Aruba Advanced OS-CX Switching & Troubleshooting Solutions

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
  • 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