name: NDS/IP
full_form: NDS for IP based protocols
context: The NDS/IP key management and distribution architecture is based on the IKEv2 (RFC 7296 [43]) protocol. As described in the previous section a number of options available in the full IETF IPsec protocol suite have been considered to be unnecessary for NDS/IP. Furthermore, some features that are optional in IETF IPsec have been mandated for NDS/IP and lastly a few required features in IETF IPsec have been deprecated for use within NDS/IP scope. Sections 5.3 and 5.4 give an overview over the profiling of IPsec and IKEv2 in NDS/IP. The compound effect of the design choices in how IPsec is utilized within the NDS/IP scope is that the NDS/IP key management and distribution architecture is quite simple and straightforward. The basic idea to the NDS/IP architecture is to provide hop-by-hop security. This is in accordance with the chained-tunnels or hub-and-spoke models of operation. The use of hop-by-hop security also makes it easy to operate separate security policies internally and towards
description: NDS/IP refers to the Network Domain Security for IP-based protocols, which is a profiled version of the IETF IPsec protocol suite. It utilizes IKEv2 for key management and distribution, providing hop-by-hop security in accordance with chained-tunnels or hub-and-spoke models of operation.
explanation: The text describes NDS/IP as a "profiled version" of the IETF IPsec protocol suite, designed for network domain security. This clearly classifies it as a protocol.
section_title: 5.6.1	Network domain security architecture outline
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