VoATM, 606
denial-of-service attacks (CBAC), 570
Dependent Logical Units (DLUs), 493
dependent LUs, 443, 493
deploying VLANs, 93, 95
DES (Data Encryption Standard), 576
design models
hierarchical model, 22
core layer, 23
distribution layer, 23-24
one-tier model, 26
redundant two-tier model, 27
router placement, 27
two-tier model, 26
ring model, 19-20
star model, 18, 20
two-tier model, 20
dual-backbone Token Ring, 513
FEPs, 512
Proxy Explorer, 515
devices
FEPs, 441
migrating to Cisco routers, 481
STUN tunneling, 482
Frame Relay, 366
ISDN, reference points, 395
LACs, 578
media, selecting, 57
connecting with routers, 392
PADs, 332
remote access, selecting, 408-409
routers, 85, 92
branch office routers, 410-412
BRI routers, 409
central site routers, 413-415
Cisco 3600 series, 415
DRs, 227
OSPF, 219
packet filters, 560-564
placement in hierarchical models, 27
PRI routers, 409
regional office routers, 412-413
telecommuter routers, 409-410
switches, 84-85, 90-92
Cisco/StrataCom IGX, 129
transceivers, 87
CoS, 602
CoS groups, 603
DID (direct inward dialing) trunks, traffic engineering,
digital certificates, VeriSign, Inc., 576
digital connectivity, ISDN, 393
functions, 394-395
IP unnumbered, 397-400
PRI, 396
reference points, 395
digital signatures, 574
Dijkstra algorithm, 218