W

WAAS (Wide Area Application Services)

software, 184 WAE (Wide Area Application Engine), 184 WAN (Wide Area Networks), 4

ATM, 301, 315 backups dial backup routing, 338 Internet, 341-343

permanent secondary links, 338-339 shadow PVC, 340 bandwidth, 339

congestion avoidance, 329-330 data compression, 322-324 ECN, 329-330 link utilization, 325-329 MLP, 324 PPP, 324 queuing, 325-329 RED, 329

traffic policing, 330-331 traffic shaping, 330-331 window size, 324-325 WRED, 329 bridged wireless technologies, 310 cable cable modems, 308 CATV transmissions, 309 dark fiber, 314-315 data flows, 309 DOCSIS, 309 uBR, 308 CDMA, 310

cell-switched networks, 296 circuit-switched networks, 13, 295-296 contracts, 315 designing application requirements table, 317 bandwidth, 320-321 characterizing existing networks/sites, 316

cost-effectiveness evaluations,

321-322 customer requirements, 316 maximum offered traffic, 319 network topologies, 316 packet loss, 318 reliability, 318

response times, 318 throughput, 318 trade-offs, 316

ADSL, 304-307 G.SHDSL, 305 HDSL, 305 IDSL, 305 LRE, 307 SDSL, 304 VDSL, 305 xDSL, 304 DWDM, 313

Enterprise Branch networks, 353-355 large branch office design, 361-362 medium branch office design, 360 small branch office design, 356-358 Enterprise Edge networks, 343 availability in, 344 Cisco IOS Packaging, 348-352 hardware selection, 348 IP VPN, 346 ISP, 345-346

MAN architecture comparison chart,

346-347 network growth, support for, 344 network segmentation support, 345 operational complexity, 344 operational expenses, 344 private connectivity migration, costs from, 345 Private WAN, 345 self-deployed MPLS, 346 software selection, 348 SP MPLS, 346 video support, 344 voice support, 344 Enterprise Teleworker networks, 353-354,

362-364 fast switching, 340 Frame Relays, 300, 315 GPRS, 310 GSM, 310

interconnections, 294-295 investments, costs of, 294 ISDN, 300

leased lines, 12, 295, 299-300 leased WAN, 321 Metro Ethernet, 304, 315

mobile wireless technologies, 310 MPLS

FEC, 301 FRR, 303

Label Distribution Protocol, 302 LSP, 302 LSR, 301-303 multiprotocol support, 303 QoS support, 303 traffic engineering, 303 VPN, 303, 315, 337 multisite WAN

centralized call processing designs (IP

telephony), 511-512 distributed call processing designs (IP telephony), 513-514 packet-switched networks, 12, 296-298 private WAN, 321 process switching, 340 protocols, 6

remote access network design, 332

routing, hierarchical network design, 139

services, 293

shared WAN, 321-322

SLA, 294

SONET/SDH, 311-312 SP, 293 standards, 11 tariffs, 293, 315 TDM, 299-300 transport technologies comparison table, 298-299 costs of, 314 UMTS, 310 usage, costs of, 294 VPN design

Access VPN, 333 benefits in, 337 Extranet VPN, 334 Intranet VPN, 333 Overlay VPN, 334-335 P2P VPN, 337 VPDN, 335-336 WLAN, 310 WAN (Wide-Area Networks)

Private WAN, Enterprise Edge network architectures, 345 protocols, 847

services large branch office architectures (Enterprise Branch architectures), 362

medium branch office architectures (Enterprise Branch architectures), 360

small branch office architectures (Enterprise Branch architectures), 358

wireless WAN, 565 WAN and MAN and Site-to-Site VPN module

(Enterprise Architecture), 144, 154 WCS (Wireless Control Systems), outdoor wireless network design considerations, 632 web services, Enterprise Data Center networks, 271 WFQ (Weighted Fair Queuing), 326-328 wildcard masks, 823 windowing (TCP), 22 wireless AP (Access Points), 182 wireless cabling, Enterprise Campus networks, 232 wireless networks, 565

agencies and standards groups, 570-571 branch office networks, design considerations, 638-642 campus networks, design considerations, 635-638

IEEE 802.11 operational standards, 571 802.11 versus 802.3 Ethernet LAN,

576-577 802.11a in 5-GHz band, 575 802.11b in 2.4-GHz band, 572-574 802.11g in 2.4-GHz band, 572-574 MAN, 565

outdoor networks, design considerations,

631-635 PAN, 565 RF

absorption, 567 dB, 568 dBi, 569 dBm, 568-569 dBw, 569 diffraction, 567 gain, 568-570 loss, 568 multipaths, 567

reflection, 567 refraction, 567 scattering, 567 UWN, architecture of, 581-585 WAN, 565 WLAN, 565

antennas, 570, 573 AP power, 578-579 AP, BSS, 579 AP, SSID, 579 autonomous AP, 578 Cisco Compatible clients, 577 lightweight AP, 578, 582-585 roaming, 579 security, 580-581 topologies, 577 wireless routers (SOHO), 685 wireless services (Enterprise Architecture), 181-183

WLAN (Wireless Local Area Networks), 181, 565-566

802.11 operational standards, 571

IEEE 802.11 versus 802.3 Ethernet

LAN, 576-577 IEEE 802.11a in 5-GHz band, 575 IEEE 802.11b in 2.4-GHz band,

572-574 IEEE 802.11g in 2.4-GHz band, 572-574

agencies and standards groups, 570-571

antennas, 570, 573

AP power, 578-579

autonomous AP, 578

centralized components, 182-183

Cisco Compatible clients, 577

controller lists, 599

lightweight AP, 578, 582-585

absorption, 567 dB, 568 dBi, 569 dBm, 568-569 dBw, 569 diffraction, 567 gain, 568-570 loss, 568 multipaths, 567

reflection, 567 refraction, 567 scattering, 567 roaming, 579 security, 580-581 topologies, 577 UWN

AP, Poletop MAP, 632

architecture of, 581-587

branch office wireless networks design considerations, 638-642 campus wireless networks design considerations, 635-638 dynamic load balancing, 622 guest services design considerations,

628-629 lightweight AP, 597-602 LWAPP architectures, 588-589 mobility groups, 607-608 outdoor wireless networks design considerations, 631-635 RF grouping, 612 RF site surveys, 615-621 roaming, 602-606, 609 RRM, 610-611 self-healing AP, 613 WLC, 590-596, 600-601, 622-628 WAN, 310 WLC, 182

WLC (Wireless LAN Controllers), 182, 590, 599

AP support scalability, 594

LAG with single AP-manager interface, 596 multiple AP-manager interfaces, 595-596

branch office wireless networks, controller placement, 642 campus wireless networks, 635-638 control messages, 600-601 deterministic controller redundancy, 624 N + 1 design option, 626 N + N design option, 627 N + N +1 design option, 628 dynamic controller redundancy, 622-623 interfaces, 590-591 mobility groups, 607-608

outdoor wireless network design considerations, 632 platforms, 592-594 ports, 590 WLAN, 590

WRED (Weighted Random Early Detection), 329, 539

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