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Networking hardware typically refers to equipment facilitating the use of a computer network. Typically, this includes routers, switches, access points, network interface cards and other related hardware. This is a list of notable vendors who produce network hardware.
A network switch is a multiport network bridge that uses MAC addresses to forward data at the data link layer (layer 2) of the OSI model. Some switches can also forward data at the network layer (layer 3) by additionally incorporating routing functionality. Such switches are commonly known as layer-3 switches or multilayer switches. [2]
The inside of a Cisco 1900-series switch. Catalyst is the brand for a variety of network switches, wireless controllers, and wireless access points sold by Cisco Systems.While commonly associated with Ethernet switches, a number of different types of network interfaces have been available throughout the history of the brand.
The Cisco Nexus series switches are modular and fixed port network switches designed for the data center. Cisco Systems introduced the Nexus Series of switches on January 28, 2008. The first chassis in the Nexus 7000 family is a 10-slot chassis with two supervisor engine slots and eight I/O module slots at the front, as well as five crossbar ...
Routers and switches The machines that route and redirect packets across a network, including those for networks of smart meters. [7] Security and surveillance IP cameras, data and network security etc. [8] Voice and conferencing VOIP phones and gateway-systems, WebEx, video conferencing Wireless Indoor Wi-Fi Access points, Wireless Controller
An Interface Descriptor Block, or simply IDB, is a portion of memory or Cisco IOS internal data structure that contains information such as the IP address, interface state, and packet statistics for networking data. Cisco's IOS software maintains one IDB for each hardware interface in a particular Cisco switch or router and one IDB for each ...
Networking equipment was traditionally categorized by functionality as being either a switch or a router. Switches bridged (transmitted) L2/Ethernet traffic, and a router forwarded (transmitted and routed) L3/IP traffic. As products became more sophisticated, the distinction between a switch and a router became blurred as high-end switches ...
Much faster than router-on-a-stick, because everything is hardware-switched and routed. No need for external links from the switch to the router for routing. Not limited to one link. Layer 2 EtherChannels can be used between the switches to get more bandwidth. Latency is much lower, because it does not need to leave the switch