Index_J-L

J-L

Jackson, Charles, 292

jamming, 117-118

jitter, 122, 127, 178, 186

Joltage, 284

Kasami codes, 22

Kerberos in, 99-102, 100

key management and security, 63-65

label distribution protocol (LDP), 137

label switched paths (LSP), 134, 137

label switching router (LSR), 136-137

label switching using multiprotocol label switching (MPLS) in, 127, 134-139

Lamar, Hedy, 20-21

LAN jacking, 62

land mobile radio, interference and, 315

last mile problems, 6, 330

latency (see also delay), 106, 140-142, 175-177

layer 2 tunneling protocol (L2TP), 98

layered office hotspots, 261-262, 262

layering, private networks made public using, 286-288, 287

LEAP, 92

lighting, as source of interference, 264

lightning protection, antennas, 246

lightweight directory access protocol (LDAP), 90, 167

line of sight, 118-121, 120

Fresnel zone and, 119-121, 213, 214-215, 214, 224

overcoming limitations to, 253-254, 254

link budget, 204-205, 213, 216-224

antenna and transmitter gain in, 217

antenna gain in, 218

attenuation in, 220-224

coax and connector loss in, 219-220, 219

diffraction loss, 219

fade margin in, 218-219

link margin in, 218-219

path loss in, 218

site plan prediction tools in, 224

site survey in, 224-226

link margin, 218-219

link type, 203

Linksys, 234

local area networks (LAN), 158, 268

local exchange carriers (LEC), 5, 235

local loop, 2-3, 48, 278

local multipoint distribution service (LMDS), 48, 50-51, 52

local offices (see central offices)

local television transmission service (LTTS), 315

Lockheed Martin Global Telecommunications (LMGT) evaluation of VoIP, 187-188

logical link control (LLC)

media access control (MAC) and, 27

quality of service (QoS) and, 148-149

logs, security, 265

long range Ethernet (LRE) routers, 260

loss or theft of equipment, 76

LoveBug virus, 76

low noise amplifiers (LNA), 45-46

Lucent, 235, 251