SDH is the abbreviation of Synchronous Digital Hierarchy, which refers to multiplexing techniques and technology used in networking and telecommunications. It is the most popular standard being used in the whole world. The SDH proved a high-speed transfer of data and digital signals. Due to synchronization, Synchronous Digital Hierarchy provides a flexible and simple network… Read more
SONET stands for Synchronous Optical Networking. It is a protocol for transmitting a huge volume of data over long distances using a fiber optic medium. Synchronous Optical Networking was primarily developed in 1984 and then standardized by the American National Standards Institute (ANSI) in 1988. Using synchronous optical networking, multiple digital data streams are transferred
WAN devices discussed in the previous article are incomplete because other devices may be needed, depending on the chosen WAN access technology. WAN access technologies are either circuit-switched or packet-switched. Circuit Switched In a circuit-switched network, communications between end devices must be established before they can communicate. A circuit-switched network establishes a dedicated circuit (or
There are many types of specially designed WAN devices used in networks. These devices require expert skills for configuring and management. The important WAN devices are: Dialup modem Dialup Modems allow digital data to be sent over an analogue medium during the transmission and receiving of information. The dial-up modem is a legacy WAN technology.
Wide-area networks (WANs) are used for different LANs together. It can connect different LANs within the city, country, or global region. Different technologies are used for WANs and LANs. Generally, the ISPs provide WANs routers and switches to accommodate different services. As a network administrator, it is your responsibility to research possible network devices for
Due to the importance of EIGRP troubleshooting problems related to this protocol is an important ability for a network administrator. There are numerous commands that are important during EIGRP troubleshooting. The most used command for EIGRP troubleshooting is the “show ip eigrp neighbors”, “show ip route”, and “show ip protocols”. The commands can also be
Basic EIGRP Troubleshooting Commands – Exclusive Introduction Read More »
Network security is an important consideration for network administrators. The router install in a public network is at risk each time, anyone with a packet sniffer can read information propagating between routers. The router can be attacked through the interruption of peer devices or the falsifying of routing information. Interruption of peers is less critical
MD5 Routing Protocol Authentication – Exclusive Explanation Read More »