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lecture1
lecture1

... – Application – Physical – Link – Network – Transport Spring 2007 ...
COMS 4995-1 Networking Laboratory
COMS 4995-1 Networking Laboratory

... LACNIC (Latin America and some Caribbean Islands) RIPE NCC (Europe, the Middle East, Central Asia, and African countries located north of the equator). AfriNIC (Africa) (100,663,296 IP addresses 5% of total IPv4 addresses!) 8 ...
COMPUTER AND INFORMATION SCIENCE (CIS)
COMPUTER AND INFORMATION SCIENCE (CIS)

... concepts of network cabling systems. It focuses on network cabling design, installation, testing, certification and troubleshooting. Students will develop knowledge and skills in installing and testing voice and data cable connectors and jacks, horizontal links and channels, pulling and terminating ...
1. Introduction - Revistas Universidad Distrital Francisco José de
1. Introduction - Revistas Universidad Distrital Francisco José de

... used, Figure 1 represents a PON basic topology. PON systems include an Optical Line Termination (OLT), which is also known as optical line terminal. Some of the most important functions of the OLT are the traffic scheduling, bandwidth allocation and buffer control. The ODN based on splitters is resp ...
Emerging Principles Governing the Operation of
Emerging Principles Governing the Operation of

... function. Neural networks were viewed largely as "hard wired" (Bentley & Konishi 1978) and could therefore be defined by their anatomical or monosynaptic connectivity. Activity coming into a network would be operated upon by that network in accordance with the pattern of synaptic connectivity, much ...
Chapter 2 Internetworking
Chapter 2 Internetworking

... should really commit to memory: ...
What is the Purpose of a DMZ? What Services are Normally Placed
What is the Purpose of a DMZ? What Services are Normally Placed

... placed in the DMZ include: mail or email servers, FTP servers, Web Servers, and VOIP servers. The decision on what server(s) to place within the DMZ is based on the overall computer security policy of an organization and resource analysis of the drawbacks to placement outside of the primary domain. ...
Spin Palace Casino Mobile - Spin Palace Mobile Flash Casino
Spin Palace Casino Mobile - Spin Palace Mobile Flash Casino

... control and coding. We should know that the message usage of a simple multi-hop system is based on a strategy that is not always the best. Furthermore, we proposed a new design of WSN which is called ZigBee_IRS. We use ZigBee to design the nodes of WSN and we try to improve it in the simulation by i ...
CB23474480
CB23474480

... called subnetworks or subnets. A Class A, B, or C TCP/IP network can be further divided, or subnetted, by a system administrator. A system administrator who is allocated a block of IP addresses may be administering networks that are not organized in a way that easily fits these addresses. For exampl ...
Quality of Service (QoS) for Enterprise Networks
Quality of Service (QoS) for Enterprise Networks

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RIP/OSPF

... » e.g. Cisco may have a proprietary protocol that relies on a specific hardware implementation. ...
PPPoE priekšrocības Interneta pakalpojumu sniedzējiem
PPPoE priekšrocības Interneta pakalpojumu sniedzējiem

... PPPoE Access Concentrator 2.4GHz Access Point VPN (PPTP tunnels between routers) PPTP Access Concentrator (PPTP tunnels between the router and workstations) EoIP tunnels – for transparent bridging of ...
Virtual Private Networking over MPDS
Virtual Private Networking over MPDS

... PPTP was designed by a consortium including Ascend, 3com, Telematics, US Robotics and Microsoft. The protocol was designed as an encapsulation method to enable other network protocols to be transmitted over a TCP/IP network. The ability to encrypt the tunnelled data was added later, and led to the p ...
No Slide Title
No Slide Title

... stop-and-wait -- sender waits for receiver’s permission (inefficient for large transmissions) sliding window -- allows several outstanding unacknowledged frames (needs sequence #s) HDLC (high level data link control) -balanced, permits two-way simultaneous message passing, acknowledgments in frame h ...
IP Based VPNs
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... of interest, and is constructed through some form of partitioning of a common underlying communications medium, where this underlying communications medium provides services to the network on a nonexclusive basis." “A VPN is a private network constructed within a public network infrastructure, such ...
Network Architecture Design for Wireless Sensor Nodes
Network Architecture Design for Wireless Sensor Nodes

