The ACI Elite Series

Session 1 – ACI Overview

Lecture

• What is ACI
• ACIs benefits
• Overview of Switch and APIC models APIC Architecture Fabric
• Bring up process
• ACI Object Model
• ACI MGMT
  • RBAC
  • Syslog
  • SNMP
  • Upgrade Process
  • BGP Policy

Labs

• Instructor demo GUI Overview
• Instructor demo Intro to CLI
• Creating Users and assign Permissions Software
• Upgrades
• Syslog, SNMP and config rollbacks

Session 2 – Fabric Forwarding

Lecture

• VXLAN refresher
• Understanding Bridge Domains
  • Bridge Domain as a layer 2 boundary
  • Difference between VLANs and Bridge Domains
  • Bridge Domain configuration knobs
    • Limit Learning to IP subnet
  • Encapsulation and multicast group
• COOP
  • Oracles and Citizens
  • Endpoint tables
  • Lookup process
• Layer2 and Layer3 forwarding
  • ARP handling packet walk
  • L2 packet walk
  • L3 packet walk
  • BUM traffic packet walk
  • VXLAN Encapsulations
    • Intro to Fd_VLANs and BD_VLANs
    • VRF encapsulation
  • EP move and bounce entries
  • Rogue endpoint detection
  • Silent hosts
• Endpoint table vs Mac and Routing Table

Labs:

• Intro to endpoint reachability troubleshooting
• Understanding show endpoint command
• Validate COOP entries (GUI and CLI)
• Using iPing, ELAM and Ftriage (App not CLI)

Session 3 – Fabric Configuration Part 1

Lecture:

• Overview of interface configurations
  • Physical and VMM domains overview
    • Deployment immediacy (VMM)
    • Resolution immediacy (VMM)
  • VLAN Pools
    • Static and Dynamic Pools
    • Base encap value
  • AEPs
    • Used as a way to tie VLANs to an Interface
    • Used to define EPG membership
  • Policy Groups
  • Interface Profiles
• Overview of switch configurations
  • VPC in ACI
  • Switch Profiles
• VLANs in the ACI world
  • P I, HW, Access Encap, BD and FD
  • Physical Domain, AEP and VLAN Pool relationship to FD_VLAN.and VXLAN encap

Labs:

• Create a physical Domain to connect endpoints to the ACI Fabric
  • Create VLAN Pool and AEP
• Create a VMM domain to connect endpoints to the ACI fabric
  • Create VLAN Pool and AEP
  • Create VMM integration
  • Create VPCs explicit protection groups
  • Create Interface Profiles and Policy Groups
  • Create Switch Profiles
• Understanding the output
  • Show VLAN brief
  • Show VLAN extended
  • Show system internal eltmc info VLAN brief (vsh_lc shell)

Session 4 – Fabric Configuration Part 2

Lectures:

• Overview of interface configurations
• Physical and VMM domains overview
  • Deployment immediacy (VMM)
  • Resolution immediacy (VMM)
• VLAN Pools
  • Static and Dynamic Pools
  • Base encap value
• AEPs
  • Used as a way to tie VLANs to an Interface
  • Used to define EPG membership Policy Groups, Interface Profiles
• Overview of switch configurations
  • VPC in ACI
  • Switch Profiles
• VLANs in the ACI world
  • P I, HW, Access Encap, BD and FD
• Physical Domain, AEP and VLAN Pool relationship to FD_VLAN and VXLAN encap

Labs:

• Create a physical Domain to connect endpoints to the ACI Fabric
  • Create VLAN Pool and AEP
• Create a VMM domain to connect endpoints to the ACI fabric
  • Create VLAN Pool and AEP
  • Create VMM integration
  • Create VPCs explicit protection groups
  • Create Interface Profiles and Policy Groups
  • Create SwitchProfiles
• Understanding the output
  • Show VLAN brief
  • Show VLAN extended
  • Show system internal eltmc info VLAN brief (vsh_lc shell)

Session 5 – ACI Logical Constructs Part 1

Lecture:

• Tenants
• VRFs
• Bridge Domains
• Application Profiles
• EPGs and Endpoint Security Groups
  • VMM and Physical Domains
• Intro to Contracts

Labs:

• Create a tenant
• Create an Application Profile
• Create a set of EPGs and establish L2 and L3 connectivity between endpoints
  • Create required BDs, EPGs and Contracts

Session 6 – ACI Logical Constructs Part 2

Lecture:

• Tenants
• VRFs
• Bridge Domains
• Application Profiles
• EPGs and Endpoint Security Groups
  • VMM and Physical Domains
• Intro to Contracts

Labs:

• Create a tenant
• Create an Application Profile
• Create a set of EPGs and establish L2 and L3 connectivity between endpoints
  • Create required BDs, EPGs and Contracts

Session 7 – Contracts

Lecture:

• Contract Scope
• Subjects
• Filters
  • Directives (Log and Policy Compression)
• Verifying L2 and L3 permit and denies from the GUI Subject Labels
  • Apply both ways and reverse filter ports
• EPG Labels Deny
• Contracts
  • Taboo Contracts
  • Regular contracts with Deny Filter
• VRF Enforced and Unenforced
• Preferred Group
• VZ_ANY
• Consumed contract interfaces (Intro to leaking)

Labs:

