Instruction Manual
82
Fast start repeat
count
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 neighbour has been detected in order share LLDP-MED
information as fast as possible to new neighbours. Because
there is a risk of an LLDP frame being lost during transmission
between neighbours, it is recommended to repeat the fast
start transmission multiple times to increase the possibility
of the neighbours receiving the LLDP frame. With Fast start
repeat count it is possible to specify the number of times the
fast start transmission would be repeated. The recommended
value is 4 times, given that 4 LLDP frames with a 1 second
interval will be transmitted, when an 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
Network Connectivity Devices, or other types of links.
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 4 digits. It is possible to specify the
diretion to either East of the prime meridian or West of the
prime meridian.
