package org.opendaylight.transportpce.pce.graph;
import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
+import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.BitSet;
import java.util.Collections;
import java.util.HashMap;
+import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ExecutionException;
import java.util.stream.Collectors;
import org.jgrapht.GraphPath;
+import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
+import org.opendaylight.transportpce.common.InstanceIdentifiers;
import org.opendaylight.transportpce.common.ResponseCodes;
import org.opendaylight.transportpce.common.StringConstants;
+import org.opendaylight.transportpce.common.catalog.CatalogConstant;
+import org.opendaylight.transportpce.common.catalog.CatalogConstant.CatalogNodeType;
+import org.opendaylight.transportpce.common.catalog.CatalogUtils;
import org.opendaylight.transportpce.common.fixedflex.GridConstant;
import org.opendaylight.transportpce.common.fixedflex.GridUtils;
+import org.opendaylight.transportpce.common.network.NetworkTransactionService;
import org.opendaylight.transportpce.pce.constraints.PceConstraints;
import org.opendaylight.transportpce.pce.constraints.PceConstraints.ResourcePair;
+import org.opendaylight.transportpce.pce.networkanalyzer.PceLink;
import org.opendaylight.transportpce.pce.networkanalyzer.PceNode;
import org.opendaylight.transportpce.pce.networkanalyzer.PceResult;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.SpectrumAssignment;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.SpectrumAssignmentBuilder;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.network.types.rev211210.OpenroadmLinkType;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.otn.common.types.rev181130.OpucnTribSlotDef;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev240205.PceConstraintMode;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev240205.SpectrumAssignment;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev240205.SpectrumAssignmentBuilder;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.network.topology.rev230526.TerminationPoint1;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.network.types.rev230526.OpenroadmLinkType;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.network.types.rev230526.OpenroadmNodeType;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.otn.common.types.rev210924.OpucnTribSlotDef;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.NodeId;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.LinkId;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.opendaylight.yangtools.yang.common.Uint16;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/* Logging. */
private static final Logger LOG = LoggerFactory.getLogger(PostAlgoPathValidator.class);
- private static final double MIN_OSNR_W100G = 17;
- private static final double TRX_OSNR = 33;
- private static final double ADD_OSNR = 30;
public static final Long CONST_OSNR = 1L;
public static final double SYS_MARGIN = 0;
+ private Double tpceCalculatedMargin = 0.0;
+ private final NetworkTransactionService networkTransactionService;
+ private final BitSet spectrumConstraint;
+
+ public PostAlgoPathValidator(NetworkTransactionService networkTransactionService, BitSet spectrumConstraint) {
+ this.networkTransactionService = networkTransactionService;
+ this.spectrumConstraint = spectrumConstraint;
+ }
+
@SuppressWarnings("fallthrough")
@SuppressFBWarnings(
value = "SF_SWITCH_FALLTHROUGH",
justification = "intentional fallthrough")
public PceResult checkPath(GraphPath<String, PceGraphEdge> path, Map<NodeId, PceNode> allPceNodes,
- PceResult pceResult, PceConstraints pceHardConstraints, String serviceType) {
-
+ Map<LinkId, PceLink> allPceLinks, PceResult pceResult, PceConstraints pceHardConstraints,
+ String serviceType, PceConstraintMode mode) {
+ LOG.info("path = {}", path);
// check if the path is empty
if (path.getEdgeList().isEmpty()) {
pceResult.setRC(ResponseCodes.RESPONSE_FAILED);
return pceResult;
}
- int spectralWidthSlotNumber = GridConstant.SPECTRAL_WIDTH_SLOT_NUMBER_MAP
- .getOrDefault(serviceType, GridConstant.NB_SLOTS_100G);
+ int spectralWidthSlotNumber =
+ GridConstant.SPECTRAL_WIDTH_SLOT_NUMBER_MAP.getOrDefault(serviceType, GridConstant.NB_SLOTS_100G);
SpectrumAssignment spectrumAssignment = null;
//variable to deal with 1GE (Nb=1) and 10GE (Nb=10) cases
switch (serviceType) {
case StringConstants.SERVICE_TYPE_OTUC3:
case StringConstants.SERVICE_TYPE_OTUC4:
case StringConstants.SERVICE_TYPE_400GE:
- spectralWidthSlotNumber = GridConstant.SPECTRAL_WIDTH_SLOT_NUMBER_MAP
- .getOrDefault(serviceType, GridConstant.NB_SLOTS_400G);
+ spectralWidthSlotNumber =
+ GridConstant.SPECTRAL_WIDTH_SLOT_NUMBER_MAP.getOrDefault(serviceType, GridConstant.NB_SLOTS_400G);
//fallthrough
case StringConstants.SERVICE_TYPE_100GE_T:
case StringConstants.SERVICE_TYPE_OTU4:
} else {
LOG.debug("Spectrum assignment fixedgrid mode");
pceResult.setResultWavelength(
- GridUtils.getWaveLengthIndexFromSpectrumAssigment(spectrumAssignment.getBeginIndex()
- .toJava()));
+ GridUtils.getWaveLengthIndexFromSpectrumAssigment(spectrumAssignment.getBeginIndex().toJava()));
}
pceResult.setMinFreq(GridUtils.getStartFrequencyFromIndex(spectrumAssignment.getBeginIndex().toJava()));
pceResult.setMaxFreq(GridUtils.getStopFrequencyFromIndex(spectrumAssignment.getStopIndex().toJava()));
LOG.debug("In PostAlgoPathValidator: spectrum assignment found {} {}", spectrumAssignment, path);
// Check the OSNR
- if (!checkOSNR(path)) {
- pceResult.setRC(ResponseCodes.RESPONSE_FAILED);
- pceResult.setLocalCause(PceResult.LocalCause.OUT_OF_SPEC_OSNR);
- return pceResult;
+ CatalogUtils cu = new CatalogUtils(networkTransactionService);
+ if (cu.isCatalogFilled()) {
+ double margin1 = checkOSNR(path, allPceNodes, allPceLinks, serviceType,
+ StringConstants.SERVICE_DIRECTION_AZ, cu);
+ double margin2 = checkOSNR(path, allPceNodes, allPceLinks, serviceType,
+ StringConstants.SERVICE_DIRECTION_ZA, cu);
+ if (margin1 < 0 || margin2 < 0 || margin1 == Double.NEGATIVE_INFINITY
+ || margin2 == Double.NEGATIVE_INFINITY) {
+ pceResult.setRC(ResponseCodes.RESPONSE_FAILED);
+ pceResult.setLocalCause(PceResult.LocalCause.OUT_OF_SPEC_OSNR);
+ return pceResult;
+ }
