...way for some Ethernet devices to reduce power consumption. Energy-Efficient Ethernet devices have a low-power idle (LPI) mode that can cut power use by 50% or more during periods of low data activity. Because energy-efficient Ethernet devices scal...
...are compatible with devices that have appropriate SFP slots. These standards, which also extend to SFP+ and XFP transceivers, enable users to mix and match components from different vendors to meet their own particular requirements. • However, s...
...data from one network device to another (point to point); in a typical unicast network, Layer 2 switches easily support these types of communications. But multicasting is transmitting data from one network device to multiple users. When multicasti...
...identity of users and servers should be verified and the firewall should keep a record of message sources and arrival times. • Is the equipment compatible? • Each company’s network is unique. Yours may include various pieces of hardware and softwa...
...a standard so that devices from different vendors work together. • Layer 2 (The Data-Link Layer) • Layer 2 switches operate using physical network addresses. Physical addresses, also known as link-layer, hardware, or MAC-layer addresses, identi...
...controllers, etc.) devices. • The standard, which is functionally equivalent to ITU V.24/V.28, specifies the workings of the interface, circuitry, and connector pinning. Both sync and async binary data transmission fall under RS-232. Most PCs u...
...switch or other network device to convert the port to a copper or fiber interface. These compact transceivers replace the older, bulkier GBIC interface. Although these devices are available in copper, their most common use is to add fiber ports. Fib...
...100 mA) to unconfigured devices and up to 80% more power (900 mA vs 500 mA) to configured devices. It is also better at conserving power, when compared to USB 2.0, which uses power when the cable or device isn’t being used. With USB 3.0, when device...
...to dub from one device (a digital video camera, for instance) to another without a computer. It also enables multiple computers to share a given peripheral without any special support in the peripheral or the computers. • FireWire supports d...
...and telephone-related devices. • USB detects and configures the new devices instantly • Before the arrival of Universal Serial Bus (USB), adding peripherals required skill. You had to open your computer to install a card, set DIP switches, and mak...
Shopping Basket
Sign in
