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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 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.
Содержание N1-9802W
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