+ this.tpceCalculatedMargin = Math.min(margin1, margin2);
+ LOG.info(
+ "In PostAlgoPathValidator: Minimum margin estimated by tpce on AtoZ and ZtoA path is of {} dB",
+ this.tpceCalculatedMargin);
+ } else {
+ this.tpceCalculatedMargin = 0.0;
+ LOG.info("In PostAlgoPathValidator: Operational mode Catalog not filled, delegate OSNR calculation"
+ + " to GNPy and margin set to 0");
}
-
// Check if MaxLatency is defined in the hard constraints
- if ((pceHardConstraints.getMaxLatency() != -1)
- && (!checkLatency(pceHardConstraints.getMaxLatency(), path))) {
+ if (pceHardConstraints.getMaxLatency() != -1
+ && !checkLatency(pceHardConstraints.getMaxLatency(), path)) {
pceResult.setRC(ResponseCodes.RESPONSE_FAILED);
pceResult.setLocalCause(PceResult.LocalCause.TOO_HIGH_LATENCY);
return pceResult;
}
-
// Check if nodes are included in the hard constraints
- if (!checkInclude(path, pceHardConstraints)) {
+ if (!checkInclude(path, pceHardConstraints, mode)) {
pceResult.setRC(ResponseCodes.RESPONSE_FAILED);
pceResult.setLocalCause(PceResult.LocalCause.HD_NODE_INCLUDE);
return pceResult;
}
-
// TODO here other post algo validations can be added
// more data can be sent to PceGraph module via PceResult structure if required
-
pceResult.setRC(ResponseCodes.RESPONSE_OK);
pceResult.setLocalCause(PceResult.LocalCause.NONE);
- break;
+ return pceResult;
case StringConstants.SERVICE_TYPE_100GE_M:
case StringConstants.SERVICE_TYPE_10GE:
case StringConstants.SERVICE_TYPE_1GE:
- Map<String, Integer> tribSlotNbMap = Map.of(
- StringConstants.SERVICE_TYPE_100GE_M, 20,
- StringConstants.SERVICE_TYPE_10GE, 8,
- StringConstants.SERVICE_TYPE_1GE, 1);
- int tribSlotNb = tribSlotNbMap.get(serviceType);
+ int tribSlotNb = Map.of(
+ StringConstants.SERVICE_TYPE_100GE_M, 20,
+ StringConstants.SERVICE_TYPE_10GE, 8,
+ StringConstants.SERVICE_TYPE_1GE, 1)
+ .get(serviceType);
pceResult.setRC(ResponseCodes.RESPONSE_FAILED);
pceResult.setServiceType(serviceType);
Map<String, List<Uint16>> tribSlot = chooseTribSlot(path, allPceNodes, tribSlotNb);
Map<String, Uint16> tribPort = chooseTribPort(path, allPceNodes, tribSlot, tribSlotNb);
List<OpucnTribSlotDef> resultTribPortTribSlot = getMinMaxTpTs(tribPort, tribSlot);
-
if (resultTribPortTribSlot.get(0) != null && resultTribPortTribSlot.get(1) != null) {
pceResult.setResultTribPortTribSlot(resultTribPortTribSlot);
pceResult.setRC(ResponseCodes.RESPONSE_OK);
LOG.info("In PostAlgoPathValidator: found TribPort {} - tribSlot {} - tribSlotNb {}",
tribPort, tribSlot, tribSlotNb);
}
- break;
+ return pceResult;
case StringConstants.SERVICE_TYPE_ODU4:
case StringConstants.SERVICE_TYPE_ODUC2:
case StringConstants.SERVICE_TYPE_ODUC3:
pceResult.setRC(ResponseCodes.RESPONSE_OK);
pceResult.setServiceType(serviceType);
LOG.info("In PostAlgoPathValidator: ODU4/ODUCn path found {}", path);
- break;
+ return pceResult;
default:
pceResult.setRC(ResponseCodes.RESPONSE_FAILED);
LOG.warn("In PostAlgoPathValidator checkPath: unsupported serviceType {} found {}",
serviceType, path);
- break;
+ return pceResult;
}
- return pceResult;
}
// Check the latency
private boolean checkLatency(Long maxLatency, GraphPath<String, PceGraphEdge> path) {
double latency = 0;
-
for (PceGraphEdge edge : path.getEdgeList()) {
if (edge.link() == null || edge.link().getLatency() == null) {
LOG.warn("- In checkLatency: the link {} does not contain latency field",
}
// Check the inclusion if it is defined in the hard constraints
- private boolean checkInclude(GraphPath<String, PceGraphEdge> path, PceConstraints pceHardConstraintsInput) {
- List<ResourcePair> listToInclude = pceHardConstraintsInput.getListToInclude()
- .stream().sorted((rp1, rp2) -> rp1.getName().compareTo(rp2.getName()))
- .collect(Collectors.toList());
+ //TODO: remove this checkstyle false positive warning when the checkstyle bug will be fixed
+ @SuppressWarnings("MissingSwitchDefault")
+ private boolean checkInclude(GraphPath<String, PceGraphEdge> path, PceConstraints pceHardConstraintsInput,
+ PceConstraintMode mode) {
+ List<ResourcePair> listToInclude = pceHardConstraintsInput.getListToInclude();
if (listToInclude.isEmpty()) {
return true;
}
-
List<PceGraphEdge> pathEdges = path.getEdgeList();
LOG.debug(" in checkInclude vertex list: [{}]", path.getVertexList());
-
+ LOG.debug("listToInclude = {}", listToInclude);
List<String> listOfElementsSubNode = new ArrayList<>();
listOfElementsSubNode.add(pathEdges.get(0).link().getsourceNetworkSupNodeId());
- listOfElementsSubNode.addAll(listOfElementsBuild(pathEdges, PceConstraints.ResourceType.NODE,
- pceHardConstraintsInput));
-
+ listOfElementsSubNode.addAll(
+ listOfElementsBuild(pathEdges, PceConstraints.ResourceType.NODE, pceHardConstraintsInput));
List<String> listOfElementsCLLI = new ArrayList<>();
listOfElementsCLLI.add(pathEdges.get(0).link().getsourceCLLI());
- listOfElementsCLLI.addAll(listOfElementsBuild(pathEdges, PceConstraints.ResourceType.CLLI,
- pceHardConstraintsInput));
-
+ listOfElementsCLLI.addAll(
+ listOfElementsBuild(pathEdges, PceConstraints.ResourceType.CLLI, pceHardConstraintsInput));
List<String> listOfElementsSRLG = new ArrayList<>();
// first link is XPONDEROUTPUT, no SRLG for it
listOfElementsSRLG.add("NONE");
- listOfElementsSRLG.addAll(listOfElementsBuild(pathEdges, PceConstraints.ResourceType.SRLG,
- pceHardConstraintsInput));
-
+ listOfElementsSRLG.addAll(
+ listOfElementsBuild(pathEdges, PceConstraints.ResourceType.SRLG, pceHardConstraintsInput));
// validation: check each type for each element
- List<String> listNodeToInclude = listToInclude
- .stream().filter(rp -> PceConstraints.ResourceType.NODE.equals(rp.getType()))
- .map(ResourcePair::getName).collect(Collectors.toList());
- List<String> listSrlgToInclude = listToInclude
- .stream().filter(rp -> PceConstraints.ResourceType.SRLG.equals(rp.getType()))
- .map(ResourcePair::getName).collect(Collectors.toList());
- List<String> listClliToInclude = listToInclude
- .stream().filter(rp -> PceConstraints.ResourceType.CLLI.equals(rp.getType()))
- .map(ResourcePair::getName).collect(Collectors.toList());
-
- return listOfElementsSubNode.containsAll(listNodeToInclude)
- && listOfElementsSRLG.containsAll(listSrlgToInclude)
- && listOfElementsCLLI.containsAll(listClliToInclude);
