LinkDiscoveryModule Class Reference

#include <LinkDiscoveryModule.hpp>

Inheritance diagram for LinkDiscoveryModule:

Classes
struct	DiscoverDevice
class	LinkDevice
struct	LinkDeviceTimestampTupel

Public Member Functions
	LinkDiscoveryModule (uint64_t instanceId)
	~LinkDiscoveryModule ()
virtual zmf::data::ZmfOutReply	handleRequest (const zmf::data::ZmfMessage &message, const zmf::data::ModuleUniqueId &sender) override
virtual void	disable ()

Static Public Attributes
static const uint16_t	LINK_DISCOVERY_MESSAGE_PAYLOAD_TYPE = 0x511F
	The own specified Ethernet message type. More...

Protected Member Functions
virtual bool	enable ()

Detailed Description

The LinkDiscoveryModule knows about all links between switches in the SDN-network. These links are directed, meaning that if all switches have working bidirectional links between them, there will be two directed links for each connection.

Author

Matthias Strljic

Constructor & Destructor Documentation

LinkDiscoveryModule::LinkDiscoveryModule

(

uint64_t

instanceId

)

LinkDiscoveryModule::~LinkDiscoveryModule

(

)

Member Function Documentation

void LinkDiscoveryModule::disable ( )

virtual

Deactivates the loop condition of the background thread

bool LinkDiscoveryModule::enable ( )

protectedvirtual

Enables the module out of a disabled state. This will setup the needed subscriptions (OpenFlow::PacketIn + SwitchRegistry::SwitchStateChanged), the database with a call of all existing switches from the SwitchRegistryModule and starts the background Thread for continouse link discovery

Returns

True if all needed elements could be setup correctly (subscriptions + database + background thread)

zmf::data::ZmfOutReply LinkDiscoveryModule::handleRequest ( const zmf::data::ZmfMessage &  message, const zmf::data::ModuleUniqueId &  sender  )

overridevirtual

Handles the incoming request messages from the zmf-network and handle accordingly to the received topic. The replies always represent the actual state of discovered links between switch instances. REQUEST.LINK_DISCOVERY_MODULE.GET_ALL_SWITCH_LINKS: Replies all links. REQUEST.LINK_DISCOVERY_MODULE.GET_LINKS_FROM_SWITCH: Replies links where the given switch id acts as source. REQUEST.LINK_DISCOVERY_MODULE.GET_LINKS_TO_SWITCH: Replies links where the given switch id acts as endpoint. REQUEST.LINK_DISCOVERY_MODULE.GET_LINKS_OF_SWITCH: Replies all links where the given switch id act as source or endpoint. REQUEST.LINK_DISCOVERY_MODULE.GET_LINKS_BETWEEN_TWO_SWITCHES Replies all links which contains both id's, one act as source and the other as endpoint.

Parameters

message	The incoming ZmfMessage which contains information to the correlating Requests
sender	is a tuple to identify the instance inside the zmf network

Returns

True if we want to respond on the request, false otherwise

Member Data Documentation

const uint16_t LinkDiscoveryModule::LINK_DISCOVERY_MESSAGE_PAYLOAD_TYPE = 0x511F

static

The own specified Ethernet message type.

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The documentation for this class was generated from the following files:

• /home/zsdn/zsdn-git/modules/LinkDiscoveryModule/LinkDiscoveryModule.hpp
• /home/zsdn/zsdn-git/modules/LinkDiscoveryModule/LinkDiscoveryModule.cpp