Physical Interfaces
Modular switches
- Network switches that are constructed in medium-to large-sized chassis are referred to as modular switches. Thousands of Catalyst 6500 series were produced by Cisco. Black Diamond is one of Extreme’s series. For their 5400zl series, HPE is well-known. Arista’s high-performance 7504 and 7508 series are available. It is similar to choosing which drawers go into each slot in a large chest of drawers. Up until the introduction of stackable switches, these modular chassis switches dominated many corporate and data center cabinets and were produced in large quantities. In the early 2000s, the modular chassis was the main source of an annoyance since it was “large, cumbersome, expensive, and required a network cabinet with matching cooling system and hefty power requirements.”
- Many of these switches were used to power servers using side-of-rack wiring systems at distant data centers.
- With the introduction of the stackable switch, the high demand for the modular chassis switch decreased. Why invest time, money, and space in these large classes when one can purchase conventional 24 and 48-port switches and stack them together was a common question among network managers.
- The benefits for any company that owns and manages a chassis switch are significant: flexibility, a wide range of functions, quick expansion, cheaper cost per port price, and an abundance of chassis and module options.
Compare Physical Interface and Cabling Types
Cables (coaxial, twisted pair, fiber optic, and telephone lines) are made up of various network hardware components, network adapters used in computers connected to networks (hosts), and concentrators or bridges used in networks. connect to physical networks where physical networks come in various sizes and hardware configurations. Local area networks (LAN) and wide area networks are the two most common types of networks (WAN). A local area network (LAN) is a network in which communications are restricted to a modest geographic area. A single office building, warehouse, or university, 1 to 10 kilometers (1 to 6 miles) in size.WAN is a network that enables data connections across geographical regions that are bigger than those covered by LAN, such as spanning an entire continent. There is also a middle class of networks known as metropolitan area networks (MANs). MANs are bundled with WANs in this guide and are not frequently distinguished. Standard Ethernet, IEEE 802.3 Ethernet, or token-ring hardware are frequently used in LANs for the physical network, while common carrier networks are used in WANs and asynchronous networks. In both situations, the operation of the physical network is typically governed by networking standards from organizations like the International Telecommunication Union (ITU) or the Electronics Industry Association (EIA) (ITU).
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