Document Outline
- Using Your Sybex Electronic Book
- CCNP Support Study Guide
- Front Matter
- Acknowledgments
- Introduction
- Cisco-A Brief History
- Cisco's Network Support Certifications
- Cisco's Network Design Certifications
- What Does This Book Cover?
- Where Do You Take the Exam?
- Tips for Taking Your CCNP Exam
- How to Use This Book
- What's on the CD?
- How to Contact the Authors
- Assessment Test
- Answers to Assessment Test Questions
- Chapter 1: Troubleshooting Methodology
- The Complexity of Internetworks
- The Problem-Solving Model
- Step 1: Define the Problem
- Step 2: Gather Facts
- Step 3: Consider Possibilities
- Steps 4 and 5: Create and Implement the Action Plan
- Step 6: Observe Results
- Step 7: Iterate as Needed
- When the Problem Is Resolved
- Step 8: Document the Changes
- The Problem-Solving Checklist
- Summary
- Review Questions
- Answers to Review Questions
- Chapter 2: Protocol Attributes
- The OSI Reference Model
- Global Protocol Classifications
- Connection-Oriented Protocols
- Connectionless Protocols
- OSI Layer 3: Routed and Routing Protocols
- Internet Protocol (IP)
- Internet Control Message Protocol (ICMP)
- Transport Control Protocol (TCP)
- Routing Information Protocol (RIP)
- Interior Gateway Routing Protocol (IGRP)
- Enhanced IGRP (EIGRP)
- Open Shortest Path First (OSPF)
- Initializing OSPF
- BGP (Border Gateway Protocol)
- Novell NetWare Protocols
- AppleTalk Protocols
- OSI Layer 2: Data-Link Layer Protocols and Applications
- Ethernet/IEEE 802.3
- Token Ring/IEEE 802.5
- Fiber Distributed Data Interface (FDDI)
- Point-to-Point Protocol (PPP)
- Synchronous Data Link Control (SDLC)
- X.25
- Frame Relay
- Integrated Services Digital Network (ISDN)
- Summary
- Review Questions
- Answers to Review Questions
- Chapter 3: Generic Troubleshooting Tools
- Physical Media Test Equipment
- Multimeters and Cable Testers
- Time Domain Reflectors (TDRs) and Optical TDRs (OTDRs)
- Digital Interface Testing Tools
- Software Test Equipment
- Network Monitors
- Network Analyzers
- Network Management Systems (NMSs)
- Cisco Network Management Software
- CiscoWorks 2000
- NetSys
- CiscoSecure
- Summary
- Commands Used in This Chapter
- Review Questions
- Answers to Review Questions
- Chapter 4: Cisco's Diagnostic Commands
- Understanding the Output from Diagnostic Commands
- The Routing Process
- The Switching Process
- Switching Methods
- Packet Flow-High-End Routers
- The Route Processor
- Buffers and Queues in the Cisco 7000 Series
- Buffers and Queues in Low-End Routers
- Troubleshooting Commands
- show Commands
- debug Commands
- Executing a Router Core Dump
- ping Commands
- traceroute Command
- Summary
- Commands Used in This Chapter
- Review Questions
- Answers to Review Questions
- Chapter 5: Applying Cisco's Diagnostic Tools
- Identifying and Resolving Generic Router Problems
- Troubleshooting Ethernet Problems
- Troubleshooting Token Ring Problems
- Summary
- Commands Used in This Chapter
- Review Questions
- Answers to Review Questions
- Chapter 6: Troubleshooting TCP/IP Connectivity
- TCP/IP Router Diagnostic Tools
- ping and traceroute Commands
- show Commands
- debug Commands
- Problem Isolation in TCP/IP Networks
- Problem Isolation for Windows 95/98/NT
- LAN Connectivity Problems
- Obtaining an IP Address
- ARP
- WAN Access Problems
- Default Gateways
- Static and Dynamic Routing
- IP Access Lists
- Standard Access Lists
- Extended Access Lists
- ICMP Messages
- Troubleshooting RIP
- RIP1 and RIP2
- show Commands
- debug Commands
- Typical Problems
- Troubleshooting IGRP
- show Commands
- debug Commands
- Typical Problems
- Troubleshooting EIGRP
- Neighbor Formation
- show Commands
- debug Commands
- Typical Problems
- Troubleshooting OSPF
- Neighbor and Adjacency Formation
- OSPF Area Types
- show Commands
- debug Commands
- Typical Problems
- Redistribution of Routing Protocols
