wide area networks for dummies

Tài liệu Ethernet Access for Next Generation Metro and Wide Area Networks pptx

Ngày tải lên : 21/12/2013, 06:15

... Access for Next Generation Metro and Wide Area Networks OL-14760-01 Technology Overview Service Types The Metro Ethernet Forum (MEF) has defined both point-to-point and multipoint service types for ... discusses their suitability for transporting real-time traffic. 41 Ethernet Access for Next Generation Metro and Wide Area Networks OL-14760-01 Scalability and Performance Results Observations ... with one shaper per class See Scalability and Performance Results, page 40 20 Ethernet Access for Next Generation Metro and Wide Area Networks OL-14760-01 Technology Overview Figure 8 Simple...

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Describe wireless wide area networks (WWANs) and how they are used

Ngày tải lên : 13/09/2012, 10:52

... data rates – 144 Kbps for a mobile user – 386 Kbps for a slowly moving user – 2 Mbps for a stationary user • 3G network technologies – CDMA2000 1xEVDO • For 2.5G CDMA2000 1xRTT networks 25 Binary ... 8-PSK – CDMA2000 1xRTT • Operates on two 1.25 MHz -wide frequency channels • Supports 144 Kbps packet data transmission 2 Objectives • Describe wireless wide area networks (WWANs) and how they are used • Describe ... Packet Radio Service (GPRS) • For TDMA or GSM 2G networks • Uses eight time slots in a 200 KHz spectrum and four different coding techniques – Enhanced Data rates for GSM Evolution (EDGE) • Can...

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Tài liệu Wide Area Networks doc

Ngày tải lên : 11/12/2013, 14:15

... mentioned earlier in the WRED notes, WRED behavior for a class can be configured as part of the class definition. (See the next slide.) For additional information, refer to: http://cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/qos_c/qcprt2/qcdwfq.htm Besides ... later). For additional information, refer to: http://cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/qos_r/qrdcmd1.htm#xtocid10852 The maximum number of packets the queue can hold for ... Box econ_0481_09_010.ppt A Possible Implementation of Assured Forwarding with WRED A Possible Implementation of Assured Forwarding with WRED Different drop preference for different precedence Precedence/DSCP...

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Tài liệu The Case for Virtual Local Area Networks (VLANs) ppt

Ngày tải lên : 17/01/2014, 06:20

... hub , networks became more crowded. A solution to the problem was necessary. Figur e 2. Hub-Based Twisted Pair Ethernet Ted Rohling, Global Knowledge Instructor, CISSP The Case for Virtual Local Area Networks ... results. The reason for the failure is that the Ethernet packets going over the trunk ports have a different format. 802.1Q Trunking Protocol The IEEE 802.1Q trunking protocol allows for the modification ... connection must also contain information about the source VLAN so that when packets arrive at the second switch, the second switch knows which VLAN to use for the information carried in the packet....

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Tài liệu Ethernet Signal Preservation In Factory-Terminated Patch Cords for Local Area Networks pptx

Ngày tải lên : 19/01/2014, 05:20

... shape of the square wave. Ethernet Signal Preservation In Factory-Terminated Patch Cords for Local Area Networks. OONNEE KRONE: 800-775-KRONE www.kroneamericas.com www.truenet-system.com. No part ... available only in lengths “safe” for Ethernet systems. All TrueNet cords are 100% performance tested and factory terminated to the proper lengths to ensure optimum performance. The next important ... TrueNet system is to eliminate the root causes of poor throughput in structured cabling systems. Fortunately, the benefits of patch cords that do not have error-causing lengths is demonstrable...

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Tài liệu Ethernet Signal PreservationIn Factory-Terminated Patch Cords for Local Area Networks ppt

Ngày tải lên : 25/01/2014, 06:24

... shape of the square wave. Ethernet Signal Preservation In Factory-Terminated Patch Cords for Local Area Networks. OONNEE KRONE: 800-775-KRONE www.kroneamericas.com www.truenet-system.com. No part ... available only in lengths “safe” for Ethernet systems. All TrueNet cords are 100% performance tested and factory terminated to the proper lengths to ensure optimum performance. ... generation under normal use. All TrueNet cords are 100% performance tested and factory terminated to the proper lengths to ensure optimum performance. KRONE: 800-775-KRONE www.kroneamericas.com www.truenet-system.com. No...