• Enable EPG to EPG communication using Subject Labels and EPG Labels
• Enable EPG to EPG communication using Preferred Group and VZ_Any VRF options
• Block specific traffic using Taboo contracts and deny filters

Session 8 – External Connectivity Part 1

Lecture:

• Layer 2 Connectivity
  • Understanding L2Outs
  • Understanding VLANs on ACI
  • Understanding EPG extensions
  • Unicast Routing option on Bridge Domain for migration
  • Dual homing Layer 2 connectivity
• Layer 3 Connectivity
  • L3Out Building Blocks
  • Single L3Outs with Multiple Node Profiles vs Multiple L3Outs with single Node Profile
    • Traffic Shaping and traffic flow
• Layer 3 VPC
  • Special configuration for HA L4-L7 Devices
• Understanding Subnet options for Ext-EPG
• Advertising routes
  • Mapping L3Out to Bridge Domain
  • Using Route Maps
• Shared L3Outs
  • VRF Leaking overview and verification
  • Shared L3Out on Common Tenant
  • Shared L3Out on different tenants
• Transit Routing

Labs:

• Create a L2Out and consume a GW outside of ACI
• Replicate the config using an EPG extension
• Create a local L3Out
• Create a Shared L3Out
• Advertise routes not owned by ACI
• Configure an L3out to be preferred over other L3Outs

Session 9 – External Connectivity Part 2

Lecture:

• Layer 2 Connectivity
  • Understanding L2Outs
  • Understanding VLANs on ACI
  • Understanding EPG extensions
  • Unicast Routing option on Bridge Domain for migration
  • Dual homing Layer 2 connectivity
• Layer 3 Connectivity
  • L3Out Building Blocks
  • Single L3Outs with Multiple Node Profiles vs Multiple L3Outs with single Node Profile
    • Traffic Shaping and traffic flow
• Layer 3 VPC
  • Special configuration for HA L4-L7 Devices
• Understanding Subnet options for Ext-EPG
• Advertising routes
  • Mapping L3Out to Bridge Domain
  • Using Route Maps
• Shared L3Outs
  • VRF Leaking overview and verification
  • Shared L3Out on Common Tenant
  • Shared L3Out on different tenants
• Transit Routing

Labs:

• Create a L2Out and consume a GW outside of ACI
• Replicate the config using an EPG extension
• Create a local L3Out
• Create a Shared L3Out
• Advertise routes not owned by ACI
• Configure an L3out to be preferred over other L3Outs

Session 10 – Deployment Models and DevOps

Lecture:

• Naming Convention
• App Centric and Network Centric
  • EPG to Bridge Domain to VLAN and Subnet relationship
  • Generic VLAN/Subnet to App Driven VLAN/Subnet
• Whitelisting, Blacklisting, and Graylisting
• Benefits and Drawbacks
• Intro to Automation
  • Moquery
  • API inspector and postman
  • Python
• Cobra SDK

Labs:

• Recreating our lab topology thru Python and Postman

Session 11 – Troubleshooting

Lecture:

• Different CLI shells
• Common troubleshooting commands Structure to
• ACI troubleshooting
• Elam and fTriage CLI
• Understanding how to use show zoning rule
• Common faults and mistakes
• L3Out debugging in the ACI world

Labs:

• Use the discussed tools to troubleshoot connectivity issues between endpoints connected to the ACI fabric and end-points connected via L3Out

Session 12 – Multi-Site and Multi-Pod Part 1

Lecture:

• Active/Active, HA, Metro, and DR
  • What it means
  • How to choose the correct fit based on business requirements
• Multi-pod
  • Components
  • Requirements
  • Fabric forwarding between Pods
• Multi-site
  • Components
  • Requirements
  • Fabric forwarding between sites
  • Stretched vs non-stretched
  • Understanding Schema
  • Intersite L3Outs
• Azure and AWS

Labs:

• Verifying a multi-pod deployment
• Deploying Tenants using MSO
  • Configure App Profile and EPGs from MSO
  • Create Local and Stretched Bridge Domains

Session 13 – Multi-Site and Multi-Pod Part 2

Lecture:

• Active/Active, HA, Metro, and DR
  • What it means
  • How to choose the correct fit based on business requirements
• Multi-pod
  • Components
  • Requirements
  • Fabric forwarding between Pods
• Multi-site
  • Components
  • Requirements
  • Fabric forwarding between sites
  • Stretched vs non-stretched
  • Understanding Schema
  • Intersite L3Outs
• Azure and AWS

Labs:

• Verifying a Multi-pod deployment
• Deploying Tenants using MSO
  • Configure App Profile and EPGs from MSO
  • Create Local and Stretched Bridge Domains

Session 14 – Design and Migration Considerations

Lecture:

• Integrating ACI to legacy environments Migration Steps
• Migration considerations
• FW Considerations
  • Where do we place the GWs?
  • Designing based on Zones
  • To Service Graph or not to Service Graph
  • DMZ inside of ACI vs DMZ outside
  • Understanding inbound and outbound traffic flow for multi-DC solutions
  • Multi-cloud considerations
• LB considerations
  • Single or Multi-hop
• GSLB/GTM requirements for multi-DC solutions

Labs:

• Create a DMZ structure inside of ACI connecting to FWs and LBs
• Test Connectivity from the outside world