L2NodeConfigurator

simple module

This module has one instance per network node, and it acts like a bridge between the node and the network's global configurator module, L2NetworkConfigurator.

L2NetworkConfigurator only computes and remembers configuration data (port priority, link cost, etc.), but doesn't configure the nodes' routing tables and interfaces accordingly. The actual configuration is carried out by this module, at network initialization time and also when the node restarts (i.e. after a shutdown or a crash.)

This module is needed because of failure/restart scenarios: L2NetworkConfigurator would not be able to configure the node after a restart, because being a global module, it doesn't know about node lifecycle events.

Used in compound modules

Name	Type	Description
EthernetSwitch	compound module	Model of an Ethernet switch.

Parameters

Name	Type	Default value	Description
interfaceTableModule	string
l2ConfiguratorModule	string	"l2NetworkConfigurator"	the absolute path to the L2NetworkConfigurator; use "" if there is no configurator

Properties

Name	Value	Description
display	i=block/cogwheel

Direct method calls (observed)

call to	function	info
InterfaceTable	inet::InterfaceTable::interfaceChanged	interfaceChanged

Called methods (observed)

function	info	call from
inet::L2NodeConfigurator::handleOperationStage	handleOperationStage	ScenarioManager
inet::L2NodeConfigurator::receiveSignal	interfaceCreated	LayeredEthernetInterface

Tagging operations (observed)

tagType	tagAction
inet::Ieee8021dInterfaceData	addTag, getTagForUpdate

Source code

//
// This module has one instance per network node, and it acts like a bridge
// between the node and the network's global configurator module,
// ~L2NetworkConfigurator.
//
// ~L2NetworkConfigurator only computes and remembers configuration data
// (port priority, link cost, etc.), but doesn't configure the nodes'
// routing tables and interfaces accordingly. The actual configuration is
// carried out by this module, at network initialization time and also when
// the node restarts (i.e. after a shutdown or a crash.)
//
// This module is needed because of failure/restart scenarios:
// ~L2NetworkConfigurator would not be able to configure the node after
// a restart, because being a global module, it doesn't know about node
// lifecycle events.
//
simple L2NodeConfigurator
{
    parameters:
        @display("i=block/cogwheel");
        string interfaceTableModule;
        string l2ConfiguratorModule = default("l2NetworkConfigurator"); // the absolute path to the ~L2NetworkConfigurator; use "" if there is no configurator
}

File: src/inet/linklayer/configurator/L2NodeConfigurator.ned