AMX NXA-ENET8-2POE Instruction Manual page 98

LLDP-MED Conf iguration parameters
• Fast Start Repeat
Count
Coordinates Location
• Latitude
• Longitude
• Altitude
• Map Datum
• Civic Address
Location
NXA-ENET8-2POE - Instruction Manual
Rapid startup and Emergency Call Service Location Identification Discovery of endpoints is a critically important
aspect of VoIP systems in general.In addition, it is best to advertise only those pieces of information which are
specifically relevant to particular endpoint types (for example only advertise the voice network policy to permitted
voice-capable devices), both in order to conserve the limited LLDPU space and to reduce security and system
integrity issues that can come with inappropriate knowledge of the network policy.
With this in mind LLDP-MED defines an LLDP-MED Fast Start interaction between the protocol and the application
layers on top of the protocol, in order to achieve these related properties. Initially, a Network Connectivity Device
will only transmit LLDP TLVs in an LLDPDU. Only after an LLDP-MED Endpoint Device is detected, will an LLDP-MED
capable Network Connectivity Device start to advertise LLDP-MED TLVs in outgoing LLDPDUs on the associated
port. The LLDP-MED application will temporarily speed up the transmission of the LLDPDU to start within a second,
when a new LLDP-MED neighbor has been detected in order share LLDP-MED information as fast as possible to new
neighbors.
Because there is a risk that a LLDP frame being lost during transmission between neighbors, it is recommended to
repeat the fast start transmission multiple times to increase the possibility for that the neighbors has received the
LLDP frame. With Fast start repeat count it is possible to specify the number of times the fast start transmission is
repeated. The recommended value is 4 times, giving that 4 LLDP frames with a 1 second interval will be
transmitted, when a LLDP frame with new information is received.
It should be noted that LLDP-MED and the LLDP-MED Fast Start mechanism is only intended to run on links
between LLDP-MED Network Connectivity Devices and Endpoint Devices, and as such does not apply to links
between LAN infrastructure elements, including between Network Connectivity Devices, or to other types of links.
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.
Normalized to within 0-180 degrees with a maximum of 4 digits. It is possible to specify the direction to either East
of the prime meridian or West of the prime meridian.
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.
The Map Datum used for the coordinates given in this Option.
WGS84: (Geographical 3D) - World Geodesic System 1984, CRS Code 4327, Prime Meridian Name: Greenwich.
NAD83/NAVD88: North American Datum 1983, CRS Code 4269, Prime Meridian Name: Greenwich; The
associated vertical datum is the North American Vertical Datum of 1988 (NAVD88). This datum pair is to be used
when referencing locations on land, not near tidal water (which would use Datum = NAD83/MLLW).
NAD83/MLLW: North American Datum 1983, CRS Code 4269, Prime Meridian Name: Greenwich; The associated
vertical datum is Mean Lower Low Water (MLLW). This datum pair is to be used when referencing locations on
water/sea/ocean.
IETF Geopriv Civic Address based Location Configuration Information (Civic Address LCI).
Country code - The two-letter ISO 3166 country code in capital ASCII letters. (Example: DK, DE or US)
State - National subdivisions (state, canton, region, province, prefecture).
County - County, parish, gun (Japan), district.
City - City, township, shi (Japan). (Example: Copenhagen)
City District - City division, borough, city district, ward, chou (Japan).
Block (Neighborhood) - Neighborhood, block.
Street - Street. (Example: Poppelvej)
Leading street direction - Leading street direction. (Example: N)
Trailing street suffix - Trailing street suffix. (Example: SW)
Street suffix - Street suffix. (Example: Ave, Platz)
House no. - House number. (Example: 21)
House no. suffix - House number suffix. (Example: A, 1/2)
Landmark - Landmark or vanity address. (Example: Columbia University)
Additional location info - Additional location information. (Example: South Wing)
Name - Name (residence and office occupant). (Example: Flemming Jahn)
Zip code - Postal/zip code. (Example: 2791)
Building - Building (structure). (Example: Low Library)
Apartment - Unit (Apartment, suite). (Example: Apt 42)
Floor - Floor. (Example: 4)
Room no. - Room number. (Example: 450F)
Place type - Place type. (Example: Office)
Postal community name - Postal community name. (Example: Leonia)
P.O. Box - Post office box (P.O. BOX). (Example: 12345)
Additional code - Additional code. (Example: 1320300003)
Configuring the NXA-ENET8-2POE
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