ccie routing and switching official exam certification guide 4th edition

... Trang 2CCIE Routing and Switching v4.0 Quick Reference Chapter 2 Bridging and LAN Switching 11 Chapter 3 IP Addressing 30 Chapter 4 IP Routing 55 Chapter 5 Quality ... Trang 8Routing TableThe routing table has been the principal element of IP routing and the primary goal of routing protocols to build and maintain for most of modern internetworking The main routing ... detect a routing loop during redistribution is to use the debug ip routing command This command shows all routing table activity as it occurs and demonstrates a loop condition through routing

Ngày tải lên: 27/10/2019, 21:43

... Standby command you ure for the interface config-Active Router Virtual Router Standby Router HSRP Group HSRP CCIE Routing and Switching Exam Quick Reference Sheets CCIE Routing and Switching Exam ... STP and theexact reason for IEEE’s creation of new versions of the protocol Lowest BID Root Bridge RP RP CCIE Routing and Switching Exam Quick Reference Sheets CCIE Routing and Switching Exam ... compatibilityreasons between Ethernet networks and Token Ring CCIE Routing and Switching Exam Quick Reference Sheets CCIE Routing and Switching Exam Quick Reference Sheets By Anthony Sequeira

Ngày tải lên: 17/11/2019, 08:31

... are the Routing Information Protocol (RIP), and Cisco's proprietary Interior Gateway Routing Protocol (IGRP), which uses bandwidth and delay Link State Routing Protocols Link State Routing ... OSPF and NLSP Distance Vector – Routing protocols that use hop counts to select the best path Examples are RIP and IGRP Distance vector routing protocols are best for small networks Switching ... (IPv6) 33 IP Routing 34 Routing Protocol Concepts 34 Distance-Vector Routing Protocols 34 Link State Routing Protocols 34 Hybrid Routing Protocols 34 Distribution Lists 35 Routing Loops

Ngày tải lên: 12/10/2016, 13:02

... Street Indianapolis, IN 46240 CCNA Wireless Official Exam Certification Guide Brandon James Carroll Trang 3CCNA Wireless Official Exam Certification GuideBrandon James Carroll Copyright© 2009 Cisco ... Data: Carroll, Brandon CCNA wireless official exam certification guide / Brandon James Carroll p cm ISBN 978-1-58720-211-7 (hbk : CD-ROM) 1 Wireless LANs Examinations Study guides 2 Electronic ... Understanding the Free Path Loss Model 35 Understanding Absorption 36 Understanding Reflection 38 Understanding Multipath 39 Understanding Scattering 39 Understanding Refraction 40 Understanding

Ngày tải lên: 04/07/2014, 18:20

... for the same wavelength and the same frequency Amplitude is the quantity or amount of energy that is put into a signal Folks like the FCC and European Telecommuni-cations Standards Institute (ETSI) ... plan and adjust your deployment accordingly In this section, you learn about the Free Path Loss model, ab-sorption, reflection, scattering, multipath, refraction, and line of sight Understanding ... 10Figure 3-8 Directional Antennas and Line of SightCurvature of the earth Figure 3-9 Directional Antennas and LOS with Obstructions Note: You can find a neat Java-based example of refraction at http://www.phy.hk/wiki/

Ngày tải lên: 04/07/2014, 18:20

... WPANs usually fall into the unlicensed 2.4-GHz spectrum and are standardized by the 802.15 IEEE workgroup A WPAN study group was formed in 1998, and two months later a Bluetooth Special Interest Group ... 802.11a, have followed Now the 802.11a, b, g, and n WLAN standards are commonly found in networks around the world The frequency spectrums used by 802.11a/b, g, and n are all unlicensed Trang 3Because ... makes WLANs flexible is the fact that the APs and clients are dual-band This makes it easy to deploy different transmission methods in different areas, and most clients can still operate WMAN A wireless

