org.onosproject.pcep.controller.impl

Class PceccSrTeBeHandler

java.lang.Object

org.onosproject.pcep.controller.impl.PceccSrTeBeHandler

public final class PceccSrTeBeHandler
extends Object

PCE SR-BE and SR-TE functionality. SR-BE: Each node (PCC) is allocated a node-SID (label) by the PCECC. The PCECC sends PCLabelUpd to update the label map of each node to all the nodes in the domain. SR-TE: apart from node-SID, Adj-SID is used where each adjacency is allocated an Adj-SID (label) by the PCECC. The PCECC sends PCLabelUpd to update the label map of each Adj to the corresponding nodes in the domain.

Method Summary

Modifier and Type	Method and Description
boolean	allocateAdjacencyLabel(org.onosproject.net.Link link) Allocates adjacency label to a link from local resource pool by a specific device id.
boolean	allocateNodeLabel(org.onosproject.net.DeviceId specificDeviceId, String specificLsrId) Allocates node label from global node label pool to specific device.
LabelStack	computeLabelStack(org.onosproject.net.Path path) Computes label stack for a path.
static PceccSrTeBeHandler	getInstance() Returns single instance of this class.
String	getLsrId(org.onosproject.net.DeviceId deviceId) Retrieve lsr-id from device annotation.
void	initialize(LabelResourceAdminService labelRsrcAdminService, LabelResourceService labelRsrcService, PcepClientController clientController, PceLabelStore pceStore, org.onosproject.net.device.DeviceService deviceService) Initialization of label manager interfaces and pce store.
boolean	releaseAdjacencyLabel(org.onosproject.net.Link link) Releases unused adjacency labels from device pools.
boolean	releaseNodeLabel(org.onosproject.net.DeviceId specificDeviceId, String specificLsrId) Releases assigned node label of specific device from global node label pool and pce store.
boolean	reserveGlobalPool(long beginLabel, long endLabel) Reserves the global label pool.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getInstance

public static PceccSrTeBeHandler getInstance()

Returns single instance of this class.

Returns:

this class single instance

initialize

public void initialize(LabelResourceAdminService labelRsrcAdminService,
                       LabelResourceService labelRsrcService,
                       PcepClientController clientController,
                       PceLabelStore pceStore,
                       org.onosproject.net.device.DeviceService deviceService)

Initialization of label manager interfaces and pce store.

Parameters:

labelRsrcAdminService - label resource admin service

labelRsrcService - label resource service

clientController - client controller

pceStore - PCE label store

deviceService - device service

reserveGlobalPool

public boolean reserveGlobalPool(long beginLabel,
                                 long endLabel)

Reserves the global label pool.

Parameters:

beginLabel - minimum value of global label space

endLabel - maximum value of global label space

Returns:

success or failure

getLsrId

public String getLsrId(org.onosproject.net.DeviceId deviceId)

Retrieve lsr-id from device annotation.

Parameters:

deviceId - specific device id from which lsr-id needs to be retrieved

Returns:

lsr-id of a device

allocateNodeLabel

public boolean allocateNodeLabel(org.onosproject.net.DeviceId specificDeviceId,
                                 String specificLsrId)

Allocates node label from global node label pool to specific device. Configure this device with labels and lsrid mapping of all other devices and vice versa.

Parameters:

specificDeviceId - node label needs to be allocated to specific device

specificLsrId - lsrid of specific device

Returns:

success or failure

releaseNodeLabel

public boolean releaseNodeLabel(org.onosproject.net.DeviceId specificDeviceId,
                                String specificLsrId)

Releases assigned node label of specific device from global node label pool and pce store. and remove configured this node label from all other devices.

Parameters:

specificDeviceId - node label needs to be released for specific device

specificLsrId - lsrid of specific device

Returns:

success or failure

allocateAdjacencyLabel

public boolean allocateAdjacencyLabel(org.onosproject.net.Link link)

Allocates adjacency label to a link from local resource pool by a specific device id.

Parameters:

link - between devices

Returns:

success or failure

releaseAdjacencyLabel

public boolean releaseAdjacencyLabel(org.onosproject.net.Link link)

Releases unused adjacency labels from device pools.

Parameters:

link - between devices

Returns:

success or failure

computeLabelStack

public LabelStack computeLabelStack(org.onosproject.net.Path path)

Computes label stack for a path.

Parameters:

path - lsp path

Returns:

label stack