collapsed backbone, 338
collision, 193, 195
collision domain, 215
committed burst size, 535
Communication Server, 571
community string, 608
concentrator, 53, 211, 275
Configuration Management, 584, 586
configuration switching, 281
Connected, 392
connection-oriented, 155
connection-oriented protocol, 68
connectionless, 155

protocol, 69
CONS, 441

containment tree, 613
control, 190

Convergence Sublayer (CS), 549
core backbone network, 417
CoreBuilder, 448

3500, 441, 449
6012, 446
, 509
CRC, 158
CSMA/CD, 193, 197-198,206,212,

239,254
Customer Premises Equipment

(), 461
cut-through, 303
Cyclic Redundancy Check

(CRC), 158

D

data, 435

Data Link Layer, 184

Data Terminal Equipment

(DTE), 111, 246
datagram, 68
decibel (dB), 117
DCE, 111, 461
DEC LAT, 443
DECnet, 190, 441
dedicated, 165
default, 352, 395
Definition Knowledge, 613

_________     645

delay, 385

Demand Priority, 239, 249
Demand Priority Access LAN, 187
Department of Defense (DoD), 81
destination address, 435
Destination Address (DA), 202
Destination IP Address, 386
Destination Service Access Point

(DSAP), 190
dial-up access, 502
Digital, 186, 201

Digital Cross-Connect (DCS), 482
Digital Signal Processor (DSP), 258
Digital Suscriber Line (DSL), 511
Discard Eligibility (DE), 536
Distance Vector Algorithms

(DVA), 356

Distinguished Name (DN), 613
DLCI, 534
DLE, 152
DLSw, 444
DMA, 273
DN, 613
DNIC, 526
DNS, 363

, 368

, 381

, 382

, 381, 394

, 381
domain, 379
Domain Name System (DNS), 50, 368,

381

Don't Fragment (DF), 408
draft, 81

DSAP, 190, 204
DSL, 577
DSn, 477
DSP, 272, 475
DSU/CSU, 461, 489
DTE, 111, 460

Dual Attachment (DA), 233
Dual Attachment Concentrator

(DAC), 233

Dual Attachment Station (DAS), 233
Dual Homing, 235