Troubleshooting Remote Access Networks (CCIE Professional Development)

Index

[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z]

D (Delta) channel

    ISDN

         ISDN:D channel;signaling:ISDN:D channel

D channel

     testing 2nd

D channel (ISDN)

     Layer 1 2nd 3rd

         devices 2nd

         interfaces 2nd 3rd

     Layer 2

         LAPD frame format 2nd 3rd 4th 5th 6th

         logical link establishment 2nd

     Layer 3

         Q.931 message format 2nd 3rd 4th

D channels

     TDM

D/C (data/control) bit (Frame Relay Address field)

DARPA (Defense Advanced Research Projects Agency)

data centers 2nd

Data Encryption Standard

Data field (LAPD frames )

Data field (PPP frames)

data link connection identifiers

data link layer

     troubleshooting ISDN BRI 2nd 3rd 4th 5th 6th 7th 8th

data link layer (OSI model)

data link layer protocols

    PPP

         authentication phase 2nd 3rd

data link layer troubleshooting

     Frame Relay

         LMI issues 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th

         misconfigured PVCs 2nd 3rd 4th 5th 6th 7th 8th 9th

data link layer VPNs 2nd

     L2TP 2nd

     PPTP 2nd 3rd

data transmission

     over CATV

         standards 2nd 3rd 4th 5th

data-link layer protocols

     PPP

         Authentication phase

         frame fields 2nd

         LCP, troubleshooting 2nd 3rd 4th 5th 6th 7th 8th

         Link Dead phase

         Link Establishment phase 2nd

         Link Termination phase

         Network Layer Protocol phase

         troubleshooting

dB (decibel)

DBS

     BST

     IPA

     LEO satellitesLEO satellites

DBS (Direct Broadband Satellite)

DBS systems

     BST protocol

     FITFEEL protocol

     IPSec 2nd

     manipulating TCP stack 2nd

     performance

     VPNs 2nd

         bandwidth 2nd 3rd 4th

         error control coding

DDR 2nd

     configuring 2nd 3rd 4th 5th 6th

         with backup interfaces

         with dialer watch

         with floating static routes

     dialer profiles

         configuring 2nd 3rd 4th 5th 6th 7th 8th

    Windows 2000

         troubleshooting 2nd 3rd 4th 5th 6th 7th 8th 9th 10th

DDS (Dataphone Digital Service)

DE (discard eligible)

DE (discard eligible) bit (Frame Relay Address field)

debug bri command 2nd

debug information

     timestamping 2nd

debug interface serial command 2nd 3rd

debug isdn q931 command 2nd 3rd

debug ppp authentication command

debug ppp negotiation command 2nd 3rd

debugging

    Cisco Easy VPN client connection

         IPSec key events 2nd

     Frame Relay LMI 2nd

     Frame Relay serial interfaces 2nd

Defense Advanced Research Projects Agency

defining service levels

delivered erroneous frames

demand circuits (OSPF)

demodulation

dense mode (PIM)

     Frame Relay multicast configuration 2nd

design objectives

     of remote access VPNs 2nd

design parameters

    Frame Relay

         CIR 2nd 3rd 4th 5th 6th

design solutions

    ISDN

         hub and spoke

designing

    Frame Relay networks

         parameters 2nd

    ISDN networks

         IP pools 2nd 3rd 4th 5th

         MLP 2nd 3rd 4th 5th 6th

         MMP 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th

         NAT 2nd 3rd 4th 5th 6th 7th

         PAT 2nd 3rd 4th

         per- user configuration 2nd 3rd 4th

    remote access services

         provisioning enterprise services 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 16th

