TCP, 29,51
TCP/IP Problems and Symptoms, 141
TCP/IP Router Diagnostic Tools, 121
Address, 123
ARP, 134
ARPA, 134
Datagram size, 124
DNS, 123
Extended commands, 124
Host Name, 123
show ip arp, 134
show ip traffic, 135
ICMP, 122,127
IP address, 122,130,134
IP routes, 130
IP routing protocols, 134
IP routing table, 130
OSPF, 131,132
ping Command in the Privilege Exec Mode, 124
ping Command in the User Exec Mode, 123
Protocol, 123,124
protocols, 123
Repeat count, 124
RFC, 134
routing protocol, 130
show ip access-list, 133
show ip ospf database, 131
show ip ospf interface, 132
show ip ospf neighbor, 132
show ip protocols, 134
show ip route, 130
Target IP address, 124
TCP/IP, 121,122,123,124,127,128
Timeout in seconds, 124
TTL, 127
The Access Layer, 5
The Core Laye, 6
The debug Command, 82,111
The Distribution Layer, 6
The Layered Architecture of the OSI Mode, 8
The Layered Architecture of the TCP/IP Model, 13
The Layered Troubleshooting Approach, 7
The ping Commands, 115
The ping Command, 78
The show buffers Command, 73
The show cdp neighbors Command, 77
The show Command, 68,109
The show controllers Command, 72
The show flash Command, 72
The show interfaces Command, 70
The show memory Command, 74
The show process cpu Command, 75
The Show running-config Command, 70
The show stack Command, 75
The show startup-config Command, 70
The show version Command, 69
The trace Command, 86,117
Timer Problem, 183
Timer Problem in IGRP, 221
TP0, TP1, TP2, TP3, and TP4, 29
trace, 127
Traffic Director RMON, 63
Traffic Generators, 108
Transport Layer, 10,14
Triggered Updates, 194
Troubleshooting Problems on Data-Link Layer, 17
Troubleshooting Problems on the Application Layer, 19
Troubleshooting Problems on the Network Layer, 17
Troubleshooting Problems on the Physical Layer, 15
Troubleshooting Problems on the Transport Layer, 18
Troubleshooting Techniques, 138
TTL, 86,87
2-Way State, 283
ABR, 268
ABRs, 290
Adjacencies, 268
ASBR, 268
Autonomous Systems, 268
Backup Designated Router, 268
BDR, 279
BR, 268
broadcast, 268
broadcast network, 286
Designated Router, 268
DR, 279
EIGRP, 294
EXSTART, 283
FE0/0, 279
Flooding, 267
Hello packets, 282
hello timers, 286
IGP, 291
INIT, 282
IP address, 287
IP subnet, 287
IR, 268
Link State Advertisement, 267
LSA, 286
LSAs, 286
MTU, 283
Multi-access/broadcast networks, 268
NBMA, 287
Nonbroadcast multi-access networks, 268
Not So Stubby Area, 268
OSPF, 267
OSPF Routers, 268
OSPF routing, 279
OSPF routing protocols, 291
packet level, 275
protocol, 267
RIP, 291
routing loops, 291
routing protocols, 290
routing table, 267
Single area, 268
Stub area, 268
subnet, 287
subnets, 297
terminology, 267
Totally Stubby Area, 268
Type 2 service of IEEE 802.2, 29
Types of Connectionless and Connection-oriented Protocols, 28