CDP (Cisco Discovery Protocol) allows the phones to receive and/or transmit device-related information from/to directly connected devices on the local network.

When CDP feature is enabled on the phones, the phones periodically advertise their own information to the directly connected CDP-enabled switch. The phones can also receive CDP packets from the connected switch and obtain their VLAN IDs.

The following table lists the parameters you can use to configure CDP.

Parameter static.network.cdp.enable
Description It enables or disables the CDP feature.
Permitted Values 0-Disabled
1-Enabled, the phone attempts to determine its VLAN ID through CDP.
Default 1
Web UI Network > WAN > CDP > Active
Phone UI Menu > Advanced > Network > CDP > CDP Status
Parameter static.network.lldp.packet_interval
Description It configures the interval (in seconds) that how often the phone sends the CDP request.
Note: It works only if “static.network.cdp.enable” is set to 1 (Enabled).
Permitted Values Integer from 1 to 3600
Default 60
Web UI Network > WAN > CDP > Packet Interval (1~3600s)
Phone UI Menu > Advanced > Network > CDP > Packet Interval
Author：admin  Create time：2023-08-23 13:39
Last editor：admin  Update time：2025-03-10 10:42