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Switchport voice vlan rule, Switchport voice vlan security, Switchport voice vlan – LevelOne GTL-2691 User Manual

Page 1152: Security, Rule

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C

HAPTER

39

| VLAN Commands

Configuring Voice VLANs

– 1152 –

switchport voice

vlan rule

This command selects a method for detecting VoIP traffic on a port. Use

the no form to disable the detection method on the port.

S

YNTAX

[no] switchport voice vlan rule {oui | lldp}

oui - Traffic from VoIP devices is detected by the Organizationally

Unique Identifier (OUI) of the source MAC address.
lldp - Uses LLDP to discover VoIP devices attached to the port.

D

EFAULT

S

ETTING

OUI: Enabled

LLDP: Disabled

C

OMMAND

M

ODE

Interface Configuration

C

OMMAND

U

SAGE

When OUI is selected, be sure to configure the MAC address ranges in

the Telephony OUI list (see the

voice vlan mac-address

command. MAC

address OUI numbers must be configured in the Telephony OUI list so

that the switch recognizes the traffic as being from a VoIP device.

LLDP checks that the “telephone bit” in the system capability TLV is

turned on. See

"LLDP Commands" on page 1285

for more information

on LLDP.

E

XAMPLE

The following example enables the OUI method on port 1 for detecting

VoIP traffic.

Console(config)#interface ethernet 1/1

Console(config-if)#switchport voice vlan rule oui

Console(config-if)#

switchport voice

vlan security

This command enables security filtering for VoIP traffic on a port. Use the

no form to disable filtering on a port.

S

YNTAX

[no] switchport voice vlan security

D

EFAULT

S

ETTING

Disabled

C

OMMAND

M

ODE

Interface Configuration