olm/src/main/java/org/opendaylight/transportpce/olm/power/PowerMgmtImpl.java

   1 /*
   2  * Copyright © 2017 AT&T and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.transportpce.olm.power;
  10 import java.math.BigDecimal;
  11 import java.util.HashMap;
  12 import java.util.Locale;
  13 import java.util.Map;
  14 import java.util.Optional;
  15 import org.opendaylight.mdsal.binding.api.DataBroker;
  16 import org.opendaylight.transportpce.common.crossconnect.CrossConnect;
  17 import org.opendaylight.transportpce.common.device.DeviceTransactionManager;
  18 import org.opendaylight.transportpce.common.fixedflex.GridConstant;
  19 import org.opendaylight.transportpce.common.openroadminterfaces.OpenRoadmInterfaceException;
  20 import org.opendaylight.transportpce.common.openroadminterfaces.OpenRoadmInterfaces;
  21 import org.opendaylight.transportpce.olm.util.OlmUtils;
  22 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.olm.rev210618.ServicePowerSetupInput;
  23 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.olm.rev210618.ServicePowerTurndownInput;
  24 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210426.OpenroadmNodeVersion;
  25 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210426.mapping.Mapping;
  26 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210426.mapping.MappingKey;
  27 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210426.network.Nodes;
  28 import org.opendaylight.yang.gen.v1.http.org.openroadm.common.types.rev161014.OpticalControlMode;
  29 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.interfaces.grp.Interface;
  30 import org.opendaylight.yang.gen.v1.http.org.openroadm.optical.transport.interfaces.rev161014.Interface1;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33
  34 public class PowerMgmtImpl implements PowerMgmt {
  35     private static final Logger LOG = LoggerFactory.getLogger(PowerMgmtImpl.class);
  36     private final DataBroker db;
  37     private final OpenRoadmInterfaces openRoadmInterfaces;
  38     private final CrossConnect crossConnect;
  39     private final DeviceTransactionManager deviceTransactionManager;
  40     private static final BigDecimal DEFAULT_TPDR_PWR_100G = new BigDecimal(-5);
  41     private static final BigDecimal DEFAULT_TPDR_PWR_400G = new BigDecimal(0);
  42     private static final String INTERFACE_NOT_PRESENT = "Interface {} on node {} is not present!";
  43
  44     public PowerMgmtImpl(DataBroker db, OpenRoadmInterfaces openRoadmInterfaces,
  45                          CrossConnect crossConnect, DeviceTransactionManager deviceTransactionManager) {
  46         this.db = db;
  47         this.openRoadmInterfaces = openRoadmInterfaces;
  48         this.crossConnect = crossConnect;
  49         this.deviceTransactionManager = deviceTransactionManager;
  50     }
  51
  52     /**
  53      * This methods measures power requirement for turning up a WL
  54      * from the Spanloss at OTS transmit direction and update
  55      * roadm-connection target-output-power.
  56      *
  57      * @param input
  58      *            Input parameter from the olm servicePowerSetup rpc
  59      *
  60      * @return true/false based on status of operation.
