 10/100/1000BaseTX
Gi0/3     User Access Ports  notconnect   301          auto   auto 10/100/1000BaseTX
Gi0/4     User Access Ports  notconnect   301          auto   auto 10/100/1000BaseTX
Gi0/5     User Access Ports  notconnect   301          auto   auto 10/100/1000BaseTX
Gi0/6     User Access Ports  notconnect   301          auto   auto 10/100/1000BaseTX
Gi0/7     User Access Ports  notconnect   301          auto   auto 10/100/1000BaseTX
Gi0/8     User Access Ports  notconnect   301          auto   auto 10/100/1000BaseTX
Gi0/9     User Access Ports  notconnect   301          auto   auto 10/100/1000BaseTX
Gi0/10    User Access Ports  notconnect   301          auto   auto 10/100/1000BaseTX
Gi0/11    User Access Ports  connected    301        a-full a-1000 10/100/1000BaseTX

is this correct or it should be VLAN 310 on int 11

Please advise

Thanks

Asif

[Giuseppe Larosa · Accepted solution]

Hello Asif,

the use of the voice vlan provides correct results with Cisco IP phones that learn about voice vlan in CDP frames sent out switch port.

In your case or you put port g0/11 in vlan 311 manually using

switchport accesss vlan 311  (but this means no PC connected downstream the nortel phone or it will take an IP address in voice clients IP subnet)

or you need to find out what changes are needed to be able to make the device able to use vlan 311 as voice vlan.

possible ways are: the use of standards based LLDP instead of CDP or appropriate settings in DHCP servers so that using an attribute the phone may later take an IP address in voice vlan.

Hope to help

Giuseppe