Aruba Advanced OS-CX Switching & Troubleshooting Solutions, Rev. 20.41

This course is structured to help the candidate gain this highest level of expertise, with Aruba wired switching solutions, including the ability to implement and optimize enterprise level Aruba...

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$3,200 USD GSA  $2,901.76
Course Code Aruba-AOCSTS-20-41
Duration 5 days
Available Formats Classroom, Virtual
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This course is structured to help the candidate gain this highest level of expertise, with Aruba wired switching solutions, including the ability to implement and optimize enterprise level Aruba Switching campus LAN solutions. The course focuses on interpreting complex network architectures and customer requirements to implement, monitor, troubleshoot, and optimize multi-vendor network solutions. This course is approximately 30% lecture and 70% hands-on lab scenario-based exercises. The candidate is encouraged to use critical thinking skills to resolve complex issues in the environments that are beyond the expertise of the professional level integrator. During the performance of his/her primary tasks, the candidate is encouraged to also demonstrate the highest level of strategic thinking and problem solving. This will include defining operational plans for desired outcomes for the purpose of satisfying immediate requirements as well as anticipated future growth opportunities.

Skills Gained

After you successfully complete this course, expect to be able to:

  • Describe diagnostic principles
  • Use a proven problem-solving methodology
  • Describe REST API, NAE, IP SLA, SNMPv3 and NetEdit troubleshooting tools
  • Configure, validate and troubleshoot Network Virtualization features
  • Configure and validate PBR
  • Deploy and troubleshoot multi-area OSPF
  • Deploy and troubleshoot BGP
  • Deploy and troubleshoot Route Redistribution
  • Deploy and troubleshoot VRF and Route Leaking
  • Deploy and troubleshoot Multicast
  • Deploy and troubleshoot QoS
  • Deploy and troubleshoot Dynamic Segmentation
  • Deploy and troubleshoot Network Security
  • Deploy and troubleshoot IPv6

Who Can Benefit

The ideal candidate for this course is very familiar with Aruba wired switching solutions, including the ability to implement and optimize enterprise level Aruba Switching campus LAN solutions. Typical candidates in the ASTS course are preparing for the ACSX written and/or ACSX practical exams.


The suggested prerequisites for this course are to attend the Implementing ArubaOS-CX Solutions course or pass the Aruba Certified Switching Professional (ACSP) certification exam.

Course Details

Plan The Wired Network Solutions

  • Gather customer requirements and network design
  • Information gathering steps and questionnaire
  • Create and use a Proof-of-Concept (POC) plan
  • Creating and using a golden configuration


Diagnostic Principles

  • Troubleshooting Principles
  • Troubleshooting Zones
  • Troubleshooting Components

Problem-solving methodology

  • Identification and Analysis
  • Hypothesis and Validation
  • Implement and Verify

Log files and debugging

  • Assess and set desired debugging states
  • Remote logging and log rotation
  • Event and Account logging
  • Password reset

Diagnostic Commands

  • Resource utilization
  • Capacities and Environment
  • Diagnostic tools and diag on-demand
  • Support Files

Traffic Analysis

  • Mirroring concepts and configuration
  • Mirroring validation
  • Wireshark setup and usage
  • Wireshark display filters

Monitoring and Automation Tools


  • Network Automation and REST API
  • REST methods
  • Using the REST interface

Sending REST API Requests

  • Swagger resource reference and interface
  • cURL CLI tool and library
  • Postman

Network Analytic Engine

  • Overview
  • Scripts and agents
  • Script types and sources
  • NAE maximums
  • Script components
  • Agent functions
  • Troubleshooting

Other Monitoring

  • IP SLA use and configuration
  • SNMPv3 use and configuration
  • NetEdit topology and logs

VSX, VSF, and Layer 2 Technologies


  • Overview
  • Stack requirements
  • Member roles and links
  • Link failure and split detection
  • Split stack link and member failures