+ LOG.debug("listOfElementsSubNode = {}", listOfElementsSubNode);
+ return switch (mode) {
+ case Loose -> listOfElementsSubNode
+ .containsAll(listToInclude.stream()
+ .filter(rp -> PceConstraints.ResourceType.NODE.equals(rp.getType()))
+ .map(ResourcePair::getName).collect(Collectors.toList()));
+ case Strict -> listOfElementsSubNode
+ .equals(listToInclude.stream()
+ .filter(rp -> PceConstraints.ResourceType.NODE.equals(rp.getType()))
+ .map(ResourcePair::getName).collect(Collectors.toList()));
+ }
+ && listOfElementsSRLG.containsAll(
+ listToInclude
+ .stream().filter(rp -> PceConstraints.ResourceType.SRLG.equals(rp.getType()))
+ .map(ResourcePair::getName).collect(Collectors.toList()))
+ && listOfElementsCLLI.containsAll(
+ listToInclude
+ .stream().filter(rp -> PceConstraints.ResourceType.CLLI.equals(rp.getType()))
+ .map(ResourcePair::getName).collect(Collectors.toList()));
}
private List<String> listOfElementsBuild(List<PceGraphEdge> pathEdges, PceConstraints.ResourceType type,
- PceConstraints pceHardConstraints) {
-
- List<String> listOfElements = new ArrayList<>();
+ PceConstraints pceHardConstraints) {
+ Set<String> listOfElements = new LinkedHashSet<>();
for (PceGraphEdge link : pathEdges) {
switch (type) {
case NODE:
LOG.debug("listOfElementsBuild unsupported resource type");
}
}
- return listOfElements;
+ return new ArrayList<>(listOfElements);
}
private Map<String, Uint16> chooseTribPort(GraphPath<String,
- PceGraphEdge> path, Map<NodeId, PceNode> allPceNodes, Map<String, List<Uint16>> tribSlotMap, int nbSlot) {
+ PceGraphEdge> path, Map<NodeId, PceNode> allPceNodes, Map<String, List<Uint16>> tribSlotMap, int nbSlot) {
LOG.debug("In choosetribPort: edgeList = {} ", path.getEdgeList());
Map<String, Uint16> tribPortMap = new HashMap<>();
-
for (PceGraphEdge edge : path.getEdgeList()) {
- NodeId linkSrcNode = edge.link().getSourceId();
- String linkSrcTp = edge.link().getSourceTP().getValue();
- NodeId linkDestNode = edge.link().getDestId();
- String linkDestTp = edge.link().getDestTP().getValue();
- PceNode pceOtnNodeSrc = allPceNodes.get(linkSrcNode);
- PceNode pceOtnNodeDest = allPceNodes.get(linkDestNode);
- List<Uint16> srcTpnPool = pceOtnNodeSrc.getAvailableTribPorts().get(linkSrcTp);
- List<Uint16> destTpnPool = pceOtnNodeDest.getAvailableTribPorts().get(linkDestTp);
+ List<Uint16> srcTpnPool =
+ allPceNodes
+ .get(edge.link().getSourceId())
+ .getAvailableTribPorts()
+ .get(edge.link().getSourceTP().getValue());
+ List<Uint16> destTpnPool =
+ allPceNodes
+ .get(edge.link().getDestId())
+ .getAvailableTribPorts()
+ .get(edge.link().getDestTP().getValue());
List<Uint16> commonEdgeTpnPool = new ArrayList<>();
for (Uint16 srcTpn : srcTpnPool) {
if (destTpnPool.contains(srcTpn)) {
commonEdgeTpnPool.add(srcTpn);
}
}
-
- if (!commonEdgeTpnPool.isEmpty()) {
- Integer startTribSlot = tribSlotMap.values().stream().findFirst().get().get(0).toJava();
- Integer tribPort = (int) Math.ceil((double)startTribSlot / nbSlot);
- for (Uint16 commonTribPort : commonEdgeTpnPool) {
- if (tribPort.equals(commonTribPort.toJava())) {
- tribPortMap.put(edge.link().getLinkId().getValue(), commonTribPort);
- }
+ if (commonEdgeTpnPool.isEmpty()) {
+ continue;
+ }
+ Integer startTribSlot = tribSlotMap.values().stream().findFirst().orElseThrow().get(0).toJava();
+ Integer tribPort = (int) Math.ceil((double)startTribSlot / nbSlot);
+ for (Uint16 commonTribPort : commonEdgeTpnPool) {
+ if (tribPort.equals(commonTribPort.toJava())) {
+ tribPortMap.put(edge.link().getLinkId().getValue(), commonTribPort);
}
}
}
}
private Map<String, List<Uint16>> chooseTribSlot(GraphPath<String,
- PceGraphEdge> path, Map<NodeId, PceNode> allPceNodes, int nbSlot) {
+ PceGraphEdge> path, Map<NodeId, PceNode> allPceNodes, int nbSlot) {
LOG.debug("In choosetribSlot: edgeList = {} ", path.getEdgeList());
Map<String, List<Uint16>> tribSlotMap = new HashMap<>();
-
for (PceGraphEdge edge : path.getEdgeList()) {
- NodeId linkSrcNode = edge.link().getSourceId();
- String linkSrcTp = edge.link().getSourceTP().getValue();
- NodeId linkDestNode = edge.link().getDestId();
- String linkDestTp = edge.link().getDestTP().getValue();
- PceNode pceOtnNodeSrc = allPceNodes.get(linkSrcNode);
- PceNode pceOtnNodeDest = allPceNodes.get(linkDestNode);
- List<Uint16> srcTsPool = pceOtnNodeSrc.getAvailableTribSlots().get(linkSrcTp);
- List<Uint16> destTsPool = pceOtnNodeDest.getAvailableTribSlots().get(linkDestTp);
+ List<Uint16> srcTsPool =
+ allPceNodes
+ .get(edge.link().getSourceId())
+ .getAvailableTribSlots()
+ .get(edge.link().getSourceTP().getValue());
+ List<Uint16> destTsPool =
+ allPceNodes
+ .get(edge.link().getDestId())
+ .getAvailableTribSlots()
+ .get(edge.link().getDestTP().getValue());
List<Uint16> commonEdgeTsPoolList = new ArrayList<>();
List<Uint16> tribSlotList = new ArrayList<>();
for (Uint16 integer : srcTsPool) {
Collections.sort(commonEdgeTsPoolList);
List<Uint16> commonGoodStartEdgeTsPoolList = new ArrayList<>();
for (Uint16 startEdgeTsPool : commonEdgeTsPoolList) {
- if (Integer.valueOf(1).equals(startEdgeTsPool.toJava() % nbSlot)
- || nbSlot == 1) {
+ if (Integer.valueOf(1).equals(startEdgeTsPool.toJava() % nbSlot) || nbSlot == 1) {
commonGoodStartEdgeTsPoolList.add(startEdgeTsPool);
}
}
private List<OpucnTribSlotDef> getMinMaxTpTs(Map<String, Uint16> tribPort, Map<String, List<Uint16>> tribSlot) {
String tribport = tribPort.values().toArray()[0].toString();
- @SuppressWarnings("unchecked")
- List<Uint16> tsList = (List<Uint16>) tribSlot.values().toArray()[0];
- OpucnTribSlotDef minOpucnTs = OpucnTribSlotDef
- .getDefaultInstance(String.join(".", tribport, tsList.get(0).toString()));
- OpucnTribSlotDef maxOpucnTs = OpucnTribSlotDef
- .getDefaultInstance(String.join(".", tribport, tsList.get(tsList.size() - 1).toString()));
- List<OpucnTribSlotDef> minmaxTpTsList = new ArrayList<>();
- minmaxTpTsList.add(minOpucnTs);
- minmaxTpTsList.add(maxOpucnTs);
- return minmaxTpTsList;
+ @SuppressWarnings("unchecked") List<Uint16> tsList = (List<Uint16>) tribSlot.values().toArray()[0];
+ return new ArrayList<>(List.of(
+ OpucnTribSlotDef.getDefaultInstance(String.join(".", tribport, tsList.get(0).toString())),
+ OpucnTribSlotDef.getDefaultInstance(String.join(".", tribport, tsList.get(tsList.size() - 1).toString()))));
