Page 310 - Optical Switching And Networking Handbook

14_200023_Index 1/17/01 10:09 AM Page 295

Index 295

G I

germanium dioxide, 38 ICPs (Integrated Communications
Gigabit Ethernet Providers), metropolitan optical
corporate growth, 31 switching, 126
data rates, 30 ILECs (Incumbent Local Exchange
wire categories, 31 Carriers), fiberoptics usage, 23
graded index fiberoptics, 40 impairments to signal transmission, 35
growth rates increasing fiberoptic capacity, 160
Fast Ethernet, 30 infrared spectrum, signal transmission, 34
fiberoptics systems, 22 infrastructure
wavelength, 32 DWDM, scalability, 163
Gigabit Ethernet, 31 matching to bandwidth demand, 161
optical systems, 159 optical networks, buildout pace, 220
ink jet optical switching, 149–150
installation damage to cable, 50
H integrating SDH and SONET, 100

interfaces, daily communications, 98
HFC (Hybrid Fiber and Coaxial), 16 interleaving signals, SONET, 73
hierarchy of SONET transmission Internet
signals, 62 changes to packet switching
high-speed applications, 187, 190 technologies, 250
add-drop multiplexing, 188 DWDM, 247–248
hub and spoke SONET/SDH infrastructure changes, 239–241
connections, 193 legacy systems, 245
Internet SONET/SDH connections, migration from SONET to optical
196–197 switching, 246
point-to-multipoint SONET/SDH packet switching, 242
connections, 193 QoS, optical systems impact, 253–254
point-to-point SONET/SDH SONET/SDH high-speed applications,
connections, 190 196–197
ring SONET/SDH connections, 194–195 VoIP, 242
historical overview of optical IP (Internet Protocol), application
communications, 8 efficacy, 242
hub and spoke architecture IP over ATM over SONET, 199
multiplexing, SONET, 78 IP over DWDM, 199
SONET/SDH high-speed applications, 193 IP over SONET, 199