VSF Troubleshooting

  • Status and members
  • Links and topology
  • Removing a VSF member


  • Overview
  • Components
  • Aggregation: Single routing model
  • Aggegation: Multiplle VRF routing
  • Virtual and System MAC guidance

VSX Best Practices

  • Nodes, bandwidth, and ISL
  • Roles and synchronization
  • Configuration sync
  • LAG and MSTP configuration
  • SVI configuration

VSX Troubleshooting

  • Status and LAG interfaces
  • Configuration and VSX sync
  • Debugging
  • Configuration consistency
  • Link/interface status
  • MAC/peer consistency
  • LACP interfaces
  • Configuration parser

VSX Split Brain

  • Analyze down conditions and results
  • Analyze failure scenarios

Layer 3 Routing and OSPF

Static Routing

  • Overview
  • Default route
  • Floating static routes
  • Static Routes with BFD
  • Routes with Tags

Policy Based Routing

  • Overview
  • Configuration
  • Validation
  • VRF

OSPF Single Area

  • Review
  • Adjacencies
  • Route table vs. diagram
  • Neighbor table vs. diagram
  • LSDB vs diagram
  • LSDB vs network types

OSPF Multi-area

  • OSPF review
  • LSA types and usage
  • ABRs
  • Route aggregation and filtering
  • Interface costs
  • Passive interfaces
  • Authentication
  • BFD
  • Best practice and troubleshooting review


BGP Concepts and Peers

  • Use case and features
  • Configure BGP peers
  • Sessions and states
  • eBGP multihop
  • iBGP full-mesh
  • Validate BGP peers

BGP Advertisement

  • Three key points about BGP advertisements
  • iBGP and next-hop-self
  • BGP reachability requirement
  • The network command
  • Aggregate-address command

BGP Metrics and Tuning

  • Path selection criteria
  • Prefix lists and route maps
  • Weight
  • Local Preference
  • AS path length
  • MED

Route Control

  • Reasons to control eBGP routes
  • Route control implementation
  • Route control validation
  • Inbound route control
  • Peer groups
  • Route reflectors

Route Redistribution

Intro to Redistribution

  • Overview
  • Redistribute static to OSPF
  • Static to OSPF configuration and validation
  • OSPF Type 1 vs Type 2 routes
  • Using and tuning the default metric
  • Compare tuning techniques
  • Prefix list tuning and validation

Redistribute OSPF to BGP

  • Scenario
  • Configuration
  • Network statements and route maps

Advanced Route Redistribution

  • Scenario
  • AS-path list
  • Improve BGP convergence times
  • Route tags

VRF and Route Leaking

VRF Overview and Configuration

  • Overview
  • Configuration
  • Verification

VRF Route Leaking

  • Methods
  • Restrictions and limitations
  • Static route leaking configuration and validation
  • Dynamic route leaking configuration and validation



  • Introduction
  • IP address assignments

Network Access and L2 Multicast

  • Switching multicast frames
  • MAC address mapping
  • IGMP – v1, v2, v3
  • IGMPv3 messages – membership report, querier election,
  • IGMPv3 Snooping
  • IGMPv3 Configuration and verification
  • VSX and IGMPv3

IP Multicast at Layer 3

  • Overview
  • Tree types Shared/RP, source/SPF trees
  • Group states
  • RPF


  • Versions
  • Messages


  • Designated Routers
  • Rendezvous Point
  • Build-up process
  • Wireshark analysis

RP Configuration

  • Static RP
  • Dynamic RP
  • BSR mechanism
  • Wireshark analysis
  • VSX and PIM

Multicast Deployment

  • Overview
  • PIM Configuration
  • Multicast Troubleshooting


Quality of Service

  • Overview
  • Traffic characterization
  • Differentiated Services model
  • AOS-CX QoS processing

Ingress Stage

  • Rate Limiting
  • Configuration
  • Verification

Prioritization Stage

  • Classifier and Class of service
  • Marking and Trust
  • Configuration and Verification
  • Queuing Stage
  • Configuration and verification
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