}
- // Check the path OSNR
- private boolean checkOSNR(GraphPath<String, PceGraphEdge> path) {
- double linkOsnrDb;
- double osnrDb = 0;
- LOG.info("- In checkOSNR: OSNR of the transmitter = {} dB", TRX_OSNR);
- LOG.info("- In checkOSNR: add-path incremental OSNR = {} dB", ADD_OSNR);
- double inverseLocalOsnr = getInverseOsnrLinkLu(TRX_OSNR) + getInverseOsnrLinkLu(ADD_OSNR);
- for (PceGraphEdge edge : path.getEdgeList()) {
- if (edge.link().getlinkType() == OpenroadmLinkType.ROADMTOROADM) {
- // link OSNR in dB
- linkOsnrDb = edge.link().getosnr();
- LOG.info("- In checkOSNR: OSNR of {} = {} dB", edge.link().getLinkId().getValue(), linkOsnrDb);
- // 1 over the local OSNR, in linear units
- inverseLocalOsnr += getInverseOsnrLinkLu(linkOsnrDb);
+ private double checkOSNR(GraphPath<String, PceGraphEdge> path, Map<NodeId, PceNode> allPceNodes,
+ Map<LinkId, PceLink> allPceLinks, String serviceType, String direction, CatalogUtils cu) {
+ switch (direction) {
+ case StringConstants.SERVICE_DIRECTION_AZ:
+ return checkOSNRaz(path, allPceNodes, allPceLinks, serviceType, cu);
+ case StringConstants.SERVICE_DIRECTION_ZA:
+ return checkOSNRza(path, allPceNodes, allPceLinks, serviceType, cu);
+ default:
+ LOG.error("PostAlgoPathValidator.CheckOSNR : unsupported direction {}", direction);
+ return 0.0;
+ }
+ }
+
+ /**
+ * Calculates the OSNR of a path, according to the direction (AtoZ/ZtoA), using the operational-modes Catalog.
+ *
+ * @param path the AtoZ path provided by the PCE.
+ * @param allPceNode The map of chosen/relevant PceNodes build from topology pruning.
+ * @param allPceLinks The map of PceLinks build corresponding to the whole topology.
+ * @param serviceType The service Type used to extrapolate Operational mode when it is not provided.
+ * @param cu CatalogUtils instance.
+ * @return the calculated margin according to the Transponder performances and path impairments.
+ */
+ private double checkOSNRaz(GraphPath<String, PceGraphEdge> path, Map<NodeId, PceNode> allPceNodes,
+ Map<LinkId, PceLink> allPceLinks, String serviceType, CatalogUtils cu) {
+ Map<String, Double> signal = new HashMap<>(
+ Map.of(
+ "spacing", Double.valueOf(50.0),
+ "calcPdl2", Double.valueOf(0),
+ "calcCd", Double.valueOf(0),
+ "calcPmd2", Double.valueOf(0),
+ "calcOnsrLin", Double.valueOf(0.0001),
+ "pwrIn", Double.valueOf(-60.0),
+ "pwrOut", Double.valueOf(-60.0)));
+ double calcOnsrdB = 0;
+ double margin = 0;
+ boolean transponderPresent = false;
+ List<String> vertices = path.getVertexList();
+ List<PceGraphEdge> edges = path.getEdgeList();
+ // LOOP that scans the different Nodes/Links of the path and calculates
+ // associated degradations
+ // using CatalogUtils primitives to retrieve physical parameters and make a
+ // first level calculation
+ int bypassDegree = 0;
+ for (int pathElement = 0; pathElement < 2; pathElement++) {
+ bypassDegree = 0;
+ PceNode currentNode = allPceNodes.get(new NodeId(vertices.get(pathElement)));
+ PceNode nextNode = allPceNodes.get(new NodeId(vertices.get(pathElement + 1)));
+ LOG.debug("loop of check OSNR direction AZ, Path Element = {}", pathElement);
+ switch (currentNode.getORNodeType()) {
+ case XPONDER:
+ LOG.debug("loop of check OSNR direction AZ: XPDR, Path Element = {}", pathElement);
+ transponderPresent = true;
+ calcXpdrOSNR(cu, signal,
+ pathElement == 0
+ // First transponder on the Path (TX side) / Last Xponder of the path (RX side)
+ ? edges.get(pathElement).link().getSourceTP().getValue()
+ : edges.get(pathElement - 1).link().getDestTP().getValue(),
+ serviceType, currentNode, nextNode, vertices.get(pathElement), pathElement);
+ break;
+ case SRG:
+ LOG.debug("loop of check OSNR direction AZ: SRG, Path Element = {}", pathElement);
+ // This is ADD case : First (optical-tunnel) or 2nd (Regular E2E service from
+ // Xponder to Xponder) node element of the path is the ADD SRG.
+ if (edges.get(pathElement).link().getlinkType() != OpenroadmLinkType.ADDLINK) {
+ LOG.error("Error processing Node {} for which output link {} is not an ADDLINK Type",
+ currentNode.getNodeId(), pathElement);
+ }
+ signal.put("pwrIn", Double.valueOf(0));
+ calcAddContrib(cu, signal, currentNode, edges.get(pathElement + 1).link());
+ LOG.debug("loop of check OSNR direction AZ: SRG, pathElement = {} link {} Pout = {}",
+ pathElement, pathElement + 1, signal.get("pwrOut"));
+ double calcOnsr = signal.get("calcOnsrLin").doubleValue();
+ if (calcOnsr == Double.NEGATIVE_INFINITY || calcOnsr == Double.POSITIVE_INFINITY) {
+ return -1.0;
+ }
+ // For the ADD, degradation brought by the node are calculated from the MW-WR spec.
+ // The Degree is not considered. This means we must bypass the add-link (ADD)
+ // and the next node (Degree) which are not considered in the impairments.
+ pathElement++;
+ bypassDegree = 1;
+ break;
+ case DEGREE:
+ default:
+ LOG.error("PostAlgoPathValidator.CheckOSNR : unsupported resource type in the path chain");
+ }
+ }
+ for (int pathElement = 2 + bypassDegree; pathElement < vertices.size() - 1; pathElement++) {
+ PceNode currentNode = allPceNodes.get(new NodeId(vertices.get(pathElement)));
+ PceNode nextNode = allPceNodes.get(new NodeId(vertices.get(pathElement + 1)));
+ LOG.debug("loop of check OSNR direction AZ: Path Element = {}", pathElement);
+ switch (currentNode.getORNodeType()) {
+ case SRG:
+ LOG.debug("loop of check OSNR direction AZ: SRG, Path Element = {}", pathElement);
+ // Other case is DROP, for which cnt is unchanged (.DROP)
+ if (edges.get(pathElement - 1).link().getlinkType() != OpenroadmLinkType.DROPLINK) {
+ LOG.error("Error processing Node {} for which input link {} is not a DROPLINK Type",
+ currentNode.getNodeId(), pathElement - 1);
+ }
+ PceLink pceLink = edges.get(pathElement - 2).link();
+ LOG.info("loop of check OSNR : SRG, pathElement = {} CD on preceeding link {} = {} ps",
+ pathElement, pathElement - 2, pceLink.getcd());
+ calcDropContrib(cu, signal, currentNode, pceLink);
+ double calcOnsr = signal.get("calcOnsrLin").doubleValue();
+ if (calcOnsr == Double.NEGATIVE_INFINITY || calcOnsr == Double.POSITIVE_INFINITY) {
+ return -1.0;
+ }
+ // If SRG is not the first or the second element of the Path, it is the DROP
+ // side.
