Cisco CloudCenter: Get the Hybrid IT Advantage

Layer 8

Definition - What does Layer 8 mean?

The term "layer 8" is a hypothetical layer that is used to analyze network problems and issues that are not covered by the traditional seven-layer OSI model. It is commonly used to refer to user error.

Techopedia explains Layer 8

The Open Systems Interconnection (OSI) model, which is maintained by the International Organization for Standardization (ISO), is split into seven layers with different kinds of network functionality. These layers are as follows:

  1. Physical layer
  2. Data link layer
  3. Network layer
  4. Transport layer
  5. Session layer
  6. Presentation layer
  7. Application layer

Each of these has specific functionality in the model.

By contrast, layer 8 is not an official part of the model and has no actual functionality. Rather, the name is used by IT professionals to refer to the forces and issues affecting a network that are outside of the OSI model. Some call layer 8 a "political layer," which refers to issues like network neutrality and spectrum management that affect a network in secondary ways. Others call it as a "user layer," which refers to problems ascribed to users. The term layer 8 can also be used humorously to talk about "ghost in the machine" problems that cannot really be linked to a technical part of the OSI model. In general, layer 8 is a loose term that refers to the non-technical aspects of network administration and is generally not used outside of the network administrator community.

Share this:

Connect with us

Email Newsletter

Join thousands of others with our weekly newsletter

The 4th Era of IT Infrastructure: Superconverged Systems
The 4th Era of IT Infrastructure: Superconverged Systems:
Learn the benefits and limitations of the 3 generations of IT infrastructure – siloed, converged and hyperconverged – and discover how the 4th...
Approaches and Benefits of Network Virtualization
Approaches and Benefits of Network Virtualization:
Businesses today aspire to achieve a software-defined datacenter (SDDC) to enhance business agility and reduce operational complexity. However, the...
Free E-Book: Public Cloud Guide
Free E-Book: Public Cloud Guide:
This white paper is for leaders of Operations, Engineering, or Infrastructure teams who are creating or executing an IT roadmap.
Free Tool: Virtual Health Monitor
Free Tool: Virtual Health Monitor:
Virtual Health Monitor is a free virtualization monitoring and reporting tool for VMware, Hyper-V, RHEV, and XenServer environments.
Free 30 Day Trial – Turbonomic
Free 30 Day Trial – Turbonomic:
Turbonomic delivers an autonomic platform where virtual and cloud environments self-manage in real-time to assure application performance.