dium phosphide), 470 Interlacing, 404 Input queue, 196 Intermediate second-generation wireless (2.5G), Instant Messaging and Presence Service (IMPS), 592-597 701-702 Intermediate System to Intermediate System Institute of Electrical and Electronics Engineers. (IS-IS), 259, 262 See IEEE (Institute of Electrical and Elec- Internal router (IR), OSPR, 261 tronics Engineers) International Data Encryption Algorithm (IDEA), 377 Integrated networks, 202 International gateway, 9, 113 Integrated photonic circuits, 469-470 International Mobile Telecommunications 2000 Integrated Services Digital Broadcasting. See ISDB (IMT-2000), 598-599, 606-608 (Integrated Services Digital Broadcasting) International Organization for Standardization Integrated Services Digital Network (ISDN). See (ISO), 166 ISDN (Integrated Services Digital Network) Internet, 245-307 Integrated Services (IntServ) access with N-ISDN, 214 defined, 301-302 challenges and changes, 289-291 RSVP architecture, 328-329 commercialization and, 148 Intelligent agents, xlvii convergence in, 415-416 Intelligent edge as corporate backbone, 149-150 broadband architecture, 428-431 DNS for, 280-284 multiservice, 432-437 governance of, 36-37 Intelligent highways, xli-xlii growth rate of, 245-246 Index history of, 247-251 Interrogator, RFID, 675 how it works, 251-254 Intranet IP QoS, 295-303 defined, 252 IP routing, 269-270 VPN, 354-355 IPv4 addressing, 271-275 IntServ (Integrated Services) IPv6 addressing, 275-280 defined, 299-302 network architectures, 264-268 RSVP architecture, 328-329 next-generation, 303-307, 410 Inverse multiplexing, 30-31 organization of, 284 Inverse Multiplexing over ATM (IMA), 503 packet switching, 85, 254 IP (Internet Protocol) POP architecture for, 285-289 ATM and, 241 protocols, 255-258 basic routing, 253 PSTN VS., 100-102 datagram structure, 255 regulation of, 249 evolution of, 248 routing protocols, 258-264 features of, 238-239 satellite backbones for, 71 hard phones, 321 service providers and interconnection, 291-294 Mobile IP, 693-695 straini