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Junxiao Shi, 08/09/2014 08:32 AM

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# NFD Management protocol
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NFD Management protocol allows users, tools, and control plane programs to retrieve, monitor, and alter NFD forwarder state.
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## Basic mechanisms
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NFD Management protocol uses Interest-Data exchange.
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**[[StatusDataset|Status Dataset]]** defines how status information about a collection of entities is encoded, segmented, and published as Data packets.
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This mechanism, as well as simple Interest-Data exchange, is useful for retrieving forwarder state.
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**[[Notification|Notification Stream]]** is a way to get updates about events happening in the forwarder.
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This mechanism is useful for monitoring forwarder state.
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**[[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.
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This mechanism is useful for altering forwarder state.
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## Modules
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**[[ForwarderStatus]]** publishes version information and global counters of the forwarder.
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**[[FaceMgmt|Face Management]]** provides:
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* commands to create and destroy faces
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* commands to enable and disable [[LocalControlHeader]] features on a face
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* a dataset of faces and their counters
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* a dataset of channels
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* a notification stream for face creating and destroying events
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**[[FibMgmt|FIB Management]]** provides:
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* commands to insert, update, and delete FIB entries and nexthop records
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* a dataset of FIB entries and nexthop records
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**[[StrategyChoice|Strategy Choice Management]]** provides:
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* commands to choose the forwarding strategy for a namespace
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* a dataset of strategy choices
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**[[RibMgmt|RIB Management]]** provides:
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* commands to register and unregister routes
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* a dataset of routes