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Appendix F Glossary
July 2013
Network Management
Unit (NMU)
The NU responsible for the management of a NILE Network during
normal operations.
Network Packet (NP)
SNCs communicate information on NILE Networks using Network
Packets. A NP consists of an integer number of LIPs together with a
Network Packet Header. A NP is either received complete and correct or
not received at all. The size of a NP is media dependent.
Network Packet
Header
Information inserted into a NP to enable the LIPs contained in the NP to
be packed efficiently in the NP and to be unpacked by receiving NUs.
The NP Header size and contents are dependent on the capacity of the
NP for which it is generated.
NILE
1. NATO Improved Link 11 (NILE) is the former name for Link 22, and as
such is used in some earlier documentation and is synonymous with
Link 22.
2. NILE is also used to refer to the international project organization to
support the development of the NCE.
See also NILE Communications Equipment.
NILE Address
A 7-bit number used by the SNC segment of the Link 22 system to
uniquely identify each NU in a SN. NILE Addresses are automatically
allocated to NUs during SN initialization. The SNMU will be responsible
for managing the allocation of NILE Addresses to NUs that did not obtain
a NILE Address during SN initialization. The SNMU may also allocate
NILE Addresses to RUs to enable them to be identified as the source of
data forwarded from other data links. The NILE Address is not visible to
the TDS/DLP segments of the Link 22 system.
NILE Communications
Equipment (NCE)
A communications system to support Link 22. NCE consists of a DLP
interface, a System Network Controller (SNC), a Link Level COMSEC
subsystem, and the appropriate Signal Processing Controller(s) / radio
equipment.
NILE Network (NN)
A collection of NUs exchanging information in accordance with STANAG
5522 using a single medium and a unique set of network parameters.
NILE Reference
System (NRS)
Test tool essential to the development, life cycle support, and
performance validation of the Link 22 system. The NRS will verify the
Link 22 system compliance with requirements established in the Link 22
System specification, the System Network Controller specification and
other specifications associated with NILE development.
NILE Super Network
(SN)
A deployed Link 22 system that may operate using one or more
connected NILE Networks.
NILE Unit (NU)
A NILE node with a Link 22 address. It is capable of transmitting and/or
receiving information in accordance with STANAG 5522.
Non- C2 platforms
Platforms executing or supporting missions that receive information and
may also contribute information to the picture.
Non Machine receipt
Addressee (Non-MR
Addressee)
An Addressee who is not required to respond with a Machine Receipt.
F-8
Link 22 Guidebook