  61      */
  62     //TODO Need to Case Optical Power mode/NodeType in case of 2.2 devices
  63     public Boolean setPower(ServicePowerSetupInput input) {
  64         LOG.info("Olm-setPower initiated for input {}", input);
  65         String spectralSlotName = String.join(GridConstant.SPECTRAL_SLOT_SEPARATOR,
  66                 input.getLowerSpectralSlotNumber().toString(),
  67                 input.getHigherSpectralSlotNumber().toString());
  68         for (int i = 0; i < input.getNodes().size(); i++) {
  69             String nodeId = input.getNodes().get(i).getNodeId();
  70             String destTpId = input.getNodes().get(i).getDestTp();
  71             Optional<Nodes> inputNodeOptional = OlmUtils.getNode(nodeId, this.db);
  72             if (inputNodeOptional.isEmpty()
  73                     || inputNodeOptional.get().getNodeInfo().getNodeType() == null) {
  74                 LOG.error("OLM-PowerMgmtImpl : Error node type cannot be retrieved for node {}", nodeId);
  75                 continue;
  76             }
  77             Nodes inputNode = inputNodeOptional.get();
  78             OpenroadmNodeVersion openroadmVersion = inputNode.getNodeInfo().getOpenroadmVersion();
  79
  80             switch (inputNode.getNodeInfo().getNodeType()) {
  81                 case Xpdr:
  82                     if (destTpId == null) {
  83                         continue;
  84                     }
  85                     LOG.info("Getting data from input node {}", inputNode.getNodeInfo().getNodeType());
  86                     LOG.info("Getting mapping data for node is {}",
  87                         inputNode.nonnullMapping().values().stream().filter(o -> o.key()
  88                          .equals(new MappingKey(destTpId))).findFirst().toString());
  89                     // If its not A-End transponder
  90                     if (!destTpId.toUpperCase(Locale.getDefault()).contains("NETWORK")) {
  91                         LOG.info("{} is a drop node. Net power settings needed", nodeId);
  92                         continue;
  93                     }
  94
  95                     BigDecimal powerVal = getXpdrPowerValue(
  96                             inputNode, destTpId, nodeId, openroadmVersion.getIntValue(),
  97                             input.getNodes().get(i + 1).getSrcTp(), input.getNodes().get(i + 1).getNodeId());
  98                     if (powerVal == null) {
  99                         return false;
 100                     }
 101
 102                     String interfaceName = String.join(GridConstant.NAME_PARAMETERS_SEPARATOR,
 103                         destTpId, spectralSlotName);
 104                     if (!callSetTransponderPower(nodeId, interfaceName, powerVal, openroadmVersion)) {
 105                         LOG.info("Transponder OCH connection: {} power update failed ", interfaceName);
 106                         continue;
 107                     }
 108                     LOG.info("Transponder OCH connection: {} power updated ", interfaceName);
 109                     try {
 110                         LOG.info("Now going in sleep mode");
 111                         Thread.sleep(OlmUtils.OLM_TIMER_1);
 112                     } catch (InterruptedException e) {
 113                         LOG.info("Transponder warmup failed for OCH connection: {}", interfaceName, e);
 114                         // FIXME shouldn't it be LOG.warn  or LOG.error?
 115                         // or maybe this try/catch block can simply be removed
 116                     }
 117                     break;
 118                 case Rdm:
 119                     LOG.info("This is a roadm {} device", openroadmVersion.getName());
 120                     String connectionNumber = String.join(GridConstant.NAME_PARAMETERS_SEPARATOR,
 121                             input.getNodes().get(i).getSrcTp(), destTpId, spectralSlotName);
 122                     LOG.info("Connection number is {}", connectionNumber);
 123
 124                     // If Drop node leave node is power mode
 125                     if (destTpId.toUpperCase(Locale.getDefault()).contains("SRG")) {
 126                         LOG.info("Setting power at drop node");
 127                         crossConnect.setPowerLevel(nodeId, OpticalControlMode.Power.getName(), null, connectionNumber);
 128                         continue;
 129                     }
 130                     if (!destTpId.toUpperCase(Locale.getDefault()).contains("DEG")) {
 131                         continue;
 132                     }
 133                     // If Degree is transmitting end then set power
 134                     Optional<Mapping> mappingObjectOptional = inputNode.nonnullMapping()
 135                             .values().stream().filter(o -> o.key()
 136                             .equals(new MappingKey(destTpId))).findFirst();
 137                     if (mappingObjectOptional.isEmpty()) {
 138                         continue;
 139                     }
 140                     // TODO can it be return false rather than continue?
