What is a Managed Switch?
A Managed Switch allows connected network devices to communicate with each other, and also gives the network administrator greater control over managing and prioritizing LAN traffic.
It manages the data traveling over a network as well as the security access to the data by using protocols like SNMP (Simple Network Management Protocol), which monitors all devices connected to the network.
SNMP allows the network devices to exchange information and monitors this activity to detect network performance issues, bottlenecks, etc.
A Managed Switch uses SNMP to dynamically present a current status on network performance through a graphical interface, which is easier to understand and use for monitoring and configuration.
SNMP also allows remote management of the network and connected devices, without having to physically work on the switch.
Depending on the make and model of the switch, will determine the technical capabilities and advanced features available.
A Smart Switch is a ‘lighter’ version of a fully Managed Switch that offers additional features on different levels for security, quality of service, monitoring, analysis, VLANs etc, but are not very scalable. This is a more cost-effective version of a fully Managed Switch and can be used for less complex networks.
The capabilities of the Smart Switches and Fully Managed Switches vary greatly but generally will have a browser-based graphical interface to configure and monitor the devices and network, and in some cases the device management can be done through the command line interface, or Remote Network MONitoring (RMON), etc.
Definition - What does Switch mean?
A switch, in the context of networking is a high-speed device that receives incoming data packets and redirects them to their destination on a local area network (LAN). A LAN switch operates at the data link layer (Layer 2) or the network layer of the OSI Model and, as such it can support all types of packet protocols.
Essentially, switches are the traffic cops of a simple local area network.
Techopedia explains Switch
A switch in an Ethernet-based LAN reads incoming TCP/IP data packets/frames containing destination information as they pass into one or more input ports. The destination information in the packets is used to determine which output ports will be used to send the data on to its intended destination.
gigabit managed switches
Switches are similar to hubs, only smarter. A hub simply connects all the nodes on the network -- communication is essentially in a haphazard manner with any device trying to communicate at any time, resulting in many collisions. A switch, on the other hand, creates an electronic tunnel between source and destination ports for a split second that no other traffic can enter. This results in communication without collisions.
Switches are similar to routers as well, but a router has the additional ability to forward packets between different networks, whereas a switch is limited to node-to-node communication on the same network.
Contributor(s): John Burke, Dominique Brazziel
A network switch is a hardware device that channels incoming data from multiple input ports to a specific output port that will take it toward its intended destination. It is a small device that transfers data packets between multiple network devices such as computers, routers, servers or other switches.
A Managed Switch allows connected network devices to communicate with each other, and also gives the network administrator greater control over managing and prioritizing LAN traffic.
It manages the data traveling over a network as well as the security access to the data by using protocols like SNMP (Simple Network Management Protocol), which monitors all devices connected to the network.
SNMP allows the network devices to exchange information and monitors this activity to detect network performance issues, bottlenecks, etc.
A Managed Switch uses SNMP to dynamically present a current status on network performance through a graphical interface, which is easier to understand and use for monitoring and configuration.
SNMP also allows remote management of the network and connected devices, without having to physically work on the switch.
Depending on the make and model of the switch, will determine the technical capabilities and advanced features available.
A Smart Switch is a ‘lighter’ version of a fully Managed Switch that offers additional features on different levels for security, quality of service, monitoring, analysis, VLANs etc, but are not very scalable. This is a more cost-effective version of a fully Managed Switch and can be used for less complex networks.
The capabilities of the Smart Switches and Fully Managed Switches vary greatly but generally will have a browser-based graphical interface to configure and monitor the devices and network, and in some cases the device management can be done through the command line interface, or Remote Network MONitoring (RMON), etc.
Definition - What does Switch mean?
A switch, in the context of networking is a high-speed device that receives incoming data packets and redirects them to their destination on a local area network (LAN). A LAN switch operates at the data link layer (Layer 2) or the network layer of the OSI Model and, as such it can support all types of packet protocols.
Essentially, switches are the traffic cops of a simple local area network.
Techopedia explains Switch
A switch in an Ethernet-based LAN reads incoming TCP/IP data packets/frames containing destination information as they pass into one or more input ports. The destination information in the packets is used to determine which output ports will be used to send the data on to its intended destination.
gigabit managed switches
Switches are similar to hubs, only smarter. A hub simply connects all the nodes on the network -- communication is essentially in a haphazard manner with any device trying to communicate at any time, resulting in many collisions. A switch, on the other hand, creates an electronic tunnel between source and destination ports for a split second that no other traffic can enter. This results in communication without collisions.
Switches are similar to routers as well, but a router has the additional ability to forward packets between different networks, whereas a switch is limited to node-to-node communication on the same network.
Contributor(s): John Burke, Dominique Brazziel
A network switch is a hardware device that channels incoming data from multiple input ports to a specific output port that will take it toward its intended destination. It is a small device that transfers data packets between multiple network devices such as computers, routers, servers or other switches.
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