Ngày tải lên: 04/07/2014, 18:20

... does it for you Figures 5-3 and 5-4 show different views of the wireless signal Figure 5-3 shows how the wireless signal might propagate if you were standing above it and looking down on the antenna ... Figures 5-15 and 5-16 show the H-plane and E-plane Notice that the radiation pattern is not 360 degrees, even on the H-plane However, a bit of signal is seen behind the antenna This is normal and usually ... area of an antenna The first is to place the AP in a location and walk around with a client recording the signal-to-noise ratio (SNR) and Received Signal Strength Indicator (RSSI) This could take

Ngày tải lên: 04/07/2014, 18:20

... are within government guidelines for EIRP Other vendors use connectors such as the Subminiature version A (SMA) and its variants, the RP-SMA and SMA-RS You also find MC and MMCX connectors on ... least the section for this chapter, and complete the tables and lists from memory Appendix C, “Memory Tables Answer Key,” also on the CD, includes completed tables and lists so that you can check ... antenna offered by Cisco This yagi is a high-gain antenna at 13.5 dBi Its H-plane and E-plane are shown in Figures 5-20 and 5-21, respectively Table 5-6 shows the details of the AIR-ANT1949 yagi Key

Ngày tải lên: 04/07/2014, 18:20

... external antenna, and UNII-3 was designed for outdoor bridges and external antennas The FCC revised the use of the frequency in 2004 by adding channels and requiring com-pliance of DFC and TPC to avoid ... frequency ranges of each of the UNII bands.In the 802.11a spectrum, the higher-band channels are 30 MHz apart This includes UNII-2 and above The lower bands are UNII-20 MHz apart 802.11a Power ... are unavailable and that they do not need to use protection mechanisms Table 6-4 The 802.11g Protocol RF Technology DSSS and OFDM Frequency Spectrum 2.4 GHz Modulation DBPSK and DQPSK Data Rates

Ngày tải lên: 04/07/2014, 18:20

... (CF-Poll) and acknowledges receipt of the client data (CF-ACK) Other variations exist, but from these examples you should have a decent understanding of PCF operation Power Save Mode and Frame ... speed The AP advertises mandatory speeds at which a client must be able to operate You can use other speeds, but they are not mandatory For example, 24 Mbps might be mandatory, but an AP might ... at cordless phone technology and why it interferes with WLANs Bluetooth: Discusses Bluetooth and its standardi-zation progression ZigBee: Shows how ZigBee is used and how it i nterferes with WLANs

Ngày tải lên: 04/07/2014, 18:20

... Telecommunica-tions (DECT) standard DECT is an ETSI standard for digital portable phones and is found in cordless technology that is deployed in homes and businesses Currently, the DECT standard is a good ... last mile wireless broadband access as an alternative to wired broadband like cable and DSL WiMAX provides fixed, nomadic, portable and, soon, mobile wireless broadband connectivity without the ... technology relates to WLANs and how it might inter-fere The answer is that ZigBee operates in the ISM bands: 868 MHz in Europe, 915 MHz in countries such as the U.S and Australia, and 2.4 GHz pretty much

Ngày tải lên: 04/07/2014, 18:20

... command. In Example 9-1, VLANs 10 and 20 are created on the 3750 switch seen in Figure 9-11 These VLANs are used for the trunk interfaces between the AP and switch, switch and controller, and ... Devices, Part 2 (ICND2): (CCNA Exam 640-802 and ICND Exam 640-816), 3rd Edition, published by Cisco Press. ■ Normal-range VLANs are identified with a number between 1 and 1001 VLAN numbers 1002 through ... the same native VLAN Configuring VLANs and Trunks To configure VLANs and trunks to support your wireless topology, first understand your topology By understanding your topology, you will see where

Ngày tải lên: 04/07/2014, 18:20

... controller and the APs On one side, the APs handle the real-time portion and time-sensitive packets On the other side, the controller handles the packets that are not time-sensitive The AP handles ... together It’s no longer about point products, where you can buy a standalone AP and deploy it and then later get management software to handle it Today it is all about everything working together to ... antenna in a hazardous location and the AP elsewhere You might see this type of AP in factories and hospitals It has 64 MB of DRAM and 32 MB of flash memory It has 2.4-GHz and 5-GHz radios The 1300