... and many services are also dependent on application semantics (e.g. application-specific data processing combined with data routing). Wireless sensor networks is an intelligent distributed sensor system providing a wide range of applications in both military as well as civilian domains connected via ...
Cisco 1120 Connected Grid Router Data Sheet
Cisco 1120 Connected Grid Router Data Sheet

... grid operators with the benefits of open standards-based, multi-service networking, strong network security, robust manageability, and high reliability. The distributed intelligence capabilities integrated into CG-OS software allows customers to run applications such as Supervisory Control and Data ...
Using the BASrouter with a Spyder Controller
Using the BASrouter with a Spyder Controller

... For the MS/TP MAC address of the BASrouter, we suggest the default of 0. However, this is the default address for all Honeywell MS/TP devices — so all Spyders should be set to a different address before attaching them to the network. MAC address 0 gives the router the first opportunity to grab the t ...
Annex 1D Equipment to Trade-In
Annex 1D Equipment to Trade-In

... QSFP28/CPAK/CFP4 form factors for their respective port speed. 3.2 The respective line cards shall also support 1GBase-SX, 1GBaseLX, 10GBase-SR, 10GBase-LR, 10GBase-ER, 40GBase-LR4, 100GBase-LR4, DWDM and Bi-Directional optics. PC is to provide the list of supported optical transceivers. 3.3 The swi ...
Chap 7: Protecting Advanced Communications
Chap 7: Protecting Advanced Communications

... • Prior to VPNs, organizations were forced to lease expensive data connections from private carriers so employees could remotely connect to the organization’s network ...
Dynamic.Routing.Protocols Power
Dynamic.Routing.Protocols Power

... about networks to other routers A procedure for receiving reachability information from other routers A procedure for determining optimal routes based on the reachability information it has and for recording this information in a routing table A procedure for reacting to, compensation for, and adver ...
XML: Part - RoboSoft
XML: Part - RoboSoft

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IEICE Communications Society GLOBAL NEWSLETTER Vol. 2
IEICE Communications Society GLOBAL NEWSLETTER Vol. 2

... 1000ch offers 10Tbit/s capacity. It is more important to consider how to fully utilize this huge capacity before implementing the system. In the near future, digital TV systems will be released and each family member will be able to enjoy their own high definition TV program at the same time. If thi ...
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Slides

... reservation requests from receivers onto the tree from the same source. - large reservations made subsequent to an existing smaller reservation fails, and due to native implementation entire reservation fails - receivers continually making attempts to make large reservations, retrying quickly after ...
Multimedia Streaming over the Internet
Multimedia Streaming over the Internet

... towards the wide spread of huge amounts of multimedia content through the Internet. Multimedia data are usually of considerable size, requiring long and sometimes intolerable transfer times. The situation, for example, of “live events” transmission along with occasionally poor network support, calls ...
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Computer network

A computer network or data network is a telecommunications network which allows computers to exchange data. In computer networks, networked computing devices exchange data with each other along network links (data connections). The connections between nodes are established using either cable media or wireless media. The best-known computer network is the Internet.Network computer devices that originate, route and terminate the data are called network nodes. Nodes can include hosts such as personal computers, phones, servers as well as networking hardware. Two such devices can be said to be networked together when one device is able to exchange information with the other device, whether or not they have a direct connection to each other.Computer networks differ in the transmission media used to carry their signals, the communications protocols to organize network traffic, the network's size, topology and organizational intent. In most cases, communications protocols are layered on (i.e. work using) other more specific or more general communications protocols, except for the physical layer that directly deals with the transmission media.Computer networks support applications such as access to the World Wide Web, shared use of application and storage servers, printers, and fax machines, and use of email and instant messaging applications.
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