Index_D

D

daemon processes, 626

damping

defined, 626

in EBGP, 505–511, 561–562

data circuit-terminating equipment (DCE), 626

data communications equipment (DCE), 71–72,

75, 78

data-link connection identifiers (DLCIs)

defined, 626

for Frame Relay, 71–73, 76

data service units (DSUs), 626

data terminal equipment (DTE)

defined, 626

for Frame Relay, 71–72, 75, 78

database description packets

defined, 627

for OSPF, 165

date command, 26

dcd (Device Control Daemon) interface process, 627

DCE (data circuit-terminating equipment), 626

DCE (data communications equipment), 71–72, 75, 78

deactivate interfaces command, 397–398

deactivate method, 627

deactivate protocols isis command, 418

deactivate unit command, 100

dead intervals, 627

debug all option, 500

decay half-life in damping, 505

default addresses, 627

default-lsa option, 190

default-metric option, 180, 191

default routes, 627

delays for NTP synchronization, 26–27

delete address command, 274

delete file messages authorization command, 20

delete keepalives command, 72

delete neighbor command, 390, 392

delete no-authentication-check command, 286

delete protocols bgp command, 404, 406

delete protocols bgp group command, 433

delete routing-options command, 39

delete routing-options aggregate command, 532

delete traceoptions command, 491

Denial of service (DoS) attacks

defined, 627

IS-IS settings for, 314

dense mode, 627

dense wavelength-division multiplexing (DWDM), 627

deny command, 10

deny-commands option, 18

Designated Intermediate System (DIS), 261–262, 278

Designated Routers (DRs)

defined, 627

for IS-IS, 278

for NBMA, 170–171

for OSPF, 166

destination keyword

for POS, 69

for PPP, 83

destination prefix length, 627

detail option

for communities, 431

for IS-IS, 262

Device Control Daemon (dcd) interface process, 627

DHCP (Dynamic Host Configuration Protocol), 628

Differentiated Services Codepoint (DSCP), 627

Diffie-Hellman public key scheme, 627

Diffserv Differentiated Service, 627

DIMMs (dual inline memory modules), 628

DIS (Designated Intermediate System), 261–262, 278

disable method, 628

disabled option, 506

discard command

defined, 628

in leaky bucket rate limiting, 120

discontiguous subnets, 194

distance vector-based routing

defined, 628

in OSPF configuration, 154

Distance Vector Multicast Routing Protocol (DVMRP), 628

Distributed Buffer Manager ASICs, 628

DLCIs (data-link connection identifiers)

defined, 626

for Frame Relay, 71–73, 76

DoS (Denial of service) attacks

defined, 627

IS-IS settings for, 314

Down adjacency state, 628

DRAM (dynamic random access memory), 628

drop profiles, 628

DRs (Designated Routers)

defined, 627

for IS-IS, 278

for NBMA, 170–171

for OSPF, 166

DSCP (Differentiated Services Codepoint), 627

DSUs (data service units), 626

DTE (data terminal equipment)

defined, 626

for Frame Relay, 71–72, 75, 78

dual inline memory modules (DIMMs), 628

duplicate RIDs, 64

DVMRP (Distance Vector Multicast Routing Protocol), 628

DWDM (dense wavelength-division multi

plexing), 627

Dynamic Host Configuration Protocol

(DHCP), 628

dynamic label-switched paths, 628

dynamic random access memory (DRAM), 628