思科官方出品，新版NP实验不可多得的好东西。
CCNP SWITCH 6.0
Chapter 1 Lab 1-1, Cl

Chapter 1 Lab 1-2, Clearing a Switch Connected to a Larger Network
Chapter 2 Lab 2-1, Static VLANS, VLAN Trunking, and VTP Domains and Modes

Chapter 2 Lab 2-2, Configuring EtherChannel
Chapter 3 Lab 3-1, Spanning Tree Protocol (STP) Default Behavior

Chapter 3 Lab 3-2, Modifying Default Spanning Tree Behavior
Chapter 3 Lab 3-3, Per-VLAN Spanning Tree Behavior

Chapter 3 Lab 3-4, Multiple Spanning Tree
Chapter 4 Lab 4-1, Inter-VLAN Routing with an External Router

Chapter 4 Lab 4-2, Inter-VLAN Routing with an Internal Route Processor and Monitoring CEF Functions
Chapter 4 Lab 4-3, VLANs, VTP, and Inter-VLAN Routing Case Study

Chapter 5 Lab 5-1, Hot Standby Router Protocol
Chapter 5 Lab 5-2, IP Service Level Agreements in a Campus Environment

Chapter 6 Lab 6-1, Securing Layer 2 Switches
Chapter 6 Lab 6-2, Securing Spanning Tree Protocol

Chapter 6 Lab 6-3, Securing VLANs with Private VLANs, RACLs, and VACLs
Chapter 7 Lab 7-1, Configuring Switches for IP Telephony Support

Chapter 7 Lab 7-2, Configuring a WLAN Controller
Chapter 7 Lab 7-3, Voice and Security in a Switched Network - Case Study