 141                     // in that case, mappingObjectOptional could be moved inside method getSpanLossTx()
 142                     LOG.info("Dest point is Degree {}", mappingObjectOptional.get());
 143                     BigDecimal spanLossTx = getSpanLossTx(mappingObjectOptional.get().getSupportingOts(),
 144                         destTpId, nodeId, openroadmVersion.getIntValue());
 145
 146                     LOG.info("Spanloss TX is {}", spanLossTx);
 147                     if (spanLossTx == null || spanLossTx.intValue() <= 0 || spanLossTx.intValue() > 28) {
 148                         LOG.error("Power Value is null: spanLossTx null or out of openROADM range ]0,28] {}",
 149                                 spanLossTx);
 150                         return false;
 151                     }
 152                     BigDecimal powerValue = getRdmPowerValue(spanLossTx, input);
 153                     try {
 154                         if (!crossConnect.setPowerLevel(nodeId, OpticalControlMode.Power.getName(), powerValue,
 155                                 connectionNumber)) {
 156                             LOG.info("Set Power failed for Roadm-connection: {} on Node: {}",
 157                                     connectionNumber, nodeId);
 158                             // FIXME shouldn't it be LOG.error
 159                             return false;
 160                         }
 161                         LOG.info("Roadm-connection: {} updated ", connectionNumber);
 162                         Thread.sleep(OlmUtils.OLM_TIMER_2);
 163                         // TODO make this timer value configurable via OSGi blueprint
 164                         // although the value recommended by the white paper is 20 seconds.
 165                         // At least one vendor product needs 60 seconds
 166                         // because it is not supporting GainLoss with target-output-power.
 167
 168                         if (!crossConnect.setPowerLevel(nodeId, OpticalControlMode.GainLoss.getName(), powerValue,
 169                                 connectionNumber)) {
 170                             LOG.warn("Setting power-control mode off failed for Roadm-connection: {}",
 171                                 connectionNumber);
 172                             // FIXME no return false in that case?
 173                         }
 174                     } catch (InterruptedException e) {
 175                         LOG.error("Olm-setPower wait failed :", e);
 176                         return false;
 177                     }
 178                     break;
 179                 default :
 180                     LOG.error("OLM-PowerMgmtImpl : Error with node type for node {}", nodeId);
 181                     break;
 182             }
 183         }
 184         return true;
 185     }
 186
 187     private Map<String, Double> getTxPowerRangeMap(Nodes inputNode, String destTpId, String nodeId,
 188             Integer openroadmVersion) {
 189
 190         Optional<Mapping> mappingObject = inputNode.nonnullMapping().values().stream()
 191                 .filter(o -> o.key().equals(new MappingKey(destTpId))).findFirst();
 192         if (mappingObject.isEmpty()) {
 193             LOG.info("Mapping object not found for nodeId: {}", nodeId);
 194             // FIXME shouldn't it be LOG.error ?
 195             return null;
 196             // return null here means return false in setPower()
 197             // TODO Align protections with getSRGRxPowerRangeMap
 198         }
 199
 200         String circuitPackName = mappingObject.get().getSupportingCircuitPackName();
 201         String portName = mappingObject.get().getSupportingPort();
 202         switch (openroadmVersion) {
 203             case 1:
 204                 return PowerMgmtVersion121.getXponderPowerRange(circuitPackName, portName,
 205                     nodeId, deviceTransactionManager);
 206             case 2:
 207                 return PowerMgmtVersion221.getXponderPowerRange(circuitPackName, portName,
 208                     nodeId, deviceTransactionManager);
 209             case 3:
 210                 return PowerMgmtVersion710.getXponderPowerRange(circuitPackName, portName,
 211                     nodeId, deviceTransactionManager);
 212             default:
 213                 LOG.error("Unrecognized OpenRoadm version");
 214                 return new HashMap<>();
 215                 // FIXME shouldn't it lead to a return false in setPower()?
 216         }
 217     }
 218
 219
 220     private Map<String, Double> getSRGRxPowerRangeMap(String srgId, String nodeId, Integer openroadmVersion) {
 221
 222         Optional<Nodes> inputNode = OlmUtils.getNode(nodeId, this.db);
 223         int rdmOpenroadmVersion =
 224                 inputNode.isPresent()
 225                     ? inputNode.get().getNodeInfo().getOpenroadmVersion().getIntValue()
 226                     : openroadmVersion;
 227         Optional<Mapping> mappingObject = inputNode
 228                 .flatMap(node -> node.nonnullMapping().values().stream()
 229                     .filter(o -> o.key().equals(new MappingKey(srgId))).findFirst());
 230
 231         if (mappingObject.isEmpty()) {
 232             return new HashMap<>();
 233             // FIXME shouldn't it lead to a return false in setPower() ?