- Dealing with Routing Metrics
- Distribute Lists
- Route Maps
- TCP/IP Symptoms and Problems: Summary Sheet
- TCP/IP Symptoms and Action Plans: Summary Sheet
- Summary
- Commands Used in This Chapter
- Review Questions
- Answers to Review Questions
- Chapter 7:Troubleshooting Serial Line and Frame Relay Connectivity
- Troubleshooting Serial Lines
- HDLC Encapsulation
- show interface serial Command
- show controllers Command
- show buffers Command
- debug serial interface Command
- debug serial packet Command
- CSU/DSU Loopback Tests
- Serial Line Summary
- Troubleshooting X.25
- show interface serial Commands
- debug Commands
- X.25 Link Summary
- Troubleshooting Frame Relay
- Frame Relay show Commands
- Frame Relay debug Commands
- Frame Relay Summary
- Summary
- Commands Used in This Chapter
- Review Questions
- Answers to Review Questions
- Chapter 8: Troubleshooting ISDN
- ISDN Fundamentals
- Common ISDN Problems
- Misconfigured Routers
- Physical Layer Connections
- Misconfigured Phone Switches
- ISDN Troubleshooting Commands
- ping
- clear interface bri n
- show interface bri n
- show interface bri n 1 2
- show controller bri
- show isdn status
- show dialer
- show ppp multilink
- Debugging ISDN
- debug bri
- debug isdn q921
- debug ppp negotiation
- debug isdn q931
- debug ppp packet
- debug dialer
- Summary
- Commands Used in This Chapter
- Review Questions
- Answers to Review Questions
- Chapter 9: Troubleshooting Novell Connectivity
- IPX Networking Fundamentals
- Connecting to a Novell Network
- Encapsulation
- Get Nearest Server
- Service Advertising
- Novell Router Diagnostic Tools
- ping Commands
- show Commands
- debug Commands
- Common Novell Troubleshooting Issues
- Ethernet Encapsulation Mismatches and Network Settings
- Problems Attaching to Remote Servers
- SAP Congestion Management in IPX RIP
- Debugging Scalable NetWare Protocols
- IPX EIGRP
- NLSP and IPXWAN
- Summary
- Commands Used in This Chapter
- Laboratory Exercise
- Review Questions
- Answers to Review Questions
- Chapter 10: Troubleshooting AppleTalk Connectivity
- The AppleTalk Protocol
- AppleTalk Addressing
- AppleTalk Routing
- AppleTalk ping Command
- AppleTalk show Commands
- AppleTalk test Commands
- AppleTalk debug Commands
- Common AppleTalk Troubleshooting Issues
- ZIP Storms
- AARP Broadcast Frames
- Phase One/Phase Two Compatibility Problems
- Duplicate or Crossed Network Numbers
- Overloaded Network
- No Resources Listed in Chooser
- Summary
- Commands Used in This Chapter
- Review Questions
- Answers to Review Questions
- Chapter 11: Troubleshooting Switched Ethernet
- Switches, Bridges, and Hubs
- Catalyst Troubleshooting Tools
- Catalyst Command Line Interface
- CiscoWorks for Switched Internetworks
- RMON
- Indicator Lights
- Controlling Recurring Paths with Spanning Tree
- Troubleshooting Spanning Tree Problems
- The Catalyst 5000 Internal Structure
- Virtual LANs
- Inter-Switch Link (ISL)
- 802.1q Trunking
- VLAN Trunking Protocol (VTP)
- Cabling Issues
- Cable Problems
- Cross-Over Cables
- Troubleshooting Switched Connections
- The Switched Port Analyzer
- The Route Switch Module and Catalyst Routing
- VLANs across Routers and Switches
- VLAN Design Issues and Troubleshooting
- Summary
- Commands Used in This Chapter
- Laboratory Exercise
- Review Questions
- Answers to Review Questions
- Chapter 12: Cisco Support Functions
- Cisco Connection Family
- Cisco Connection Online (CCO)
- Online Information
- Features and Electronic Services
- Troubleshooting Engine
- Cisco Connection Documentation
- Cisco's Technical Assistance Center (TAC)
- Other Cisco Documentation
- Summary
- Commands Used in This Chapter
- Review Questions
- Answers to Review Questions
- Appendix A: Practice Exam
- Practice Exam Questions
- Answers to Practice Exam
- Appendix B:Commands in This Study Guide
- Glossary
- Exit