ACI Overview
Getting Familiar with GUI
Agenda
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ACI Overview
Getting Familiar with GUI
Agenda
Application Centric Infrastructure
ACI
Nexus 9000 + APIC = ACI
What is ACI
The APCI controller is an engine for the entire
spine and leaf architecture.
CISCO THREE TIRE MODEL
E
S
N
BASIC COMPONENT'S OF ACI
1. Cisco’s Nexus 9000 Series switches
a. NX 9500 are spines
b. NX 9300 are leafs
2. Policy Model
a. ACI is declarative model (Not imperative )
b. Intent Driven network
3. APIC ( Application policy infrastructure Controller )
a. Which manages both overlay ( logical design of the network )
and underlay (physical design of the network )
b. Cisco UCS C220 ( Rack mount server from cisco )
4. ACI Fabric provides stateless infrastructure
INSTALLATION PROCESS
Step 1
INSTALLATION PROCESS
Step 3
BD=subnet=vlan=epg
INSTALLATION PROCESS
Step 4
OOB Management - IP address of APIC is given to the interface which will be used to SSH /
WEB GUI
END Points Groups (EPG’s)
- EPG - EP
- EP3 EP - EP - EP - EP - EP - EP - EPG - EPG - EP - EP3 EP - EP
- EPG Traffic between EPG’s is denied by default
- EP3 EP - EP - EP - EP - EP - EP - EPG - EPG - EP - EP3 EP - EP
- EP
- EP3 EP - EP - EPG - EPG - EP - EP3 EP - EP - EP - EP3 EP - EP
A contract typically refers to one or more “filters” to define specific
protocols & ports allowed between EPG’s
EPG 1
EPG 3 EPG 2
EP
EP
EP
EP
EP
EP
EP3 EP
EP
EP
EP3 EP
EP
EP
EP3 EP
EP
Permit TCP
Port 80
Port 443
Permit All IP
Contracts
Contracts
Contracts
Filters
Filters
Collection of EPG’s , polices , etc. that define how they communicate
form an Application Profile
EPG 1
EPG 3 EPG 2
EP
EP
EP
EP
EP
EP
EP3 EP
EP
EP
EP3 EP
EP
EP
EP3 EP
EP
Permit TCP
Port 80
Port 443
Permit All IP
Contracts
Contracts
Contracts
Filters
Filters
Different ways to configure in ACI
GUI
API
NX-OS Style (CLI)
TRADITIONAL VPC AND VPC’S ON ACI
No Peer switch or Peer link configuration
Switch or leaf profile