Voice vlan issue with SX20

[lfcooh]

Our company have 2 vlan on every switch, data and voice vlan so when I turn off voice vlan on SX20, it cannot get ip from dhcp. My solution is remove voice vlan on the port switch. How can I do with this problem?

[Acevirgil de Ocampo]

Hi,

If you turn off VLAN Voice mode on the SX20 of course it cannot get IP from DHCP Voice VLAN.

Could you tell what you want to achieve?

Br,

ACEVIRGIL

[Elias Sevilla Duarte · Accepted solution]

This is merely related to CDP. CDP is used for management traffic, which serves within its parameters, voice VLAN. If CDP is set to auto in the SX20, and the switches use CDP, then the switch pushes the voice VLAN automatically, thus the SX20 will attempt to get antes IP of the voice VLAN. I would recommend to turn off CDP, and try again.

Elias

[Elias Sevilla Duarte]

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@lfcooh wrote:

Our company have 2 vlan on every switch, data and voice vlan so when I turn off voice vlan on SX20, it cannot get ip from dhcp. My solution is remove voice vlan on the port switch. How can I do with this problem?

---

This is merely related to CDP. CDP is used for management traffic, which serves within its parameters, voice VLAN. If CDP is set to auto in the SX20, and the switches use CDP, then the switch pushes the voice VLAN automatically, thus the SX20 will attempt to get antes IP of the voice VLAN. I would recommend to turn off CDP, and try again.

Elias