795
convergence issues, 365
conversion, decimal-to-hexadecimal-to-binary
values, 777785
copy command, 39, 56
copy nvram tftp command, 186187
copy running-config startup-config command, 187
copy startup-config running-config command, 53
copy startup-config tftp command, 186187
copy tftp command, 179
copy tftp flash command, 4950, 697
copying switch configuration files from
TFTP servers, 179
Core layer (WANs), 592593
counting to infinity, 378382
courses
BCMSN, xx, 6
BCRAN, 6
BSCN, xx, 6
CID, 7
CIT, 6
DCN, 6
ICND, xxxxi, 6
CCNA exam strategies after taking course,
1415
course summary, 1112
ICRC, CCNA exam strategies after taking
course, 1516
ITM, 11
versus exams, 7
CRC (cyclical redundancy check), 98
CRLS (Cisco Routing and LAN Switching) course,
See
ICND
CSMA/CD, 95, 135
drawbacks of, 135
shared Ethernet, 135
Ctrl+a key command, 55
Ctrl+b key command, 54
Ctrl+e key command, 55
Ctrl+f key command, 54
Ctrl+n key command, 54
Ctrl+p key command, 54
Ctrl+r key command, 55
Ctrl+z key command, 37
cut-through processing (switches), 152153, 203
cyclical redundancy check, (CRC), 98
D
D channel (ISDN), 675
data communications equipment (DCE), 531, 599
data flow control,
See
flow control
data-link connection identifier,
See
DLCI
data link layer (OSI reference model Layer 2),
7778, 113
addressing, 9698
arbitration, 9596
encapsulated data, identifying, 98102
encapsulation, 81, 8384
error detection, 98
functionality, 94, 102, 116
ISDN specifications, 568
Data Services Unit/Channel Services Unit, (DSU/
CSU), 521, 529, 597
data terminal equipment (DTE), 96
datagrams, 85
See also
packets
data-link connection identifier,
See
DLCI
DCE (data communications equipment), 531, 599
DCN (Designing Cisco Networks), 6
DDR, (dial-on-demand routing), 574575
connection termination, determining, 586
determining the subset of packets that trigger
dialing, 582583
dialer profiles configuration method, 580581
dialing, 583585
legacy configuration method, 580581
routing packets out the interface to be dialed,
581
DE (discard eligibility), 531, 600
debug command, 3234
debug dialer command, 580, 596
debug dialer events command, 589
debug dialer packets command, 589
debug frame-relay command, 552, 597
debug frame-relay events command, 561562
debug frame-relay lmi command, 559
debug ip icmp command, 281
debug ip igrp event command, 381382, 417
debug ip igrp events command, 374, 419
debug ip igrp transaction command, 381382,
417, 673
debug ip igrp transactions command, 374, 419,
666, 687
debug ip igrp transactions command
fmix.fm.4D3 Page 795 Monday, March 20, 2000 5:26 PM