EtherSwitch Problem

Answered Question
May 11th, 2008

I have a lab setup where I have a 3845 router with a 4-port POE HWIC. I have a problem getting a phone to trunk to its pc port. I've tried a 7911 and 7961 IP phone. I assigh a voice vlan and an access vlan to the same port and it doesn't work at all. I read some documentation saying I had to configure the port as a trunk so I tried that and the voice vlan worked but the data vlan didnt pass through to the pc port. I hooked up a 2960 to the router and used the same commands and got the data and voice vlans working. Is this a bug with the EtherSwitch models? Does anyone know of a workaround?

I have this problem too.
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Correct Answer by mahmoodmkl about 8 years 8 months ago

Hi

can u try by configuring the data vlan as the native vlan on that port.

Thanks

Mahmood

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Correct Answer
mahmoodmkl Sun, 05/11/2008 - 22:04

Hi

can u try by configuring the data vlan as the native vlan on that port.

Thanks

Mahmood

Giuseppe Larosa Wed, 08/13/2008 - 08:49

Hello Brian,

etherswitch modules support pre-standard Cisco proprietary PoE.

when connected to the etherswitch port was the phone powered on correctly via PoE ?

when adding the trunk have you allowed on the trunk the voice and data vlan ?

I would try this:

int fasx/0

switchport

switchport trunk enc dot1q

switchport trunk allowed vlan 10,20

switchport mode trunk

switchport voice vlan 20

Hope to help

Giuseppe

Brian Meade Wed, 08/13/2008 - 15:32

The phones powered correctly via the PoE. Setting the native vlan to be the data vlan is what fixed the problem. Thanks alot guys!

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