Phases wheel:

1. Profile/Learning Phase – learn flows with high latency and throughput = monitored traffic classes (MTC).
2. Measure Phase – Collect and compute performance metrics for MTC.
3. Apply Policy Phase – create low and high thresholds defining in-policy and out-of-policy (OOP) categories.
4. Control Phase – influence by manipulating routing or PBR.
5. Verify Phase – verify OOP event to make adjustmets to bring back in-policy.

Inrefaces types:

1. Internal – connect to the internal network with Master Controller
2. External – used to transmit packets out of the local network. Interfaces that monitored. At least 2.
3. Local – used in the formation of the control plane mechanism. Source to communicate with Master Controller.

Operational Roles

Mandatory authentication – key-chains!

Master Controller (MC) and Border router (BR).

A single MC can support up to ten individual border routers
or up to 20 managed exit interfaces (external interfaces).

• Passive monitoring: Measuring the performance metrics of interesting prefixes while the traffic is flowing through the device using NetFlow technology

• Active monitoring: Creating a stream of synthetic traffic replicating the interesting traffic classes as closely as possible to measure the performance metrics of the synthetic traffic; uses Cisco integrated IP SLAs technology

• Both active and passive monitoring: Combining both active and passive monitoring to generate a more complete picture of traffic flows within the network