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Chapter 3. System
5. Any device that supports the IEEE 802.1AB and MED extensions that can
relay IEEE 802 frames via any method.
An Endpoint Device a LLDP-MED Device that sits at the network edge and
provides some aspect of IP communications service, based on IEEE 802 LAN
technology.
The main difference between a Network Connectivity Device and
an Endpoint Device is that only an Endpoint Device can start the LLDP-MED
information exchange.
Even though a switch always should be a Network ConnectivityDevice, it is
possible to configure it to act as an Endpoint Device, and thereby start the
LLDP-MED information exchange (In the case where two
Network Connectivity Devices are connected together)
Coordinates Location
Latitude:
Latitude SHOULD be normalized to within 0-90 degrees with a maximum of
4 digits.
It is possible to specify the direction to either North of the equator or South of
the equator.
Longitude:
Longitude SHOULD be normalized to within 0-180 degrees with a maximum
of 5 digits.
It is possible to specify the direction to either East of the prime meridian or
West of the prime meridian.
Altitude:
Altitude SHOULD be normalized to within -32767 to 32767 with a maximum
of 4 digits.
It is possible to select between two altitude types (floors or meters).
Meters: Representing meters of Altitude defined by the vertical datum
specified.
Floors: Representing altitude in a form more relevant in buildings which have
different floor-to-floor dimensions. An altitude = 0.0 is meaningful even
outside a building, and represents ground level at the given latitude and
longitude. Inside a building, 0.0 represents the floor level associated with
ground level at the main entrance.
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