Ngày tải lên: 04/07/2014, 18:20

... devices and RFID tags It helps track thousands of devices Trang 6Table 10-4 Key Topics for Chapter 10Paragraph from the section “Features of the Cisco Controllers” Lists detailing access point and ... Complete the Tables and Lists from Memory Print a copy of Appendix B, “Memory Tables” (found on the CD) or at least the section for this chapter, and complete the tables and lists from memory ... chassis has two power supply slots The controller code version used for the CCNA Wireless exam is version 5.x, and the AP runs the same version It’s actually a requirement that they run the same version,

Ngày tải lên: 04/07/2014, 18:20

... such as data rates and sup-ported PHY types, radio channels, and power levels Step 7. After the provisioning phase is completed, the AP and WLC enter the LWAPP runtime state and begin servicing ... might issue various commands to the AP through LWAPP control messages These commands might be provisioning commands or requests for statistical information that the AP collects and maintains Trang ... Ethernet frame, and then forwards the frame onto the appropriate wired network, typically adding an 802.1Q VLAN tag Step 5. The packet then travels through the wired switching and routing infrastructure

Ngày tải lên: 04/07/2014, 18:20

... the other For example, AP-1 points to WLC1 as its primary and WLC2 as its secondary AP-2 points to WLC2 as its primary and WLC1 as its secondary Load balancing is desired between APs and controllers ... controller, and vice versa In other words, Controller2 needs to be configured with Controller3’s MAC and management IP addresses, and Controller3 needs to be configured with Controller2’s MAC and IP ... iMesh for indoor APs and a mesh for outdoor APs Trang 4Chapter 11: Controller Discovery and Association 205Table 11-2 Key Topics for Chapter 11 List in the section “Understanding the Different

Ngày tải lên: 04/07/2014, 18:20

... sure that the source address and source interinter-face appear in the routing table and match the interface on which the packet was received Also, following RFC 3837 and some other antispoofing ... data keeps flowing, sessions stay active, and life is good Key Topic Trang 5Both intracontroller roaming and intercontroller roaming allow the user to roam and re-main on the same IP subnet This ... transmitting data and decides to go work at a local coffee shop that offers wireless network access After buying a $5 cup of coffee and settling down into a cushy sofa, he fires up his laptop and continues

Ngày tải lên: 04/07/2014, 18:20

... into the controller interface and start to create wireless LANs, much of your understanding will fall into place Trang 9230 CCNA Wireless Official Exam Certification GuideConnecting to the Controller ... association five times Trang 7228 CCNA Wireless Official Exam Certification GuideFoundation Topics Controller Terminology Now that you have some understanding about the different types of controllers ... details the major topics discussed in this chapter and their corresponding quiz questions Trang 3224 CCNA Wireless Official Exam Certification Guide1. Which of the following describes a port as

Ngày tải lên: 04/07/2014, 18:20

... xxv Foreword CCSP SNPA Exam Certification Guide, Third Edition, is an excellent self-study resource for the CCSP SNPA exam. Passing the exam validates the knowledge and ability to configure, operate, and manage ... interface Command 142 security-level Command 143 nameif Command 144 ip address Command 145 nat Command 146 Configuring Port Address Translation 147 speed Command 148 duplex Command 148 nat-control ... you really understand each topic—until you take the exam, and then it might be too late. Figure I-1 Completing the Chapter Material Certification Exam and This Preparation Guide The questions...

Ngày tải lên: 03/06/2014, 01:40

... frame, and places a frame on Ethernet 2 (data link). Host 2 receives bits (physical) from the Ethernet cable and converts the bits into a frame (data link). Then, the IP protocol is examined and ... compression schemes, and encryption schemes. Voice coding schemes are specified at this layer. CCIE. book Page 22 Friday, June 14, 2002 3:57 PM Numeric Conversion 29 The CCIE candidate needs to ... 255 on the CCIE written exam because the upper limit of IP addresses in dotted decimal format is 255, although Token Ring numbers do reach 4096. Some examples follow. Conversion Example 5:...

Ngày tải lên: 20/01/2014, 01:20