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]

L2TP 2nd

LAN-specific VPN issues

     inability to log in

     MTU settings 2nd 3rd 4th 5th

     NAT, multiple client handling

     packet size 2nd 3rd

LAN-to-LAN VPNs

LAPD 2nd

     Control field 2nd

     Data field

     FCS field

     Flag field

     frame format 2nd 3rd 4th 5th 6th

     logical link establishment 2nd

LAPF

     control protocol

         Control field 2nd

         Information field 2nd 3rd 4th 5th

     T1.618 frame format

         Address field 2nd 3rd

         fields

         Flag field

         logical frame processing

large-scale dial-in

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

large-scale dial-out

     configuring 2nd 3rd 4th

     network design 2nd

last mile 2nd

LATAs (local access and transport areas)

layer 1/2 status of PRI circuits

     verifying 2nd 3rd 4th

Layer 3 tunneling

layer architecture

    ISDN

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

         C-plane

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

         Q.931 2nd 3rd 4th

layered approach to troubleshooting

layered models

     OSI 2nd 3rd

layers of DoD model

LCP

     configuration negotiation phase 2nd

LCP (link control protocol)

     troubleshooting 2nd 3rd 4th 5th 6th

LCP negotiation

     magic numbers

LCP phase of PPP 2nd 3rd 4th

LDN (local directory number)

LDNs (Local Directory Numbers)

LE (Local Exchange)

LEC switch problems

    ISDN performance issues

         troubleshooting 2nd

LEC switches

     troubleshooting ISDN end-to-end communications

legacy DDR

     dialer profile configuration

limitations

     of analog dialup services 2nd

     of analog modem connection speeds

     of cable modems services

     of Cisco Easy VPN client 2nd

     of Cisco PIX VPN client

     of Cisco Unity client 2nd 3rd 4th

     of ISDN services

limitations of wireless broadband services 2nd

line code errors 2nd

line coding

     B8ZS 2nd

     HDB3

     in wireless LANs 2nd

line problems

    Frame Relay

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

    ISDN performance issues

         troubleshooting 2nd 3rd 4th 5th

line provision

     verifying

line-coding techniques

     in hybrid networks 2nd

linecode violations

     of T1 circuits

link compression

Link Dead phase (PPP)

link establishment (PPP)

    LCP

         troubleshooting 2nd 3rd 4th 5th 6th

Link Establishment phase (PPP) 2nd

link speed

Link Termination phase (PPP)

link-state protocols

    OSPF

         demand circuits

link-state routing protocols

     size estimate 2nd

listen option (Netcat utility) 2nd

LMDS 2nd

LMDS (Local Multipoint Distribution Service)

LMI

     ANSI T1.617 Annex D 2nd 3rd 4th

     debugging 2nd

LMIs

     Annex D

     Cisco-Consortium 2nd

     code values 2nd

     Consortium LMI 2nd

         Status Enquiry message format 2nd

         Status message format

     counter parameters 2nd 3rd

     ITU-T Q.933 Annex A

     timers 2nd

load balancing

     configuring on VPN 3000 Concentrators 2nd

load interval

local loop

     ISDN

Local Multipoint Distribution Service

log files

     timestamping 2nd

logging

     to console

logging console command

logical frame processing

     LAPF

logical link establishment (LAPD) 2nd

long cable lengths

loopback command

     troubleshooting T1 circuits

loopback testing

     Frame Relay

loopbacks

     magic numbers

lost frames

LT (Local Termination)

LTI (linear time-invariant ) systems