NFD

# NFD Management protocol

NFD Management protocol allows users, tools, and control plane programs to retrieve, monitor, and alter NFD forwarder state.

## Basic mechanisms

NFD Management protocol uses Interest-Data exchange.

**[[StatusDataset|Status Dataset]]** defines how status information about a collection of entities is encoded, segmented, and published as Data packets.

This mechanism, as well as simple Interest-Data exchange, is useful for retrieving forwarder state.

**[[Notification|Notification Stream]]** is a way to get updates about events happening in the forwarder.

This mechanism is useful for monitoring forwarder state.

**[[ControlCommand|Control Command]]** defines the request and response format of commands that can alter forwarder state, and how these commands should be signed and authenticated.

This mechanism is useful for altering forwarder state.

## Modules

**[[ForwarderStatus|Forwarder Status]]** publishes version information and global counters of the forwarder.

**[[FaceMgmt|Face Management]]** provides:

* commands to create and destroy faces

* a dataset of faces and their counters

* a dataset of channels

* a notification stream for face creating and destroying events

**[[FibMgmt|FIB Management]]** provides:

* commands to insert, update, and delete FIB entries and nexthop records

* a dataset of FIB entries and nexthop records

**[[CsMgmt|Content Store Management]]** provides:

* commands to update CS config

* commands to delete certain CS entries

* a dataset of CS config and runtime performance

* a dataset of CS entries

**[[StrategyChoice|Strategy Choice Management]]** provides:

* commands to choose the forwarding strategy for a namespace

* a dataset of strategy choices

**[[MeasurementStatus|Measurement Status]]** [*experimental, not implemented*] publishes measurement information from forwarding strategies.

**[[RibMgmt|RIB Management]]** provides:

* commands to register and unregister routes

* a dataset of routes