Switching Infrastructure Connectivity

This course is included in our On-demand training solution.


Merely interconnecting all devices via full duplex Ethernet does not allow for fault tolerance. Providing alternative pathways is part of the core deployment model of a Cisco architecture, but it must be managed with Spanning Tree protocol to avoid the catastrophic looping issues that go hand-in-hand with Ethernet switching redundancy. Although Spanning Tree protocol is often necessary, it can prevent the usage of parallel links. EtherChannel allows the usage of parallel links in an environment where STP is eliminating redundant pathways. Knowing how to work with these technologies allows a network engineer to build a redundant Ethernet network that can be scaled with port aggregation technologies. This course covers configuration aspects of switch connectivity such as speed and topological selection induced by STP and EtherChannel. This course is one of a series in the Skillsoft learning path that covers the objectives for the Cisco exam Building Cisco Service Provider Next-Generation Networks Part 1 exam (640-875 SPNGN1). This exam counts toward the CCNA Service Provider certification.

Target Audience

This course is targeted at networking engineers who must interface with Cisco IOS, IOS XR and IOS XE devices. Additionally, those who have a need to understand technologies used in the service provider realm will benefit.



Expected Duration

120 min.

Course Objectives

Course Introduction

Duplex Overview

  • compare full duplex and half duplex
  • Different Media Rates

  • describe Ethernet operation at different media rates
  • Setting Duplex and Speed Options

  • configure duplex and speed options for a switch port
  • Cisco ME 3400 Series Port Types

  • describe Cisco ME 3400 series port types
  • Network Redundancy and Loops

  • describe the challenge with network redundancy
  • Issues of Redundant Switched Topology (Part 1)

  • describe broadcast storms
  • Issues of Redundant Switched Topology (Part 2)

  • describe multiple frame copies
  • Issues of Redundant Switched Topology (Part 3)

  • describe MAC database instability
  • Loop Resolution with STP

  • describe the need for STP
  • Spanning Tree Standards

  • identify Spanning Tree standards
  • Comparison of Spanning Tree Protocols

  • compare Spanning Tree protocols
  • Spanning Tree Operation

  • describe Spanning Tree operation
  • Spanning Tree Cost and Priority

  • describe the role of cost and priority in STP
  • Spanning Tree Port States

  • describe Spanning Tree port states
  • RSTP Improvements

  • describe RSTP improvements of STP
  • Default Spanning Tree Configuration

  • describe STP in its default state
  • Configuring Rapid PVST+ on Cisco ME Switches

  • configure Rapid PVST+ on Cisco ME switches
  • EtherChannel Overview

  • describe EtherChannel
  • Configuring EtherChannel (Part 1)

  • configure EtherChannel
  • EtherChannel Overview (Part 2)

  • configure EtherChannel
  • EtherChannel Overview (Part 3)

  • configure EtherChannel
  • Flex Links

  • describe Flex Links
  • Exercise: Configuring Connectivity for Switch