+ // After accumulated degradations are calculated, we also need to calculate
+ // resulting OSNR in dB to pass it to the method that verifies end Xponder
+ // performances are compatible with degradations experienced on the path
+ try {
+ calcOnsrdB = getOsnrDbfromOnsrLin(calcOnsr);
+ LOG.info("checkOSNR loop, last SRG osnr is {} dB", calcOnsrdB);
+ LOG.info("Loop pathElement = {}, DROP, calcOnsrdB= {}", pathElement, calcOnsrdB);
+ } catch (ArithmeticException e) {
+ LOG.debug("In checkOSNR: OSNR is equal to 0 and the number of links is: {}",
+ path.getEdgeList().size());
+ return -1.0;
+ }
+ break;
+ case DEGREE:
+ if (nextNode.getORNodeType() != OpenroadmNodeType.DEGREE) {
+ //This is the case of DROP, ROADM degree is not considered
+ break;
+ }
+ LOG.info("loop of check OSNR direction AZ: DEGREE, Path Element = {}", pathElement);
+ calcBypassContrib(cu, signal, currentNode, nextNode,
+ edges.get(pathElement - 1).link(), edges.get(pathElement + 1).link());
+ double calcOnsrLin = signal.get("calcOnsrLin").doubleValue();
+ LOG.debug(
+ "Loop pathElement= {}, DEGREE, calcOnsrdB= {}", pathElement, getOsnrDbfromOnsrLin(calcOnsrLin));
+ if (calcOnsrLin == Double.NEGATIVE_INFINITY || calcOnsrLin == Double.POSITIVE_INFINITY) {
+ return -1.0;
+ }
+ // increment pathElement so that in next step we will not point to Degree2 but
+ // next node
+ pathElement++;
+ LOG.info("Accumulated degradations in the path including ROADM {} + {} are CD: {}; PMD2: "
+ + "{}; Pdl2 : {}; ONSRdB : {}", currentNode.getNodeId(), nextNode.getNodeId(),
+ signal.get("calcCd"), signal.get("calcPmd2"), signal.get("calcPdl2"),
+ getOsnrDbfromOnsrLin(calcOnsrLin));
+ break;
+ case XPONDER:
+ LOG.debug("loop of check OSNR direction AZ: XPDR, Path Element = {}", pathElement);
+ LOG.error("unsupported back to back transponder configuration");
+ return -1.0;
+ default:
+ LOG.error("PostAlgoPathValidator.CheckOSNR : unsupported resource type in the path chain");
+ }
+ }
+ PceNode currentNode = allPceNodes.get(new NodeId(vertices.get(vertices.size() - 1)));
+ LOG.debug("loop of check OSNR, Path Element = {}", vertices.size() - 1);
+ switch (currentNode.getORNodeType()) {
+ case XPONDER:
+ LOG.debug("loop of check OSNR direction AZ: XPDR, Path Element = {}", vertices.size() - 1);
+ transponderPresent = true;
+ // TSP is the last of the path
+ margin = getLastXpdrMargin(cu, signal, edges.get(vertices.size() - 2).link().getDestTP().getValue(),
+ serviceType, currentNode, vertices.get(vertices.size() - 1), vertices.size() - 1);
+ break;
+ case SRG:
+ LOG.debug("loop of check OSNR direction AZ: SRG, Path Element = {}", vertices.size() - 1);
+ // Other case is DROP, for which cnt is unchanged (.DROP)
+ if (edges.get(vertices.size() - 2).link().getlinkType() != OpenroadmLinkType.DROPLINK) {
+ LOG.error("Error processing Node {} for which input link {} is not a DROPLINK Type",
+ currentNode.getNodeId(), vertices.size() - 2);
+ }
+ PceLink pceLink = edges.get(vertices.size() - 3).link();
+ LOG.info("loop of check OSNR : SRG, pathElement = {} CD on preceeding link {} = {} ps",
+ vertices.size() - 1, vertices.size() - 3, pceLink.getcd());
+ calcDropContrib(cu, signal, currentNode, pceLink);
+ double calcOnsr = signal.get("calcOnsrLin").doubleValue();
+ //commented out to avoid spotbug DLS_DEAD_LOCAL_STORE pwrIn = impairments.get("pwrIn");
+ if (calcOnsr == Double.NEGATIVE_INFINITY || calcOnsr == Double.POSITIVE_INFINITY) {
+ return -1.0;
+ }
+ // If SRG is not the first or the second element of the Path, it is the DROP
+ // side.
+ // After accumulated degradations are calculated, we also need to calculate
+ // resulting OSNR in dB to pass it to the method that verifies end Xponder
+ // performances are compatible with degradations experienced on the path
+ try {
+ calcOnsrdB = getOsnrDbfromOnsrLin(calcOnsr);
+ LOG.info("checkOSNR loop, last SRG osnr is {} dB", calcOnsrdB);
+ LOG.info("Loop pathElement = {}, DROP, calcOnsrdB= {}", vertices.size() - 1, calcOnsrdB);
+ } catch (ArithmeticException e) {
+ LOG.debug("In checkOSNR: OSNR is equal to 0 and the number of links is: {}",
+ path.getEdgeList().size());
+ return -1.0;
+ }
+ break;
+ case DEGREE:
+ default:
+ LOG.error("PostAlgoPathValidator.CheckOSNR : unsupported resource type in the path chain last element");
+ }
+ LOG.info("- In checkOSNR: accumulated CD = {} ps, PMD = {} ps, PDL = {} dB, and resulting OSNR calcOnsrdB = {} "
+ + "dB and ONSR dB exterapolated from calcosnrlin = {} including non linear contributions",
+ signal.get("calcCd"), Math.sqrt(signal.get("calcPmd2").doubleValue()),
+ Math.sqrt(signal.get("calcPdl2").doubleValue()), calcOnsrdB,
+ getOsnrDbfromOnsrLin(signal.get("calcOnsrLin").doubleValue()));
+ if (!transponderPresent) {
+ LOG.info("No transponder in the path, User shall check from CD, PMD, and OSNR values provided "
+ + "that optical tunnel degradations are compatible with external transponder performances");
+ return 0.0;
+ }
+ double delta = margin - SYS_MARGIN;
+ LOG.info("In checkOSNR: Transponder Operational mode results in a residual margin of {} dB, according "
+ + "to CD, PMD and DGD induced penalties and set System Margin of {} dB.",
+ delta, SYS_MARGIN);
+ String validationMessage = delta >= 0 ? "VALIDATED" : "INVALIDATED";
+ LOG.info("- In checkOSNR: A to Z Path from {} to {} {}",
+ vertices.get(0), vertices.get(vertices.size() - 1), validationMessage);
+ return delta;
+ }
+
+ /**
+ * Calculates the OSNR of a path, according to the direction (AtoZ/ZtoA), using the operational-modes Catalog.
