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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
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