Administrator’s Guide for SIP-T5 Series Smart Media Phones
54
Parameter
Permitted
Values
Default
0
-Disabled
1
-Enabled
The priority of each method is: LLDP/CDP>Manual>DHCP VLAN.
If it is set to 1 (Enabled), the IP phone will attempt to use the lower priority of VLAN
assignment method when failing to obtain the VLAN ID using higher priority of VLAN
assignment method. If all the methods are attempted, the phone will disable VLAN
feature.
Note:
If you change this parameter, the IP phone will reboot to make the change take
effect.
Web User Interface:
None
Phone User Interface:
None
LLDP
LLDP (Linker Layer Discovery Protocol) is a vendor-neutral Link Layer protocol, which 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.
When LLDP feature is enabled on IP phones, the IP phones periodically advertise their own
information to the directly connected LLDP-enabled switch. The IP phones can also receive LLDP
packets from the connected switch. When the application type is “voice”, IP phones decide
whether to update the VLAN configurations obtained from the LLDP packets. When the VLAN
configurations on the IP phones are different from the ones sent by the switch, the IP phones
perform an update and reboot. This allows the IP phones to be plugged into any switch, obtain
their VLAN IDs, and then start communications with the call control.
Procedure
LLDP can be configured using the following methods.
Central Provisioning
(Configuration File)
<y0000000000xx>.cfg
Configure LLDP feature.
Parameters:
static.network.lldp.enable
static.network.lldp.packet_interval
Web User Interface
Configure LLDP feature.
Navigate to
:
http://<phoneIPAddress>/servlet?
Summary of Contents for CP969
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Page 781: ...Troubleshooting 759 The phone begins rebooting Any reboot of the phone may take a few minutes ...
Page 787: ...Troubleshooting 765 information on capturing packets refer to Capturing Packets on page 735 ...
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