netwerkswitches

Netwerkswitches are devices that connect multiple devices within a local network and forward data frames based on MAC addresses. Most operate at layer 2 of the OSI model, performing switching to create collision-free domains. Some switches also include layer 3 functionality and can route traffic between VLANs, effectively acting as basic routers in small networks. Switches differ from hubs by learning addresses and filtering traffic, which improves efficiency and security.

There are several common types of netwerkswitches. Unmanaged switches offer plug-and-play operation with no configuration, suitable for small networks. Managed switches provide configurable features such as VLANs, quality of service (QoS), link aggregation, and access control lists. Smart or distribution switches offer a middle ground with limited management capabilities. Many switches support Power over Ethernet (PoE), allowing powered devices such as IP phones and wireless access points to receive power from the switch.

Key features include MAC address learning, VLAN support, spanning tree protocol to prevent loops, QoS for traffic prioritization, and link aggregation using LACP to increase bandwidth and provide redundancy. Performance is described by port speeds (such as 10/100/1000 Mbps or higher) and overall switching capacity. Some switches offer stacking or chassis-based designs to scale port counts and provide centralized management and redundancy. Security features often include 802.1X authentication and access control lists.

Netwerkswitches are deployed in a range of contexts, from small offices to campus networks and data centers. Layer 2 switches handle intra-network forwarding, while layer 3 switches add routing between networks or VLANs, enabling more complex network architectures. Standards and interoperability focus on Ethernet and compatible module options (SFP/SFP+ for fiber uplinks) to match performance and distance requirements.