From the course: CISSP Cert Prep (2021): 4 Communication and Network Security
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Multilayer protocols
From the course: CISSP Cert Prep (2021): 4 Communication and Network Security
Multilayer protocols
- [Instructor] Multi-layer network communication protocols provide standards that allow diverse systems to communicate with each other. The most common multi-layer protocol that security professionals encounter is the TCP/IP suite of network protocols. TCP/IP powers the internet and almost every local area network on the planet today. However, TCP/IP isn't the only multi-layer protocol that you need to be familiar with. The Distributed Network Protocol or DNP3 is a set of networking protocols designed specifically for use in a class of systems known as Supervisory Control And Data Acquisition or SCADA systems. DNP3 facilitates communications between devices using three distinct components. First, the purpose of these systems is to allow the collection of data from intelligent electronic devices that are located at a series of remote substations. Each one of these substations has a Remote Terminal Unit or RTU that provides…
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