SwitchAdapter Class Reference

A Module representing one OpenFlow switch. More...

#include <SwitchAdapter.hpp>

Inheritance diagram for SwitchAdapter:

Public Member Functions
	SwitchAdapter (const uint64_t switchId, std::shared_ptr< Poco::Net::SocketStream > socketStream, std::shared_ptr< Poco::Net::StreamSocket > switchSocket, const of_version_t ofVersion)
	~SwitchAdapter ()
virtual zmf::data::ZmfOutReply	handleRequest (const zmf::data::ZmfMessage &message, const zmf::data::ModuleUniqueId &sender) override

Protected Member Functions
virtual bool	enable ()
virtual void	disable ()

Detailed Description

A Module representing one OpenFlow switch.

The SwitchAdapter wraps each OpenFlow capable switch as a ZMF Module instance. An OpenFlow switch connects to a SwitchAdapter instance as it would normally connect to a controller.

Author

Alexander Kicherer

Andre Kutzleb

Matthias Hoppe

Date

28.06.2015

created on 28.6.2015

Remarks

Refactored / rewritten by Andre Kutzleb on 18.07.2015

IMPROVEMENT: Consider making nagles algorithm toggleable to optimize throughput to the switch

IMPROVEMENT: only passively answers echos and never times out currently.

IMPROVEMENT messages from zmf to switch: default is also the case for "illegal"(unknown/garbage) openFlow messages. may have to filter those as well (unknown type)

Constructor & Destructor Documentation

SwitchAdapter::SwitchAdapter	(	const uint64_t	switchId,
		std::shared_ptr< Poco::Net::SocketStream >	socketStream,
		std::shared_ptr< Poco::Net::StreamSocket >	switchSocket,
		const of_version_t	ofVersion
	)

Constructs (but does not start) A SwitchAdapter.

Parameters

switchId	the switchId of the switch represented by this SwitchAdapter.
socketStream	the stream connected to the socket socket representing the connection to the switch.
switchSocket	the socket representing the connection to the switch.
ofVersion	the OpenFlow version used for communicating with the switch.

SwitchAdapter::~SwitchAdapter

(

)

Destructor: In case this module is not correctly disabled by ZMF, disable is called so that no socket or thread is left behind by the SwitchAdapter.

Member Function Documentation

void SwitchAdapter::disable ( )

protectedvirtual

Closes the socket to the switch and stops the thread listening on the connection from the switch.

bool SwitchAdapter::enable ( )

protectedvirtual

starts a subscription for topic TO.SWITCH_ADAPTER.SWITCH_INSTANCE(this.switchId).OPENFLOW.* which will be handled by handleOpenFlowFromZmf.

Also starts a thread listing on the connection to the switch.

Returns

true of enable successful, false if the socket to the switch is closed or startup otherwise failed.

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

overridevirtual

Handles a ZMF request message - handles bundle deploy.

Parameters

message	the received ZMF message
sender	the ID of the sender of the received ZMF message

Returns

a to the message

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

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