VLAN Voice and Data

[moussa.malqui1]

Hi All,

I use CallManager Express, i want to separate Voice and data traffic. i should create 6 VLAN Voice and 6 Vlan Data because i have 6 departement i want to affect for each departement a VLAN Data and VLAN voice. how can i configure that in CME? i should create many subinterface and affect for each interface a vlan data and voice or what??

thanks in advance

Regards,

MM

[Diego Chvz]

Hi Moussa,

It does not make sense that you create 6 voice vlans if your departments are in the same location since at the end these vlans need to have inter vlan routing to communicate each other. I recommend create 6 different data vlan for your departments as you need and a single vlan for voice purposes, and yes you achieve this by configuring sub interfaces.

You may want to take a look at this:

http://www.cisco.com/c/en/us/support/docs/voice-unified-communications/unity-express/62609-tdcmecue.html

[moussa.malqui1]

Hi dchavezs,

Thanks for your reply. it is requested in the tender specifications to separate VLAN voice because we use @IP 10.100.30.0/24 so we can use just 254 Phones, but i have 300 Phones to define on the network.

VLAN Voice 1 : 10.100.30.0/24

VLAN Voice 2 : 10.100.40.0/24

VLAN Voice 3 : 10.100.50.0/24

VLAN Voice 4: 10.100.60.0/24

VLAN Voice 5 : 10.100.70.0/24

VLAN Voice 6 : 10.100.80.0/24

Regards,

MM

[Diego Chvz]

Mousa, 

Ok, I understand, so you can adjust the subnet mask as well, whatever you decide,  take in account that it's always better to make your configuration as cleanest as you can, since this will be helpful in the future for troubleshooting.

[moussa.malqui1]

Hi dchavezs, thanks for your help, yes i understand what you mean by that i already reflect to this solution but i have to create this VLAN voice because i should respect the specifications required. i reflect to do this configuration below but i don't know what @IP I should do in "defalut-router". what you think about this configuration to create 6 VLAN Voice. thanks in advance

ip dhcp pool Voice
network 10.100.0.0 255.255.0.0
option ip 10.100.100.1
default-router 10.100.x.x 

interface fastethernet 0/0.30
encapsulation dot1q 30
ip address 10.100.30.1 255.255.255.0 

interface fastethernet 0/0.40
encapsulation dot1q 40
ip address 10.100.40.1 255.255.255.0 

interface fastethernet 0/0.50
encapsulation dot1q 50
ip address 10.100.00.1 255.255.255.0 

interface fastethernet 0/0.60
encapsulation dot1q 60
ip address 10.100.60.1 255.255.255.0 

interface fastethernet 0/0.70
encapsulation dot1q 70
ip address 10.100.70.1 255.255.255.0 

interface fastethernet 0/0.80
encapsulation dot1q 80
ip address 10.100.80.1 255.255.255.0 
default-router 10.100.x.x 

interface fastethernet 0/0.90
encapsulation dot1q 90
ip address 10.100.90.1 255.255.255.0 

[Diego Chvz]

Hi Moussa,

I did not quite understand your question.

[firestormnet · Accepted solution]

Hi.

Are you sure your CME can handle 300 phones?

If you want to have 6 Voice VLANs then you need to have 6 DHCP Device pools for phones and 6 DHCP Data pools then do inter-vlan routing.

I would suggest to use 1 Voce VLAN and 1 DHCP pool for it but using mask /23 instead of /24.

Cheers

[moussa.malqui1]

Hi, 

thanks Firestormnet for your helps i think that what i will do , i should creat 6 DHCP pools, but if i take this solution what is ip address  sould put in "source-address" because i have 6 voice subinterface  

voice register global
mode cme
source-address x.x.x.x port 5060
timeouts interdigit 3
max-dn xxx
max-pool xxx.........etc 

thanks in advance

[moussa.malqui1]

Hi Diego,

Thanks for your reply. i'm looking to create 6 vlan voice for 6 department but according to firestormnet (see the reply below) i should create 6 dhcp device pool for phone. 

regards,

MM