+ *
+ * @param path the AtoZ path provided by the PCE.
+ * @param allPceNode The map of chosen/relevant PceNodes build from topology pruning.
+ * @param allPceLinks The map of PceLinks build corresponding to the whole topology.
+ * @param serviceType The service Type used to extrapolate Operational mode when it is not provided.
+ * @param cu CatalogUtils instance.
+ * @return the calculated margin according to the Transponder performances and path impairments.
+ */
+ private double checkOSNRza(GraphPath<String, PceGraphEdge> path, Map<NodeId, PceNode> allPceNodes,
+ Map<LinkId, PceLink> allPceLinks, String serviceType, CatalogUtils cu) {
+ Map<String, Double> signal = new HashMap<>(
+ Map.of(
+ "spacing", Double.valueOf(50.0),
+ "calcPdl2", Double.valueOf(0),
+ "calcCd", Double.valueOf(0),
+ "calcPmd2", Double.valueOf(0),
+ "calcOnsrLin", Double.valueOf(0.0001),
+ "pwrIn", Double.valueOf(-60.0),
+ "pwrOut", Double.valueOf(-60.0)));
+ double calcOnsrdB = 0;
+ double margin = 0;
+ boolean transponderPresent = false;
+ List<String> vertices = path.getVertexList();
+ List<PceGraphEdge> edges = path.getEdgeList();
+ // LOOP that scans the different Nodes/Links of the path and calculates
+ // associated degradations
+ // using CatalogUtils primitives to retrieve physical parameters and make a
+ // first level calculation
+ int bypassDegree = 0;
+ for (int pathElement = vertices.size() - 1; pathElement > vertices.size() - 3; pathElement--) {
+ bypassDegree = 0;
+ PceNode currentNode = allPceNodes.get(new NodeId(vertices.get(pathElement)));
+ PceNode nextNode = allPceNodes.get(new NodeId(vertices.get(pathElement - 1)));
+ LOG.debug("loop of check OSNR direction ZA: Path Element = {}", pathElement);
+ switch (currentNode.getORNodeType()) {
+ case XPONDER:
+ LOG.debug("loop of check OSNR direction ZA: XPDR, Path Element = {}", pathElement);
+ transponderPresent = true;
+ calcXpdrOSNR(cu, signal,
+ pathElement == vertices.size() - 1
+ // First transponder on the Path (TX side) / Last Xponder of the path (RX side)
+ ? getOppPceLink(pathElement - 1, edges, allPceLinks).getSourceTP().getValue()
+ : getOppPceLink((pathElement), edges, allPceLinks).getDestTP().getValue(),
+ serviceType, currentNode, nextNode, vertices.get(pathElement), pathElement);
+ break;
+ case SRG:
+ LOG.debug("loop of check OSNR direction ZA: SRG, Path Element = {}", pathElement);
+ // This is ADD case : First (optical-tunnel) or 2nd (Regular E2E service from
+ // Xponder to Xponder) node element of the path is the ADD SRG.
+ if (getOppPceLink(pathElement - 1, edges, allPceLinks).getlinkType() != OpenroadmLinkType.ADDLINK) {
+ LOG.error("Error processing Node {} for which output link {} is not an ADDLINK Type",
+ currentNode.getNodeId(), pathElement - 1);
+ }
+ signal.put("pwrIn", Double.valueOf(0));
+ calcAddContrib(cu, signal, currentNode, getOppPceLink(pathElement - 2, edges, allPceLinks));
+ double calcOnsr = signal.get("calcOnsrLin").doubleValue();
+ if (calcOnsr == Double.NEGATIVE_INFINITY || calcOnsr == Double.POSITIVE_INFINITY) {
+ return -1.0;
+ }
+ // For the ADD, degradation brought by the node are calculated from the MW-WR spec.
+ // The Degree is not considered. This means we must bypass the add-link (ADD)
+ // and the next node (Degree) which are not considered in the impairments.
+ pathElement--;
+ bypassDegree = 1;
+ break;
+ case DEGREE:
+ default:
+ LOG.error("PostAlgoPathValidator.CheckOSNR : unsupported resource type in the path chain");
+ }
+ }
+ for (int pathElement = vertices.size() - 3 - bypassDegree; pathElement > 0; pathElement--) {
+ PceNode currentNode = allPceNodes.get(new NodeId(vertices.get(pathElement)));
+ PceNode nextNode = allPceNodes.get(new NodeId(vertices.get(pathElement - 1)));
+ LOG.debug("loop of check OSNR direction ZA: Path Element = {}", pathElement);
+ switch (currentNode.getORNodeType()) {
+ case SRG:
+ LOG.debug("loop of check OSNR direction ZA: SRG, Path Element = {}", pathElement);
+ if (getOppPceLink(pathElement, edges, allPceLinks).getlinkType() != OpenroadmLinkType.DROPLINK) {
+ LOG.error("Error processing Node {} for which input link {} is not a DROPLINK Type",
+ currentNode.getNodeId(), pathElement);
+ }
+ PceLink pceLink = getOppPceLink(pathElement + 1, edges, allPceLinks);
+ LOG.info("loop of check OSNR direction ZA: SRG, path Element = {} CD on preceeding link {} = {} ps",
+ pathElement, pathElement + 1, pceLink.getcd());
+ calcDropContrib(cu, signal, currentNode, pceLink);
+ double calcOnsr = signal.get("calcOnsrLin").doubleValue();
+ if (calcOnsr == Double.NEGATIVE_INFINITY || calcOnsr == Double.POSITIVE_INFINITY) {
+ return -1.0;
+ }
+ // If SRG is not the first or the second element of the Path, it is the DROP
+ // side.
