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Networking - General Questions / FAQs
Computer networking can also be classified according to the hardware and software technology that is used to interconnect the individual devices in the network, such as Optical fiber, Ethernet, Wireless LAN, HomePNA, Power line communication or G.hn. Ethernet uses physical wiring to connect devices. Frequently deployed devices include hubs, switches, bridges and/or routers. Networking - General Questions / FAQs.
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Networking Tools
Discussions related to Networking Tools.
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Network Security
Discussions related to Network Security.
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Network Installations & Troubleshooting
Discussions related to Network Installations & Troubleshooting.
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Personal Area Network (PAN)
Discussions related to Personal Area Network (PAN). A personal area network (PAN) is a computer network used for communication among computer devices close to one person. Some examples of devices that are used in a PAN are printers, fax machines, telephones, PDAs and scanners. The reach of a PAN is typically about 20-30 feet (approximately 6-9 meters), but this is expected to increase with technology improvements.
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Local Aea Network (LAN)
Discussions related to Local Aea Network (LAN). A local area network (LAN) is a computer network covering a small physical area, like a home, office, or small group of buildings, such as a school, or an airport. Current wired LANs are most likely to be based on Ethernet technology, although new standards like ITU-T G.hn also provide a way to create a wired LAN using existing home wires (coaxial cables, phone lines and power lines).
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Campus Area Network (CAN)
Discussions related to Campus Area Network (CAN). A Campus Area Network (CAN) is a computer network made up of an interconnection of local area networks (LANs) within a limited geographical area. It can be considered one form of a metropolitan area network, specific to an academic setting.
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Metropolitan Area Network (MAN)
Discusssions related to Metropolitan Area Network (MAN). A Metropolitan Area Network (MAN) is a network that connects two or more local area networks or campus area networks together but does not extend beyond the boundaries of the immediate town/city. Routers, switches and hubs are connected to create a metropolitan area network.
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Wide Area Network (WAN)
Discussions related to Wide Area Network (WAN). A Area Network (WAN) is a computer network that covers a broad area (i.e. any network whose communications links cross metropolitan, regional, or national boundaries).
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Global Area Network (GAN)
Discussions related to Global Area Network (GAN). In general, however, a GAN is a model for supporting mobile communications across an arbitrary number of wireless LANs, satellite coverage areas, etc.
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Virtual Private Network (VPN)
Discussions related to Virtual Private Network (VPN). A Virtual Private Network (VPN) is a computer network in which some of the links between nodes are carried by open connections or virtual circuits in some larger network (e.g., the Internet) instead of by physical wires.
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Internetwork
Discussions related to Internetwork. An Internetwork is the connection of two or more distinct computer networks or network segments via a common routing technology. The result is called an internetwork (often shortened to internet). In modern practice, interconnected networks use the Internet Protocol. There are at least three variants of internetworks, depending on who administers and who participates in them: Intranet, Extranet, Internet.
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Network Interface Cards (NIC)
Discussions related to Network Interface Cards (NIC). A network card, network adapter, or NIC (network interface card) is a piece of computer hardware designed to allow computers to communicate over a computer network. It provides physical access to a networking medium and often provides a low-level addressing system through the use of MAC addresses.
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Repeaters
Discussions related to Repeaters. A repeater is an electronic device that receives a signal and retransmits it at a higher power level, or to the other side of an obstruction, so that the signal can cover longer distances without degradation. In most twisted pair Ethernet configurations, repeaters are required for cable which runs longer than 100 meters.
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Hubs
A network hub contains multiple ports. When a packet arrives at one port, it is copied unmodified to all ports of the hub for transmission. The destination address in the frame is not changed to a broadcast address.
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Bridges
A network bridge connects multiple network segments at the data link layer (layer 2) of the OSI model. Bridges do not promiscuously copy traffic to all ports, as hubs do, but learn which MAC addresses are reachable through specific ports. Once the bridge associates a port and an address, it will send traffic for that address only to that port.
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Switches
A network switch is a device that forwards and filters OSI layer 2 datagrams (chunk of data communication) between ports (connected cables) based on the MAC addresses in the packets.[6] This is distinct from a hub in that it only forwards the packets to the ports involved in the communications rather than all ports connected.
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Routers
A router is a networking device that forwards packets between networks using information in protocol headers and forwarding tables to determine the best next router for each packet. Routers work at the Network Layer of the OSI model and the Internet Layer of TCP/IP.
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TCP/IP - General Questions / FAQs
TCP/IP - General Questions / FAQs.
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Application Layer
BGP · DHCP · DNS · FTP · GTP · HTTP · IMAP · IRC · Megaco · MGCP · NNTP · NTP · POP · RIP · RPC · RTP · RTSP · SDP · SIP · SMTP · SNMP · SOAP · SSH · Telnet · TLS/SSL · XMPP · - and more.
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Transport Layer
TCP · UDP · DCCP · SCTP · RSVP · ECN · - and more.
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Internet Layer
IP (IPv4, IPv6) · ICMP · ICMPv6 · IGMP · IPsec · - and more.
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Link Layer
ARP · RARP · NDP · OSPF · Tunnels (L2TP) · PPP · Media Access Control (Ethernet, MPLS, DSL, ISDN, FDDI) · - and more.
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Cisco - General Questions / FAQs
Cisco - General Questions / FAQs.
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Cisco Routing & Switching
Discussions related to Cisco Routing & Switching - OSPF, BGP, EIGRP, IS-IS, VTP, STP.
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Cisco Hardware & Network Management
Discussions related to Cisco Hardware & Network Management - Cisco routers and switches.
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Cisco VoIP Communications
Discussions related to Cisco IP Communications - VoIP, VoFrame, Cisco Call Manager, MeetingPlace, IP phones, AS5300, AS5350, AS5400.
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Cisco Security
Discussions related to Cisco Security - PIX, IDS, IPS, VPN, Cisco Secure.
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Employment Opportunities - Recruiting Agencies
Jobs posted by Recruiting Agencies such as RHT, TEKsystems, Ajilon, etc. Recruiting firms may list or post jobs here, there's no cost - 100% FREE.
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Employment Opportunities - Companies / Direct Hire
Jobs posted by Companies such as Google, eBay for direct hire, no recruitment firm or third parties involved. Companies may list or post jobs here, there's no cost - 100% FREE.
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Job Seekers - Resumes
Job seekers may post their resumes here, without disclosing too much of their personal information(name, address) to the public. You can always list your phone number, or e-mail address for fast communication. PM (Private Messaging) is advised if necessary.
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