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Tài liệu Security Considerations for Storage Area Networks pdf

Ngày tải lên : 14/02/2014, 16:20

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Báo cáo hóa học: " TCP-based window-size delegation method for TXOP Exchange in wireless local area networks" ppt

Ngày tải lên : 21/06/2014, 01:20

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Báo cáo hóa học: " Research Article Secure Precise Clock Synchronization for Interconnected Body Area Networks" doc

Ngày tải lên : 21/06/2014, 05:20

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Báo cáo hóa học: " Research Article Titan: An Enabling Framework for Activity-Aware “Pervasive Apps ” in Opportunistic Personal Area Networks" pptx

Ngày tải lên : 21/06/2014, 07:20

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Báo cáo hóa học: " Research Article Experimental Characterization of a UWB Channel for Body Area Networks" potx

Ngày tải lên : 21/06/2014, 07:20

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Báo cáo hóa học: " Research Article Frame-Aggregated Link Adaptation Protocol for Next Generation Wireless Local Area Networks" pot

Ngày tải lên : 21/06/2014, 17:20

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báo cáo hóa học:" A power efficient MAC protocol for wireless body area networks" pot

Ngày tải lên : 21/06/2014, 17:20

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C++ 2005 For Dummies

Ngày tải lên : 20/08/2012, 11:43

... Application Wizard makes the disk light blink for a few seconds before opening a blank Form1 in the middle of the display. Building and running your first Windows Forms program After the Application Wizard ... with the tab Form1.cs [Design] (refer to Figure 1-4). This is the Forms Designer window. The Forms Designer is a powerful feature that enables you to “paint” your program into the form. When you’re ... rec- ommend the SharpDevelop utility for full-scale development of commercial programs, but it’s useful for writing small applications or making a quick change without waiting for Visual Studio to boot...

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Low Rate Wireless Personal Area Networks

Ngày tải lên : 13/09/2012, 10:52

... personal area network (WPAN) – Group of technologies that are designed for short- range communications – Eliminates the need for wires or cables to interconnect multiple devices • Applications for ... shift to FIR speed Wireless Communications Low Rate Wireless Personal Area Networks 2 Objectives • Describe a wireless personal area network (WPAN) • List the different WPAN standards and their ... type of connection • IrDA specification makes no provision for encrypting data or protecting the connection – Users may encrypt a file before exchanging it • IrDA devices support open access – So...

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High Rate Wireless Personal Area Networks

Ngày tải lên : 13/09/2012, 10:52

... 802.15.3-2003 is a WPAN technology – Optimized for multimedia voice and video signals • The WiMedia protocol stack has two upper layers – One for audio/video and one for data transfer applications • The ... Wireless Personal Area Networks Wireless# Guide to Wireless Communications 36 Competition Among WPAN Standards • IEEE 802.15.3 and .3a are positioned to compete with Bluetooth for market share – It ... Works • UWB PHY – Digital signals need to be spread over a wide band • Using techniques such as FHSS or DSSS – UWB uses short analog pulses for signaling • Does not rely on traditional modulation...

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Wireless Local Area Networks

Ngày tải lên : 13/09/2012, 10:52

... BSS wireless networks installed in same area – Provides users with uninterrupted mobile access to the network • All wireless clients and APs must be part of the same network – For users to ... communicate among themselves Wireless Communications Wireless Local Area Networks 4 WLAN Components • Minimal hardware needed for a WLAN – Computer – ISP – Wireless network interface card – Access ... that attracts the most attention today – Radio frequency (RF) wireless local area networks (WLANs) • Wireless NIC performs same functions as wired NIC • Access points parts – Antenna – Radio transceiver – RJ-45...

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Wireless Metropolitan Area Networks

Ngày tải lên : 13/09/2012, 10:52

... subscriber stations (SS) • WiMAX Forum – Promotes the implementation of 802.16 by testing and certifying equipment • WiMAX stands for worldwide interoperability for microwave access 12 Local ... WMAN? • Wireless metropolitan area networks (WMANs) – Provide wireless connectivity across a substantial geographical area such as a large city • WMANs primary goals – Extend wired networks beyond a single ... to an entire area with only a few radio transmitters – MMDS cell size can have a radius of up to 35 miles (56 kilometers) 2 Objectives • Explain why wireless metropolitan area networks (WMANs)...

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