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    • 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 –

    • IP Address Conflict

      IP Address Conflict

      An IP (or Internet Protocol) address conflict occurs when two different systems on the same subnet are assigned or otherwise have their network interface configured to use the same IP address. It is possible to have two systems on different subnets configured with the same IP address, but not have a conflict occur due to

    • How to Upgrade LinkSys Firmware

      How to Upgrade LinkSys Firmware

      It is important to check regularly if a Linksys product has a new firmware update. Firmware updates are quite common in computer peripherals and devices and in many cases must be updated in order to run properly. However, before upgrading LinkSys firmware, it is important to understand what firmware is and why it should be

    • MTU (Maximum Transmission Unit)

      MTU (Maximum Transmission Unit)

      The MTU (Maximum Transmission Unit) is the size of the largest datagram that can be sent over a network. If a datagram is larger than an MTU, the datagram must be fragmented into multiple smaller datagrams. Default MTU Sizes Most network technologies have default MTU sizes which may be changed by the network administrator. Network

    • How Firewall Protection Works

      How Firewall Protection Works

      Firewall protection works by blocking certain types of traffic between a source and a destination. All network traffic has a source, a destination, and a protocol. This protocol is usually TCP, UDP, or ICMP. If this protocol is TCP or UDP, there is a source port and a destination port. Most often the source port

    • NAT (Network Address Translation)

      NAT (Network Address Translation)

      NAT (Network Address Translation) is a technique for preserving scarce Internet IP addresses. Why NAT? The current Internet uses IP addresses in the form xxx.xxx.xxx.xxx. A sample IP address might be 202.187.4.212. Because of the way these IP addresses are allocated, there started to be a shortage of available IP addresses. The current IP (Internet

    • 568A

      568A

      In the past, two main termination specifications were used. One was for UTP data cable infrastructure and the other for phone cable infrastructure. Today, structured cable systems are in use. 568A is one such standard. 568A is a standard for the pin arrangements of RJ-45 connectors on Unshielded Twisted Pair (UTP) wire. The cryptic number

    • What is EIGRP?

      What is EIGRP?

      Local and international networks require information to be constantly updated in order to properly route communications. Routing protocols were developed in order to help keep information flowing to the proper locations and to maintain network connectivity on both LAN and WAN. The Enhanced Interior Gateway Routing Protocol (EIGRP) is one of the most popular internal

    • Understanding Cisco IOS

      Understanding Cisco IOS

      Cisco IOS As you know that Cisco is the worldwide leader in providing the hardware solutions as well as the software solutions of LAN and WAN. The hardware solutions mean that the hardware devices such as switches and routers etc but what is the meaning of software solution? The software solution actually means that Cisco

    • What is an L2TP?

      What is an L2TP?

      L2TP (Layer Two Tunneling Protocol) defines an extension to PPTP (Point-to-Point Tunneling Protocol) that an ISP (Internet Service Provider) uses to allow a VPN (Virtual Private Network) to operate. L2TP combines L2F from Cisco Systems’ optimum features and PPTP from Microsoft into a single protocol. L2TP’s two primary components are the LNS (L2TP Network Server)

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