Network Coordi- Remote concentrators (terminals), 28-29, 117, 331 nation Center), 250 Repeaters RIRs (regional Internet registries) choosing media type, 43 interior routing protocols, 260 spacing with fiber optics, 73-74 in IPv4, 272 spacing with microwave, 56 overview of, 250 spacing with twisted-pair, 45 Rivest Cipher 4 (RC4), 376 Requests for comments (RFCs), 248 Rivest, Shamir, and Adelman (RSA) algorithm, 379 Research backbones, 291-292 RNC (radio network controller), IMS, 700 Reserved bandwidth, 410 ROADMs (reconfigurable optical add/drop multi- Reserved class, IPv6, 275 plexers), 455, 464 Residential gateway access, 503 Roamfest, 595 Resilient Packet Ring, 479, 482-483 Robbed Bit Signaling (RBS), 121 Resistance, and DSL, 495 Robo Mower, 1 Resolvers, for domain names, 281 Robot CAs (Robot Certificate Authorities), 380 Resource Reservation Protocol (RSVP), 301-303, Robot squads, intelligent, 1-lii 441-442 Round-trip time (RTT), 707 Retail ISPs, 293 Routers REVd (IEEE 802.16a Revision d), 623-624 IP, 239 Reverse Address Resolution Protocol (RARP), 258 LAN, 194-198 RF (radio frequency), 556 OSPF, 261 Index Routers, continued overview of, 253 S-DMB (Satellite DMB), 632-633, 709 programmed as firewall, 374 SA (stub area), 260 ZigBee FFD as, 671-672 Sample, defined, 119 Routing Satellite, 61-73 dynamic alternative, 210-211 advantages/disadvantages of, 72-73 overview of, 86-87 applications of, 70-72 packet switchers, 93 characteristics of, 43 tables, 196-197 DTV, 400 Routing Information Protocol (RIP), 259, 274 frequency allocations of, 63-65 Routing protocols, 258-264 imaging, emerging solutions, xxxii distance-vector VS. link-state, 259 network segments, 65-66 exterior, 262-264 orbits, 66-70 GMPLS using, 485-486 overview of, 61-63 interior, 260-262 shrinking earth stations, 65 TCP/IP supporting many, 265 Satellite DMB (S-DMB), 632-633, 709 Routing Table Maintenance Protocol (RTMP), Scanning, 403-404 SCPs (service control points), 133-134 RPE LTP (Regular Pulse Excitation Long Term SCTP (Stream Control Transmissi