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    • How to Use Ping to Test a Network

      How to Use Ping to Test a Network

      The following steps elaborate on how to use the Ping utility to perform progressively more distant tests on network connectivity. Ping the Loopback Address – Type Ping Successfully pinging the loopback address verifies that TCP/IP is both installed and configured correctly on the local client. If the loopback test fails, it means IP stack

    • Network Routers

      Network Routers

      A network router is a network device with interfaces in multiple networks whose task is to copy packets from one network to another. Routers operate at Layer 3 of the OSI Model, the Network Layer. This is in contrast to switches, which operate at Layer 2 of the OSI Model, the Data-Link Layer. A network

    • – What Are its Uses and Why is it Important? – What Are its Uses and Why is it Important? is a private IP address that is commonly used by Netgear and D-Link routers. The Netgear and D-Link brands are competitors to the Linksys division of Cisco, Incorporated and make a large number of the Internet routers used world-wide. The network address is not granted to the Netgear and D-Link companies exclusively; however, as

    • Routing


      Routing is the process of moving packets through an internetwork, such as the Internet. Routing actually consists of two separate, but related, tasks: Defining paths for the transmission of packets through an internetwork. Forwarding packets based upon the defined paths. Routing takes place in IP networks, based on IP routing tables and its entries. The

    • Null Route

      Null Route

      A null route is a route that goes to nowhere. The reason for creating a null route is to prevent your system from sending any data to a remote system. Creating a null route Null routes are usually created using the `route` command. This works under both Windows and Unix, although the syntax differs. The

    • Frame vs Packet

      Frame vs Packet

      A packet and a frame are both packages of data moving through a network. A packet exists at Layer 3 of the OSI Model, whereas a frame exists at Layer 2 of the OSI Model. Layer 2 is the Data Link Layer. The best known Data Link Layer protocol is Ethernet. Layer 3 is the

    • IP (Internet Protocol)

      IP (Internet Protocol)

      The primary network communications protocol used on networks today is the IP (Internet Protocol). IP relays or transfers network packets, also known as datagrams, to destinations on local networks or across the public Internet. It defines the structures which encapsulate information as well as the legal addressing methods used to identify the source and destination

    • QoS (Quality of Service)

      QoS (Quality of Service)

      QoS stands for Quality of Service. QoS is a generic name for a set of algorithms which attempt to provide different levels of quality to different types of network traffic. Queuing One method of implementing QoS is to utilize some sort of advanced queuing algorithm. Simple networks process traffic with a FIFO (First In –

    • Routing Software

      Routing Software

      Most networks currently run on hardware-based routers from vendors like Cisco, Foundry, and Juniper. Computing power has advanced to the point where this is not necessary. General purpose computing platforms can replace these expensive dedicated hardware routers. These software routing platforms usually run on some version of free or inexpensive Unix. These are a few

    • IP Address

      IP Address

      An IP (Internet Protocol) address is a unique address that different computers on a computer network use to identify and communicate with one another. An IP address is used as an identifier to find electronic devices connected to one another on a network. Therefore, each device in the network must have its own unique address.

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