Planet SGS-5220-24P2X User Manual page 201

 Traffic Class
 Mode
 Port Security
 Port Discovery
Protocol
Indicates the Voice VLAN traffic class. All traffic on Voice VLAN will apply this
class.
Indicates the Voice VLAN port mode.
Possible port modes are:
Disabled: Disjoin from Voice VLAN.
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Auto: Enable auto detect mode. It detects whether there is VoIP
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phone attached to the specific port and configures the Voice VLAN
members automatically.
Forced: Force join to Voice VLAN.
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Indicates the Voice VLAN port security mode. When the function is enabled, all
non-telephone MAC address in Voice VLAN will be blocked 10 seconds. Possible
port modes are:
Enabled: Enable Voice VLAN security mode operation.
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Disabled: Disable Voice VLAN security mode operation.
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Indicates the Voice VLAN port discovery protocol. It will only work when auto
detect mode is enabled. We should enable LLDP feature before configuring
discovery protocol to "LLDP" or "Both". Changing the discovery protocol to "OUI"
or "LLDP" will restart auto detect process. Possible discovery protocols are:
OUI: Detect telephony device by OUI address.
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LLDP: Detect telephony device by LLDP.
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Both: Both OUI and LLDP.
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User's Manual of SGS-5220 Series