 234         }
 235
 236         String circuitPackName = mappingObject.get().getSupportingCircuitPackName();
 237         String portName = mappingObject.get().getSupportingPort();
 238         switch (rdmOpenroadmVersion) {
 239             case 1:
 240                 return PowerMgmtVersion121.getSRGRxPowerRange(nodeId, srgId,
 241                         deviceTransactionManager, circuitPackName, portName);
 242             case 2:
 243                 return PowerMgmtVersion221.getSRGRxPowerRange(nodeId, srgId,
 244                         deviceTransactionManager, circuitPackName, portName);
 245             case 3:
 246                 return PowerMgmtVersion710.getSRGRxPowerRange(nodeId, srgId,
 247                         deviceTransactionManager, circuitPackName, portName);
 248             default:
 249                 LOG.error("Unrecognized OpenRoadm version");
 250                 return null;
 251                 //return null here means return false in setPower()
 252                 // TODO Align protections with getTxPowerRangeMap
 253         }
 254     }
 255
 256     private BigDecimal getSpanLossTx(String supportingOts, String destTpId, String nodeId, Integer openroadmVersion) {
 257         try {
 258             switch (openroadmVersion) {
 259                 case 1:
 260                     Optional<Interface> interfaceOpt =
 261                         this.openRoadmInterfaces.getInterface(nodeId, supportingOts);
 262                     if (interfaceOpt.isEmpty()) {
 263                         LOG.error(INTERFACE_NOT_PRESENT, supportingOts, nodeId);
 264                         return null;
 265                     }
 266                     if (interfaceOpt.get().augmentation(Interface1.class).getOts()
 267                             .getSpanLossTransmit() == null) {
 268                         LOG.error("interface {} has no spanloss value", interfaceOpt.get().getName());
 269                         return null;
 270                     }
 271                     return interfaceOpt.get()
 272                             .augmentation(Interface1.class)
 273                             .getOts().getSpanLossTransmit().getValue();
 274                 case 2:
 275                     Optional<org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev181019
 276                             .interfaces.grp.Interface> interfaceOpt1 =
 277                         this.openRoadmInterfaces.getInterface(nodeId, supportingOts);
 278                     if (interfaceOpt1.isEmpty()) {
 279                         LOG.error(INTERFACE_NOT_PRESENT, supportingOts, nodeId);
 280                         return null;
 281                     }
 282                     if (interfaceOpt1.get().augmentation(org.opendaylight.yang.gen.v1.http.org
 283                             .openroadm.optical.transport.interfaces.rev181019.Interface1.class).getOts()
 284                                 .getSpanLossTransmit() == null) {
 285                         LOG.error("interface {} has no spanloss value", interfaceOpt1.get().getName());
 286                         return null;
 287                     }
 288                     return interfaceOpt1.get()
 289                             .augmentation(org.opendaylight.yang.gen.v1.http.org
 290                                 .openroadm.optical.transport.interfaces.rev181019.Interface1.class)
 291                             .getOts().getSpanLossTransmit().getValue();
 292                 // TODO no case 3 ?
