Voice Vlan not work

[Joli Martinez]

I have a 3750G fiber distribution switch that I just replace.  None of the switched connected to the fiber switch have working phones.  All other phones in the campus work.

here is the interface config for the uplink to the core switch.

the phones are on vlan 10 and from the switch I can ping the voice equipment. 

<code>

interface GigabitEthernet1/0/1

 description UPLINK to FOX052202LT

 switchport access vlan 17

 switchport trunk encapsulation dot1q

 switchport trunk native vlan 17

 switchport mode trunk

</code>

[Rajeev Sharma]

Hey,

Make sure you have vlan 10 configured on this replacement switch. Check with command 'show vlan brief' and it should show vlan 10 and list the ports associated to it. Also change the uplink configuration to:

interface GigabitEthernet1/0/1

description UPLINK to FOX052202LT

switchport trunk encapsulation dot1q

switchport mode trunk

switchport trunk native vlan 17

HTH.

Regards,

RS.

[Joli Martinez]

This is just a distribution switch VLAN17 is the trunk port.  the 6500 on the other side does have vlan 10 configured on it.  I have changed the config above and added vlan10 to the switch, but phones are still not comming up.

[Rajeev Sharma]

Hey,

Paste the 'show interface trunk' and 'sh vlan id 10' output from this switch.

Regards,

RS.

[Joli Martinez]

<code>

Port        Mode             Encapsulation  Status        Native vlan

Gi1/0/1     on               802.1q         trunking      17

Gi1/0/2     on               802.1q         trunking      17

Gi1/0/3     on               802.1q         trunking      17

Gi1/0/4     on               802.1q         trunking      17

Port        Vlans allowed on trunk

Gi1/0/1     1-4094

Gi1/0/2     1-4094

Gi1/0/3     1-4094

Gi1/0/4     1-4094

Port        Vlans allowed and active in management domain

Gi1/0/1     1,3,17

Gi1/0/2     1,3,17

Gi1/0/3     1,3,17

Gi1/0/4     1,3,17

Port        Vlans in spanning tree forwarding state and not pruned

Gi1/0/1     1,3,17

Gi1/0/2     1,3,17

Gi1/0/3     1,3,17

Gi1/0/4     1,3,17

</code>

Acad_Library_3508#sh vlan id 10

VLAN id 10 not found in current VLAN database

Acad_Library_3508#

<code>

[Rajeev Sharma · Accepted solution]

Hey,

You need to add vlan 10 to this switch. Go to global configuration mode and add:

#vlan 10

#exit

As from last command output:

Acad_Library_3508#sh vlan id 10

VLAN id 10 not found in current VLAN database

Its telling that vlan 10 is not configured on this switch.

HTH.

Regards,

RS.