Networking Devices
This page provides an overview of common networking devices and their roles in the OSI model.
Operates at Layer 3 (Network Layer). Connects different networks and forwards data packets between them based on IP addresses.
Operates at Layer: 3
Primarily operates at Layer 2 (Data Link Layer). Forwards data within a network based on MAC addresses. Some advanced switches can also operate at Layer 3.
Operates at Layers: 2, 3
Operates at Layer 1 (Physical Layer). Broadcasts incoming data to all connected devices. Less efficient than switches and largely obsolete in modern networks.
Operates at Layer: 1
Operates at Layer 2 (Data Link Layer). Connects and filters traffic between two network segments.
Operates at Layer: 2
Operates at Layer 1 (Physical Layer). Amplifies and retransmits network signals to extend the range of a network.
Operates at Layer: 1
Can operate at multiple layers (typically 4-7). Translates communication between different network protocols.
Operates at Layers: 4, 5, 6, 7
Can operate at multiple layers (typically 3-7). Monitors and controls incoming and outgoing network traffic based on predetermined security rules.
Operates at Layers: 3, 4, 5, 6, 7
Typically operates at Layer 4 (Transport Layer) or Layer 7 (Application Layer). Distributes network traffic across multiple servers to ensure no single server becomes overwhelmed.
Operates at Layers: 4, 7