Networks
Polycom, Inc.
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Inventory – A management system can query a switch to learn about all the devices connected to
that switch. The LLDP protocol is formally specified in standards document IEEE 802.1AB.
LLDP-MED Information Discovery
In this implementation, LLDP-MED enables the following information discovery:
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Auto discovery of LAN policies enabling plug and play networking
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Inventory management, which allows network administrators to track their network devices.
Behavior When LLDP is Enabled
When LLDP is enabled on a RealPresence Group system, it discovers VLANs advertised by the network
switch and automatically configures the system for one of the VLANs. If the RealPresence Group system
discovers any of the following VLAN types in LLDP data from the network switch, the system automatically
configures itself for one of them. The chosen VLAN type is based on the order of precedence, as follows:
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Video Conferencing VLAN
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Voice VLAN
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Voice Signaling VLAN
If none of the above VLAN types are found, the RealPresence Group Series system configures itself for the
default or native LAN of the switch port to which it is connected.
LLDP packets are transmitted regularly so that the network switch (and the neighboring endpoints) are
aware of the RealPresence Group Series system presence on the network.
Enable LLDP
To enable LLDP on your RealPresence Group system, you have the choice of enabling it before the setup
wizard process, using a USB storage device, or after the setup wizard in the web or the local interface.
Enable LLDP Using a USB Storage Device
When you install a new RealPresence Group system on a network (or reset the system), you can enable
LLDP just before the setup wizard process using a USB storage device.
To use a USB storage device to enable LLDP:
1
Create a usbprovisioning.properties file with the following text string:
lldpenable=true
2
Copy the usbprovisioning.properties file to a USB storage device into the root folder.
3
Ensure that the RealPresence Group system is powered off.
4
Insert the USB storage device into the RealPresence Group system USB drive.
5
Power on the RealPresence Group system.
After the RealPresence Group system detects the file, you cannot interact with the system while it
detects and places the system into the VLAN network. Once the LLDP detection process is complete,
you can continue the setup wizard process.