+ // After accumulated degradations are calculated, we also need to calculate
+ // resulting OSNR in dB to pass it to the method that verifies end Xponder
+ // performances are compatible with degradations experienced on the path
+ try {
+ calcOnsrdB = getOsnrDbfromOnsrLin(calcOnsr);
+ LOG.info("checkOSNR loop, last SRG osnr is {} dB", calcOnsrdB);
+ LOG.info("Loop Path Element = {}, DROP, calcOnsrdB= {}", pathElement, calcOnsrdB);
+ } catch (ArithmeticException e) {
+ LOG.debug("In checkOSNR: OSNR is equal to 0 and the number of links is: {}",
+ path.getEdgeList().size());
+ return -1.0;
+ }
+ break;
+ case DEGREE:
+ if (nextNode.getORNodeType() != OpenroadmNodeType.DEGREE) {
+ //This is the case of DROP, ROADM degree is not considered
+ break;
+ }
+ LOG.info("loop of check OSNR direction ZA: DEGREE, Path Element = {}", pathElement);
+ calcBypassContrib(cu, signal, currentNode, nextNode,
+ getOppPceLink(pathElement, edges, allPceLinks),
+ getOppPceLink(pathElement - 2, edges, allPceLinks));
+ double calcOnsrLin = signal.get("calcOnsrLin").doubleValue();
+ LOG.debug("Loop Path Element = {}, DEGREE, calcOnsrdB= {}",
+ pathElement, getOsnrDbfromOnsrLin(calcOnsrLin));
+ if (calcOnsrLin == Double.NEGATIVE_INFINITY || calcOnsrLin == Double.POSITIVE_INFINITY) {
+ return -1.0;
+ }
+ // increment pathElement so that in next step we will not point to Degree2 but
+ // next node
+ pathElement--;
+ LOG.info("Accumulated degradations in the path including ROADM {} + {} are CD: {}; PMD2: "
+ + "{}; Pdl2 : {}; ONSRdB : {}", currentNode.getNodeId(), nextNode.getNodeId(),
+ signal.get("calcCd"), signal.get("calcPmd2"), signal.get("calcPdl2"),
+ getOsnrDbfromOnsrLin(calcOnsrLin));
+ break;
+ case XPONDER:
+ LOG.debug("loop of check OSNR direction AZ: XPDR, Path Element = {}", pathElement);
+ LOG.error("unsupported back to back transponder configuration");
+ return -1.0;
+ default:
+ LOG.error("PostAlgoPathValidator.CheckOSNR : unsupported resource type in the path chain");
}
}
+ PceNode currentNode = allPceNodes.get(new NodeId(vertices.get(0)));
+ LOG.debug("loop of check OSNR direction ZA: Path Element = 0");
+ switch (currentNode.getORNodeType()) {
+ case XPONDER:
+ LOG.debug("loop of check OSNR direction ZA: XPDR, Path Element = 0");
+ transponderPresent = true;
+ // TSP is the last of the path
+ margin = getLastXpdrMargin(cu, signal, getOppPceLink(0, edges, allPceLinks).getDestTP().getValue(),
+ serviceType, currentNode, vertices.get(0), 0);
+ break;
+ case SRG:
+ LOG.debug("loop of check OSNR direction ZA: SRG, Path Element = 0");
+ if (getOppPceLink(0, edges, allPceLinks).getlinkType() != OpenroadmLinkType.DROPLINK) {
+ LOG.error("Error processing Node {} for which input link 0 is not a DROPLINK Type",
+ currentNode.getNodeId());
+ }
+ PceLink pceLink = getOppPceLink(1, edges, allPceLinks);
+ LOG.info("loop of check OSNR direction ZA: SRG, path Element = 0 CD on preceeding link 1 = {} ps",
+ pceLink.getcd());
+ calcDropContrib(cu, signal, currentNode, pceLink);
+ double calcOnsr = signal.get("calcOnsrLin").doubleValue();
+ //commented out to avoid spotbug DLS_DEAD_LOCAL_STORE pwrIn = impairments.get("pwrIn");
+ if (calcOnsr == Double.NEGATIVE_INFINITY || calcOnsr == Double.POSITIVE_INFINITY) {
+ return -1.0;
+ }
+ // If SRG is not the first or the second element of the Path, it is the DROP
+ // side.
+ // After accumulated degradations are calculated, we also need to calculate
+ // resulting OSNR in dB to pass it to the method that verifies end Xponder
+ // performances are compatible with degradations experienced on the path
+ try {
+ calcOnsrdB = getOsnrDbfromOnsrLin(calcOnsr);
+ LOG.info("checkOSNR loop, last SRG osnr is {} dB", calcOnsrdB);
+ LOG.info("Loop Path Element = 0, DROP, calcOnsrdB= {}", calcOnsrdB);
+ } catch (ArithmeticException e) {
+ LOG.debug("In checkOSNR: OSNR is equal to 0 and the number of links is: {}",
+ path.getEdgeList().size());
+ return -1.0;
+ }
+ break;
+ case DEGREE:
+ default:
+ LOG.error("PostAlgoPathValidator.CheckOSNR : unsupported resource type in the path chain last element");
+ }
+ LOG.info("- In checkOSNR: accumulated CD = {} ps, PMD = {} ps, PDL = {} dB, and resulting OSNR calcOnsrdB = {} "
+ + "dB and ONSR dB exterapolated from calcosnrlin = {} including non linear contributions",
+ signal.get("calcCd"), Math.sqrt(signal.get("calcPmd2").doubleValue()),
+ Math.sqrt(signal.get("calcPdl2").doubleValue()), calcOnsrdB,
+ getOsnrDbfromOnsrLin(signal.get("calcOnsrLin").doubleValue()));
+ if (!transponderPresent) {
+ LOG.info("No transponder in the path, User shall check from CD, PMD, and OSNR values provided "
+ + "that optical tunnel degradations are compatible with external transponder performances");
+ return 0.0;
+ }
+ double delta = margin - SYS_MARGIN;
+ LOG.info("In checkOSNR: Transponder Operational mode results in a residual margin of {} dB, according "
+ + "to CD, PMD and DGD induced penalties and set System Margin of {} dB.",
+ delta, SYS_MARGIN);
+ String validationMessage = delta >= 0 ? "VALIDATED" : "INVALIDATED";
+ LOG.info("- In checkOSNR: Z to A Path from {} to {} {}",
+ vertices.get(vertices.size() - 1), vertices.get(0), validationMessage);
+ return delta;
+ }
+
+ private String setOpMode(String opMode, String defaultMode) {
+ return
+ opMode == null || opMode.isEmpty() || opMode.contentEquals(StringConstants.UNKNOWN_MODE)
+ ? defaultMode
+ : opMode;
+ }
+
+ private PceLink getOppPceLink(Integer pathEltNber, List<PceGraphEdge> edges,
+ Map<LinkId, PceLink> allPceLinks) {
+ return allPceLinks.get(new LinkId(edges.get(pathEltNber).link().getOppositeLink()));
+ }
+
+ private String getXpdrOpMode(String nwTpId, String vertice, int pathElement, PceNode currentNode,
+ String serviceType, CatalogUtils cu) {
+ InstanceIdentifier<TerminationPoint1> nwTpIid =
+ InstanceIdentifiers.createNetworkTerminationPoint1IIDBuilder(vertice, nwTpId);
+ String opMode = cu.getPceOperationalModeFromServiceType(CatalogConstant.CatalogNodeType.TSP, serviceType);
try {
- osnrDb = getOsnrDb(1 / inverseLocalOsnr);
- } catch (ArithmeticException e) {
- LOG.debug("In checkOSNR: OSNR is equal to 0 and the number of links is: {}", path.getEdgeList().size());
- return false;
+ if (networkTransactionService.read(LogicalDatastoreType.CONFIGURATION, nwTpIid).get().isPresent()) {
+ // If the operational mode of the Xponder is not consistent nor declared in the topology (Network TP)
+ opMode = setOpMode(
+ currentNode.getXponderOperationalMode(
+ networkTransactionService
+ .read(LogicalDatastoreType.CONFIGURATION, nwTpIid)
+ .get().orElseThrow().getXpdrNetworkAttributes()),
+ // Operational mode is found as an attribute of the network TP
+ opMode);