 293                 default:
 294                     return null;
 295             }
 296         } catch (OpenRoadmInterfaceException ex) {
 297             LOG.error("Failed to get interface {} from node {}!",
 298                 supportingOts, nodeId, ex);
 299             return null;
 300         } catch (IllegalArgumentException ex) {
 301             LOG.error("Failed to get non existing interface {} from node {}!",
 302                 supportingOts, nodeId);
 303             return null;
 304         }
 305     }
 306
 307     private BigDecimal getXpdrPowerValue(Nodes inputNode, String destTpId, String nodeId, Integer openroadmVersion,
 308             String srgId, String nextNodeId) {
 309
 310         Map<String, Double> txPowerRangeMap = getTxPowerRangeMap(inputNode, destTpId, nodeId, openroadmVersion);
 311         if (txPowerRangeMap == null) {
 312             return null;
 313             // return null here means return false in setPower()
 314         }
 315         BigDecimal powerVal =
 316             openroadmVersion == 3 ? DEFAULT_TPDR_PWR_400G : DEFAULT_TPDR_PWR_100G;
 317         if (txPowerRangeMap.isEmpty()) {
 318             LOG.info("Tranponder range not available setting to default power for nodeId: {}", nodeId);
 319             return powerVal;
 320         }
 321
 322         Map<String, Double> rxSRGPowerRangeMap = getSRGRxPowerRangeMap(srgId, nextNodeId, openroadmVersion);
 323         if (rxSRGPowerRangeMap == null) {
 324             return null;
 325             // return null here means return false in setPower()
 326             // TODO empty txPowerRangeMap + null rxSRGPowerRangeMap is allowed
 327             // => confirm this behavior is OK
 328         }
 329         if (rxSRGPowerRangeMap.isEmpty()) {
 330             LOG.info("SRG Power Range not found, setting the Transponder range to default");
 331             return powerVal;
 332         }
 333
 334         powerVal = new BigDecimal(txPowerRangeMap.get("MaxTx"))
 335             .min(new BigDecimal(rxSRGPowerRangeMap.get("MaxRx")));
 336         LOG.info("Calculated Transponder Power value is {}" , powerVal);
 337         return powerVal;
 338     }
 339
 340
 341     private BigDecimal getRdmPowerValue(BigDecimal spanLossTx, ServicePowerSetupInput input) {
 342         BigDecimal powerValue = spanLossTx.subtract(BigDecimal.valueOf(9)).min(BigDecimal.valueOf(2));
 343         // we work at constant power spectral density (50 GHz channel width @-20dBm=37.5GHz)
 344         // 87.5 GHz channel width @-20dBm=75GHz
 345         if (input.getWidth() != null) {
 346             BigDecimal gridSize = input.getWidth().getValue();
 347             LOG.debug("Input Gridsize is {}",gridSize);
 348             if (gridSize.equals(GridConstant.WIDTH_80)) {
 349                 powerValue = powerValue.add(BigDecimal.valueOf(3));
 350             }
 351             // TODO no default or warning for unsupported grid sizes ?
 352         }
 353         // FIXME compliancy with OpenROADM MSA and approximations used
 354         // cf JIRA ticket https://jira.opendaylight.org/browse/TRNSPRTPCE-494
 355         LOG.info("Power Value is {}", powerValue);
 356         return powerValue;
 357     }
 358
 359     /**
 360      * This methods turns down power a WL by performing
 361      * following steps:
 362      *
 363      * <p>
 364      * 1. Pull interfaces used in service and change
 365      * status to outOfService
 366      *
 367      * <p>
 368      * 2. For each of the ROADM node set target-output-power
 369      * to -60dbm, wait for 20 seconds, turn power mode to off
 370      *
 371      * <p>
 372      * 3. Turn down power in Z to A direction and A to Z
 373      *
 374      * @param input
 375      *            Input parameter from the olm servicePowerTurndown rpc
 376      *
 377      * @return true/false based on status of operation
 378      */
 379     public Boolean powerTurnDown(ServicePowerTurndownInput input) {
 380         LOG.info("Olm-powerTurnDown initiated for input {}", input);
 381         /*Starting with last element into the list Z -> A for
 382           turning down A -> Z */
 383         String spectralSlotName = String.join(GridConstant.SPECTRAL_SLOT_SEPARATOR,
 384                 input.getLowerSpectralSlotNumber().toString(),
 385                 input.getHigherSpectralSlotNumber().toString());
 386         for (int i = input.getNodes().size() - 1; i >= 0; i--) {
 387             String nodeId = input.getNodes().get(i).getNodeId();
 388             String destTpId = input.getNodes().get(i).getDestTp();
 389             String connectionNumber =  String.join(GridConstant.NAME_PARAMETERS_SEPARATOR,
 390                     input.getNodes().get(i).getSrcTp(), destTpId, spectralSlotName);
 391             try {
 392                 if (destTpId.toUpperCase(Locale.getDefault()).contains("DEG")) {
 393                     if (!crossConnect.setPowerLevel(nodeId, OpticalControlMode.Power.getName(), new BigDecimal(-60),
 394                             connectionNumber)) {
 395                         LOG.warn("Power down failed for Roadm-connection: {}", connectionNumber);
 396                         return false;
 397                     }
 398                     Thread.sleep(OlmUtils.OLM_TIMER_2);
 399                     if (!crossConnect.setPowerLevel(nodeId, OpticalControlMode.Off.getName(), null, connectionNumber)) {
 400                         LOG.warn("Setting power-control mode off failed for Roadm-connection: {}", connectionNumber);
 401                         return false;
 402                     }
 403                 } else if (destTpId.toUpperCase(Locale.getDefault()).contains("SRG")) {
 404                     if (!crossConnect.setPowerLevel(nodeId, OpticalControlMode.Off.getName(), null, connectionNumber)) {
 405                         LOG.warn("Setting power-control mode off failed for Roadm-connection: {}", connectionNumber);
 406                         // FIXME a return false would allow sync with DEG case but makes current Unit tests fail
 407                     }
 408                 }
 409             } catch (InterruptedException e) {
 410                 // TODO Auto-generated catch block
 411                 LOG.error("Olm-powerTurnDown wait failed: ",e);
 412                 return false;
 413             }
 414         }
 415         return true;
 416     }
 417
 418     /**
 419      * This method retrieves transponder OCH interface and
 420      * sets power.
