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

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

Troubleshooting

• 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

• REST API
• 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

• VSF
• 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
• VSX
• 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

• 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

Multicast

• Multicast
• 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
• PIM
• Versions
• Messages
• PIM-SIM
• 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

QoS

• 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
• Scheduler Stage
• Strict Priority
• DWRR and WFQ
• Configuration and verification
• Remark QoS
• Configuration
• Verification

Dynamic Segmentation

• Overview
• Objective and benefits
• Port-based vs user-based tunneling
• UBT components
• Understanding UBT
• Tunnel establishment
• Role assignment and redirection
• Infrastructure requirements
• Broadcast and multicast traffic
• Configuration and Wireshark analysis
• Verification commands
• Deployment Using NetEdit
• Configure dynamic segmentation using NetEdit
• Verify dynamic segmentation using NetEdit

Network Security

• Access Control Lists
• Overview
• Applying ACLs
• Object Groups
• ACL verification
• Counting and logging
• ACL resource utilization
• Classifier Policies
• Overview
• Configuration
• Application
• Verification
• Control Plane Policing
• Overview
• Configuration
• Verification
• Local User and Group Management
• Local AAA
• Built-in user groups
• User-defined user groups
• TACACS+ Management
• Remote AAA using TACACS+
• Communication with TACACS+ server
• Configure and verify AAA using TACACS+
• DHCP Snooping and ARP Inspection
• DHCP snooping configuration and verification
• Dynamic ARP operation, configuration, and verification

IPv6

• IPv6
• Features
• Headers
• Extension headers
• Address representation
• Address Types
• Unicast
• Multicast
• Anycast
• ICMPv6
• Overview
• Neighbor discovery
• Manual IPv6 Addressing
• Configuration
• Verification
• DAD
• Dynamic IPv6 Addressing
• Router Advertisements
• SLAAC
• DHCPv6
• IPv6 Routing
• Static
• OSPFv3
• IPv6 Access Control Lists
• Configuration
• Verification