What is a Northbound Interface/Southbound Interface?
A northbound interface (NBI) is an application programming interface (API) or protocol facilitating communication from lower-level network components to higher-level systems, while a southbound interface (SBI) allows higher-level components to command lower-level components. These interfaces are prevalent in software-defined networking (SDN), helping to simplify network architecture and management.
Source: What is a Northbound Interface/Southbound Interface
Key Points
- Northbound interfaces enable communication from lower-level components to higher-level systems.
- Southbound interfaces allow commands from higher-level components to lower-level systems.
- These interfaces are particularly significant in software-defined networking (SDN).
- North-south traffic refers to data flowing in and out of the internetwork.
- East-west traffic involves data movements within the network itself.
- Enhanced flexibility and programmability are key benefits of northbound interfaces.
- Southbound interfaces play crucial roles in implementing policies and configurations.
Why should I read this?
This article provides an essential understanding of northbound and southbound interfaces, crucial for professionals involved in network management and software-defined networking. It demystifies important concepts that underpin modern network architecture, illustrating how efficient communication between different levels of network components can enhance performance and adaptability in the ever-evolving landscape of information technology.
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