Destination Unreachable messages (ICMP) 2nd

detecting

     dirty phone lines 2nd

     shorts in modem cables

     source of frequent disconnections

devices

    AS5200 routers

         commands 2nd

    AS5300 routers

         commands 2nd 3rd 4th 5th 6th 7th

    AS5400 routers

         commands

     AS5x00 routers 2nd 3rd 4th

     cable modems

     codecs

     Frame Relay

     ISDN 2nd

         switch types 2nd

     modems

         56-k flex modems

         analog

         analog dialup services 2nd 3rd 4th 5th

         bandwidth 2nd

         cable modem services 2nd

         connection speeds

         digital

         malfunctioning 2nd

         PCM

         Shannon's limit

     repeaters

DH algorithm 2nd 3rd 4th

DHCP servers

    reachability

         verifying

dial peers

     creating 2nd

dial-back authentication

dial-in

    large-scale dial-in

         configuring 2nd 3rd 4th 5th 6th 7th 8th 9th

    PPP dial-in

         configuring 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th

         network design 2nd

    text dial-in

         configuring 2nd 3rd

         network design

    troubleshooting procedure

         verifying incoming connection type 2nd 3rd 4th

         verifying modem operability 2nd 3rd

         verifying PPP negotiation 2nd 3rd 4th 5th 6th 7th 8th 9th

dial-on demand backup routing

    configuring

         with backup interfaces

         with dialer watch

         with floating static routes

dial-out

     ISDN 2nd 3rd 4th

    large-scale

         network design 2nd

    large-scale dial-out

         configuring 2nd 3rd 4th

    PPP dial-out

         configuring 2nd 3rd 4th 5th

         network design

    text dial-out

         configuring 2nd 3rd 4th 5th 6th 7th 8th

         network design

     troubleshooting procedure 2nd 3rd 4th 5th 6th 7th 8th 9th

dial-up

    authentication

         PAP

         servers 2nd

     PPP

         Authentication phase

         frame fields 2nd

         Link Dead phase

         Link Establishment phase 2nd

         Link Termination phase

         Network Layer Protocol phase

         troubleshooting

dialer maps

dialer profiles 2nd

     configuring 2nd 3rd 4th 5th 6th 7th 8th

dialer watch

     DDR configuration

dialup

     800 toll-free numbers

    authentication time outs

         troubleshooting 2nd 3rd 4th

    disconnections

         troubleshooting 2nd 3rd

    retrains

         troubleshooting 2nd 3rd

dialup services

     analog 2nd 3rd 4th 5th

         limitations of 2nd

     Frame Relay 2nd

         benefits of 2nd

         limitations of

         standards 2nd

     ISDN

         benefits of 2nd 3rd

         limitations of

diffused-beam WLANs

digital modems

digital pads

     echo cancellation 2nd

digital sampling

     Nyquist's sampling theorem

digital transmissions

     clocking

digital-to-analog converters

digitalization

     of voice

Direct Broadband Satellite

direct-beam WLANs

dirty phone lines

     as source of slow line speeds 2nd

discard eligible (DE)

disconnections

     troubleshooting 2nd 3rd

Discrete Multi-Tone

displaying

     Cisco Easy VPN client status 2nd

     ISDN BRI service layers 2nd 3rd

distance vector routing protocols

     size estimate

DLCI

    mismatched settings

         troubleshooting 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th

DLCIs

     assignments 2nd

     CIR

         aggregate CIR 2nd

         asymmetrical CIR

         flexible CIR

         zero CIR

     per interface limitations 2nd

DLCIs (data link connection identifiers)

     channel assignments 2nd

DMT

     CAP

     SF structure

DMT (Discrete Multi-Tone) 2nd 3rd

DOCSIS 2nd

DOCSIS (Data-Over-Cable Service Interface Specifications)

DOCSIS 1.1 standard

     satellite communications

DoD (Department of Defense) interconnection model 2nd

down interfaces

    Frame Relay

         new installs :troubleshooting 2nd

down protocol layer

    Frame Relay

         new installs:troubleshooting 2nd 3rd 4th 5th 6th

DPD (Dead Peer Detection) 2nd

dropped calls

    ISDN

         22 second issue, resolving 2nd 3rd 4th 5th 6th 7th 8th

DS0

DSL

     coding schemes 2nd

     PPoE

         discovery stage

         negotiations 2nd 3rd

         session stage

     xDSL services 2nd

         ADSL

         CDSL

         FDIs 2nd

         HDSL

         IDSL

         RADSL

         SDSL

         TDRs 2nd

         VDSL

DSLAMs

DSSS