List of Tables

Chapter 1: Introduction to Troubleshooting

Table 1.1: Protocols Used on OSI Layers

Chapter 2: Protocols and Their Characteristics

Table 2.1: Differences between Connection-Oriented and Connectionless Behavior

Table 2.2: Examples of Connection-Oriented and Connectionless Protocols

Table 2.3: The Seven Layers of the OSI Model

Table 2.4: Protocols for OSI Layers

Table 2.5: Fields of PPP Frame

Table 2.6: Phases of the PPP Link

Table 2.7: Configuration of Primary and Secondary Nodes

Table 2.8: Fields of the SDLC Frame

Table 2.9: Differences Between SDLC and HDLC

Table 2.10: The 32-bit IP Address

Table 2.11: Class Requirement and Available Options

Table 2.12: Leading Bits and Address Ranges of Classes

Table 2.13: IP Addresses in Binary Format

Table 2.14: Characteristics of Classes A, B, C, D, and E

Table 2.15: Sample Routing Table

Table 2.16: IGRP Message Format Fields

Table 2.17: Opcode Types

Table 2.18: Protocol-specific TLV Types

Chapter 3: Diagnostic Mechanisms

Table 3.1: The Show Commands with Respect to the Problem Area

Table 3.2: Test Characters and Their Implications

Table 3.3: Test Characters and Their Implications

Table 3.4: Ping Command Options and Their Descriptions

Table 3.5: Commands for Logging Messages

Table 3.6: Level Name, Value, and Description of Debug Log Messages

Chapter 4: Troubleshooting Tools

Table 4.1: The Show Commands and Their Services

Table 4.2: The Debug Command and Its Services

Chapter 5: Troubleshooting TCP/IP

Table 5.1: ping Command Characters and Descriptions

Table 5.2: Cisco-supported Show Commands

Table 5.3: TCP/IP Problems and Symptoms

Table 5.4: TCP/IP Problems and Action Plans

Chapter 6: Troubleshooting RIP Environments

Table 6.1: Characteristics of RIPv1 and RIPv2

Table 6.2: Show Commands and Explanations

Table 6.3: Debug Commands and Explanations

Table 6.4: Commands to Resolve Compatibility Issues Between RIPv1 and RIPv2

Table 6.5: Routing Details for RIP

Table 6.6: Routing Update Information for Router3

Table 6.7: Routing Update Information for Router4

Table 6.8: Split Horizon with Poisoned Reverse Update Packet for Router3

Table 6.9: Router4 Update Packet Status

Chapter 7: Troubleshooting IGRP Routing Environments

Table 7.1: Features of the IGRP Routing Protocol

Table 7.2: IGRP Timers

Table 7.3: Show Commands and Description

Table 7.4: Debug Commands and Descriptions

Chapter 8: Troubleshooting EIGRP Routing Environments

Table 8.1: Features of EIGRP

Table 8.2: Show Commands and Explanations

Table 8.3: debug Commands and Explanations

Table 8.4: Configurations of EIGRP Routers

Table 8.5: Configuration of Routers

Table 8.6: Causes, Commands, and Solutions for the SIA Mode

Chapter 9: Troubleshooting OSPF Routing Environments

Table 9.1: Show Commands and Descriptions

Table 9.2: Debug Commands and Descriptions

Table 9.3: Causes of Neighbor Adjacency Problems and Diagnostic Commands

Table 9.4: Configuration of Routers in Stub Area

Chapter 10: Troubleshooting IS-IS Routing Environments

Table 10.1: Comparing IS-IS Routers

Table 10.2: Data Packets in the IS-IS Routing Protocol

Table 10.3: Show Commands and Descriptions

Table 10.4: debug Commands and Descriptions

Table 10.5: IP Addresses of IS-IS Routers

Chapter 11: Troubleshooting BGP for Routing Environments

Table 11.1: BGP show Commands and Descriptions

Table 11.2: debug Commands to Troubleshoot BGP Problems

Chapter 12: Troubleshooting Redistribution Routing Environments

Table 12.1: Router Configurations

Table 12.2: Router Configuration

Table 12.3: Router Configuration

Table 12.4: Router Configuration

Table 12.5: Router Configuration

Table 12.6: Router Configuration