Foreword. Introduction. I. INTERCONNECTING LANS. 1. Internetworking Concepts Review. Defining Network Components. Mapping Business Needs to a Hierarchical Model. OSI Reference Model Overview. Communicating Between OSI Reference Model Layers. Physical Layer Functions. Data Link Layer Functions. Network Layer Functions. Transport Layer Functions. OSI Lower Layer Review. Mapping Devices to Layers and the Hierarchical Model. Summary. Review Questions. 2. Configuring Catalyst Switch Operations. Enhancing Ethernet Networks Using Layer 2 Switches. Layer 2 Networking Components. Basic Layer 2 Switching (Bridging) Technologies. Section 1 Quiz. Configuring a Catalyst Switch. Executing Adds, Moves, and Changes for Port Security. Section 2 Quiz. Catalyst Switch Command Summary. Summary. Review Questions. 3. Extending Switched Networks with Virtual LANs. VLAN Concepts. Trunk Links. VLAN Trunking Protocol. Per-VLAN Spanning Tree. Section 1 Quiz. VLAN Configuration. VLAN Command Summary. Section 2 Quiz. Summary. Case Study. Review Questions. II. CONTROLLING TRAFFIC BETWEEN LANS. 4. Determining IP Routes. Routing Overview. Enabling Static Routes. InterVLAN Routing. Section 1 Quiz. Learning Routes Dynamically Using Routing Protocols. Section 2 Quiz. Routing Protocol Command Summary. Summary. Review Questions. 5. Configuring IP Routing Protocols. Configuring Dynamic Routing Protocols. Enabling RIP. Section 1 Quiz. Enabling IGRP. Section 2 Quiz. Enabling EIGRP. Section 3 Quiz. Enabling OSPF. OSPF Features. Section 4 Quiz. Variable-Length Subnet Masks. Section 5 Quiz. Routing Command Summary. Summary. Case Study. Review Questions. 6. Basic IP Traffic Management and Translation with Access Lists. Understanding Access Lists. Access List Functions and Operations. TCP/IP Access Lists. Section 1 Quiz. Standard IP Access List Configuration. Controlling vty Access with Access Class Entries. Extended IP Access Lists. Named IP Access Lists. Guidelines for Standard, Extended, and Named Access List Implementation. Verifying and Monitoring Access Lists. Section 2 Quiz. Scaling the Network with NAT and PAT. Section 3 Quiz. Access List Command Summary. Summary. Case Study. Review Questions. III. INTERCONNECTING WANS. 7. Establishing Serial Point-to-Point Connections. WAN Overview. WAN Layer 2 Encapsulation. Summary. Case Study. Final Review Questions. 8. Establishing a Frame Relay PVC Connection. Frame Relay Overview. Section 1 Quiz. Configuring Frame Relay. Configuring Frame Relay Subinterfaces. Section 2 Quiz. Frame Relay Command Summary. Case Study. Summary. Review Questions. 9. Completing an ISDN BRI Call. ISDN BRI Overview. ISDN Components. Dial-on-Demand Routing Overview. Configuring Standard DDR. Section 2 Quiz. ISDN BRI Command Summary. Case Study. Summary. Review Questions. IV. APPENDIXES. Appendix A: Password Recovery. Appendix B: Recovering a Lost Switch Image Using Xmodem. Appendix C: Configuring the Catalyst 1900 Series Switch. Appendix D: Answers to Section Quizzes and Final Review Questions. Appendix E: Case Study Review. Glossary. Index.