 421      *
 422      * @param nodeId
 423      *            Unique identifier for the mounted netconf- node
 424      * @param interfaceName
 425      *            OCH interface name carrying WL
 426      * @param txPower
 427      *            Calculated transmit power
 428      * @param openroadmVersion
 429      *            Version of openRoadm device software
 430      * @return true/false based on status of operation
 431      */
 432     private boolean callSetTransponderPower(String nodeId, String interfaceName, BigDecimal txPower,
 433                                             OpenroadmNodeVersion openroadmVersion) {
 434
 435         boolean powerSetupResult = false;
 436         try {
 437             switch (openroadmVersion.getIntValue()) {
 438                 case 1:
 439                     Optional<Interface> interfaceOptional121 =
 440                         openRoadmInterfaces.getInterface(nodeId, interfaceName);
 441                     if (interfaceOptional121.isEmpty()) {
 442                         LOG.error(INTERFACE_NOT_PRESENT, interfaceName, nodeId);
 443                         return false;
 444                     }
 445                     powerSetupResult = PowerMgmtVersion121.setTransponderPower(nodeId, interfaceName,
 446                             txPower, deviceTransactionManager, interfaceOptional121.get());
 447                     break;
 448                 case 2:
 449                     Optional<org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev181019.interfaces.grp
 450                             .Interface> interfaceOptional221 =
 451                         openRoadmInterfaces.getInterface(nodeId, interfaceName);
 452                     if (interfaceOptional221.isEmpty()) {
 453                         LOG.error(INTERFACE_NOT_PRESENT, interfaceName, nodeId);
 454                         return false;
 455                     }
 456                     powerSetupResult = PowerMgmtVersion221.setTransponderPower(nodeId, interfaceName,
 457                             txPower, deviceTransactionManager, interfaceOptional221.get());
 458                     break;
 459                 case 3:
 460                     Optional<org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev200529.interfaces.grp
 461                             .Interface> interfaceOptional710 =
 462                         openRoadmInterfaces.getInterface(nodeId, interfaceName);
 463                     if (interfaceOptional710.isEmpty()) {
 464                         LOG.error(INTERFACE_NOT_PRESENT, interfaceName, nodeId);
 465                         return false;
 466                     }
 467                     powerSetupResult = PowerMgmtVersion710.setTransponderPower(nodeId, interfaceName,
 468                             txPower, deviceTransactionManager, interfaceOptional710.get());
 469                     break;
 470                 default:
 471                     LOG.error("Unrecognized OpenRoadm version");
 472                     return false;
 473             }
 474         } catch (OpenRoadmInterfaceException ex) {
 475             LOG.error("Failed to get interface {} from node {}!", interfaceName, nodeId, ex);
 476             return false;
 477         }
 478         if (!powerSetupResult) {
 479             LOG.debug("Transponder power setup failed for nodeId {} on interface {}",
 480                     nodeId, interfaceName);
 481             return false;
 482         }
 483         LOG.debug("Transponder power set up completed successfully for nodeId {} and interface {}",
 484                 nodeId,interfaceName);
 485         return true;
 486     }
 487
 488 }