Yealink SIP-T2 Series Administrator's Manual page 40

Administrator's Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
Values 1-Enabled, the IP phone will attempt to determine its VLAN ID through LLDP.
Default 1
Web UI Network->Advanced->LLDP->Active
T54S/T52S/T48S/T48G/T46S/T46G/T29G:
Menu->Advanced (default password: admin) ->Network->LLDP->LLDP Status
Phone UI
T42G/T42S/T41P/T41S/T40P/T40G/T27G/T23P/T23G/T21(P) E2/T19(P) E2/CP920:
Menu->Settings->Advanced Settings (default password: admin) ->Network->LLDP->LLDP Status
Parameter static.network.lldp.packet_interval
It configures the interval (in seconds) that how often the IP phone sends the LLDP (Linker Layer Discovery
Protocol) request.
Description
Note: It works only if "static.network.lldp.enable" is set to 1 (Enabled).
Permitted
Integer from 1 to 3600
Values
Default 60
Web UI Network->Advanced->LLDP->Packet Interval (1~3600s)
T54S/T52S/T48S/T48G/T46S/T46G/T29G:
Menu->Advanced (default password: admin) ->Network->LLDP->Packet Interval
Phone UI
T42G/T42S/T41P/T41S/T40P/T40G/T27G/T23P/T23G/T21(P) E2/T19(P) E2/CP920:
Menu->Settings->Advanced Settings (default password: admin) ->Network->LLDP->Packet Interval
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If you change this parameter, the IP phone will reboot to make the change take effect.
CDP Configuration
CDP (Cisco Discovery Protocol) allows IP phones to receive and/or transmit device-related information from/to directly
connected devices on the network that are also using the protocol, and store the information about other devices.
If the CDP feature is enabled on IP phones, the IP phones will periodically advertise their own information to the dir-
ectly connected CDP-enabled switch. The IP phones can also receive CDP packets from the connected switch. If the
VLAN configurations on the IP phones are different from the ones sent by the switch, the IP phones will perform an
update and reboot. This allows you to connect the IP phones into any switch, obtain their VLAN IDs, and then start
communications with the call control.
The following table lists the parameters you can use to configure CDP.
Parameter static.network.cdp.enable
Description It enables or disables the CDP (Cisco Discovery Protocol) feature on the IP phone.
0-Disabled
Permitted
Values
1-Enabled, the IP phone will attempt to determine its VLAN ID through CDP.
Default 1
Web UI Network->Advanced->CDP->Active
Phone UI T54S/T52S/T48S/T48G/T46S/T46G/T29G:
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<y0000000000xx>.cfg
<y0000000000xx>.cfg