Cisco SWITCH 2.0: Spanning Tree Implementation II

This course is intended for students who are looking for real-world switching knowledge, and those that are considering CCNP and CCDP certification. This course’s discussion of switching could also benefit early CCIE Routing and Switching candidates.


Expected Duration
197 minutes

STP is a very mature protocol, benefiting from years of development and production deployment. However, STP makes assumptions about the quality of the network, and the protocol can fail. Those failures are generally high-profile failures because of the extent to which they impact the network. STP is designed to never open a loop, even temporarily, during its operation. However, like any protocol, it is based on some assumptions that might not be valid in the network. To help STP converge faster and for the protocol behavior to match your network infrastructure, several features are available to filter the way that BPDUs are sent or received, and to alter the way the network should react in case of an unexpected network topology change. 802.1Q and PVST+ represent two extremes of STP operation. 802.1Q has only a single instance for all VLANs in the network. If your network is running 1000 VLANs, only one instance runs for all 1000 VLANs. With PVST+, one instance is used for each active VLAN in the network. If your network has 1000 VLANs, there will be 1000 independent instances of STP running. MST is a concept of mapping one or more VLANs to a single STP instance. The course explains how and where to configure mechanisms such as PortFast, UplinkFast, BackboneFast, BPDU guard, BPDU filter, root guard, loop guard, UDLD, and FlexLinks. This course also covers how to configure MST. This course offers the official training for the Implementing Cisco IP Switched Networks 2.0 certification exam which is a component exam for the CCNP and CCDP certifications. Passing this exam will also refresh CCNA certification, which expires after three years.


Implementing STP Stability Mechanisms

  • start the course
  • list and briefly explain the Cisco STP Toolkit
  • describe UplinkFast
  • describe BackboneFast
  • describe how to configure PortFast
  • describe how to configure BPDU guard
  • describe how to configure BPDU filter
  • describe how to configure root guard
  • describe the recovery process from root-inconsistent state
  • describe the problem with unidirectional links
  • describe loop guard
  • configure loop guard
  • describe how UDLD detects a unidirectional link and what actions it takes
  • configure UDLD
  • compare UDLD loop guard
  • describe the recommended practices for UDLD implementation
  • describe how to configure FlexLinks

Implementing MST

  • describe when and why to use MST
  • identify the role of MST regions
  • describe MST instances
  • describe MST region interaction
  • recognize the process of MSTP VLAN mapping
  • provide an example of MSTP configuration
  • configure MSTP
  • verify MSTP
  • configure MST path cost
  • configure MST port priority
  • describe the recommended practices when migrating a network to MST
  • describe the MST recommended practices

Practice: Implementing STP Stability

  • configure stability mechanisms for STP





Multi-license discounts available for Annual and Monthly subscriptions.