+ // Operational mode is retrieved from the service Type assuming it is supported
+ // by the Xponder
+ LOG.debug(
+ "Transponder {} corresponding to path Element {} in the path has {} operational mode",
+ currentNode.getNodeId().getValue(), pathElement, opMode);
+ return opMode;
+ }
+ } catch (InterruptedException | ExecutionException e1) {
+ LOG.error("Issue accessing the XponderNetworkAttributes of {} for Transponder {}"
+ + " corresponding to path Element {} in the path ",
+ nwTpId, currentNode.getNodeId().getValue(), pathElement);
+ }
+ LOG.info("Did not succeed finding network TP {} in Configuration Datastore. Retrieve"
+ + " default Operational Mode {} from serviceType {}", nwTpId, opMode, serviceType);
+ return opMode;
+ }
+
+ private double getLastXpdrMargin(
+ CatalogUtils cu, Map<String, Double> signal,
+ String nwTpId, String serviceType, PceNode currentNode, String vertice, int pathElement) {
+ LOG.debug("Loop Path Element = {}, Step5.1, XPDR, tries calculating Margin, just before call", pathElement);
+ // Check that accumulated degradations are compatible with TSP performances
+ // According to OpenROADM spec :
+ // margin = cu.getPceRxTspParameters(opMode, calcCd, Math.sqrt(calcPmd2), Math.sqrt(calcPdl2),
+ // getOsnrDbfromOnsrLin(calcOnsrLin));
+ // Calculation modified for pdl according to calculation in Julia's Tool
+ double calcOnsrdB = getOsnrDbfromOnsrLin(signal.get("calcOnsrLin").doubleValue());
+ LOG.info("Loop Path Element = {}, XPDR, calcosnrdB= {}", pathElement, calcOnsrdB);
+ return cu.getPceRxTspParameters(
+ getXpdrOpMode(nwTpId, vertice, pathElement, currentNode, serviceType, cu),
+ signal.get("calcCd").doubleValue(),
+ Math.sqrt(signal.get("calcPmd2").doubleValue()),
+ Math.sqrt(signal.get("calcPdl2").doubleValue()),
+ calcOnsrdB);
+ }
+
+ private void calcXpdrOSNR(
+ CatalogUtils cu, Map<String, Double> signal, String nwTpId, String serviceType,
+ PceNode currentNode, PceNode nextNode, String vertice, int pathElement) {
+ // If the Xponder operational mode (setOpMode Arg1) is not consistent nor declared in the topology (Network TP)
+ // Operational mode is retrieved from the service Type assuming it is supported by the Xponder (setOpMode Arg2)
+ String opMode = getXpdrOpMode(nwTpId, vertice, pathElement, currentNode, serviceType, cu);
+ // If the operational mode of the ADD/DROP MUX is not consistent nor declared in the topology (Network TP)
+ // Operational mode is set by default to standard opMode for ADD SRGs
+ String adnMode = setOpMode(nextNode.getOperationalMode(), CatalogConstant.MWWRCORE);
+ double calcOnsrLin = cu.getPceTxTspParameters(opMode, adnMode);
+ LOG.debug(
+ "Transponder {} corresponding to path Element {} is connected to SRG which has {} operational mode",
+ currentNode.getNodeId().getValue(), pathElement, adnMode);
+ LOG.info("Transponder {} corresponding to path Element {} in the path has a TX OSNR of {} dB",
+ currentNode.getNodeId().getValue(), pathElement, getOsnrDbfromOnsrLin(calcOnsrLin));
+ // Return the Tx ONSR of the Xponder which results from IB and OOB OSNR contributions
+ // and the spacing associated with Xponder operational mode that is needed to calculate OSNR
+ signal.put("spacing", Double.valueOf(cu.getPceTxTspChannelSpacing(opMode)));
+ signal.put("calcOnsrLin", Double.valueOf(calcOnsrLin));
+ }
+
+ private void calcDropContrib(
+ CatalogUtils cu, Map<String, Double> signal, PceNode currentNode, PceLink pceLink) {
+ //calculation of the SRG contribution for Drop
+ calcLineDegradation(cu, signal, pceLink);
+ Map<String, Double> impairments = cu.getPceRoadmAmpParameters(
+ CatalogConstant.CatalogNodeType.DROP,
+ setOpMode(currentNode.getOperationalMode(), CatalogConstant.MWWRCORE),
+ // If the operational mode of the ADD/DROP MUX is not consistent or not declared in the topology (Network TP)
+ // Operational mode is set by default to standard opMode for ADD/DROP SRGs
+ signal.get("pwrIn").doubleValue(),
+ signal.get("calcCd").doubleValue(),
+ signal.get("calcPmd2").doubleValue(),
+ signal.get("calcPdl2").doubleValue(),
+ signal.get("calcOnsrLin").doubleValue(),
+ signal.get("spacing").doubleValue());
+ signal.putAll(
+ Map.of(
+ "calcCd", impairments.get("CD"),
+ "calcPmd2", impairments.get("DGD2"),
+ "calcPdl2", impairments.get("PDL2"),
+ "calcOnsrLin", impairments.get("ONSRLIN")));
+ }
+
+ private void calcAddContrib(
+ CatalogUtils cu, Map<String, Double> signal, PceNode currentNode, PceLink pceLink) {
+ //calculation of the SRG contribution for Add
+ String srgMode = setOpMode(currentNode.getOperationalMode(), CatalogConstant.MWWRCORE);
+ // If the operational mode of the ADD/DROP MUX is not consistent or is not declared in the topology (Network TP)
+ // Operational mode is set by default to standard opMode for ADD/DROP SRGs
+ CatalogNodeType cnt = CatalogConstant.CatalogNodeType.ADD;
+ double pwrOut = cu.getPceRoadmAmpOutputPower(
+ cnt, srgMode, pceLink.getspanLoss(), signal.get("spacing").doubleValue(), pceLink.getpowerCorrection());
+ //calculation of the SRG contribution either for Add and Drop
+ Map<String, Double> impairments = cu.getPceRoadmAmpParameters(cnt, srgMode, 0,
+ signal.get("calcCd").doubleValue(), signal.get("calcPmd2").doubleValue(),
+ signal.get("calcPdl2").doubleValue(),
+ signal.get("calcOnsrLin").doubleValue(), signal.get("spacing").doubleValue());
+ signal.putAll(
+ Map.of(
+ "calcCd", impairments.get("CD"),
+ "calcPmd2", impairments.get("DGD2"),
+ "calcPdl2", impairments.get("PDL2"),
+ "calcOnsrLin", impairments.get("ONSRLIN"),
+ "pwrOut", Double.valueOf(pwrOut)));
+ }
+
+ private void calcBypassContrib(CatalogUtils cu, Map<String, Double> signal,
+ PceNode currentNode, PceNode nextNode, PceLink pceLink0, PceLink pceLink1) {
+ // If the operational mode of the Degree is not consistent or declared in the topology
+ // Operational mode is set by default to standard opMode for Degree
+ String degree1Mode = setOpMode(currentNode.getOperationalMode(), CatalogConstant.MWMWCORE);
+ // Same for next node which is the second degree of a ROADM node
+ String degree2Mode = setOpMode(nextNode.getOperationalMode(), CatalogConstant.MWMWCORE);
+ // At that time OpenROADM provides only one spec for the ROADM nodes
+ if (!degree1Mode.equals(degree2Mode)) {
+ LOG.warn("Unsupported Hybrid ROADM configuration with Degree1 {} of {} operational mode and Degree2 "
+ + "{} of {} operational mode. Will by default use operational mode of Degree2",
+ currentNode.getNodeId(), degree1Mode, nextNode.getNodeId(), degree2Mode);
}
- LOG.info("In checkOSNR: OSNR of the path is {} dB", osnrDb);
- return ((osnrDb + SYS_MARGIN) > MIN_OSNR_W100G);
+ calcLineDegradation(cu, signal, pceLink0);
+ CatalogNodeType cnt = CatalogConstant.CatalogNodeType.EXPRESS;
+ double pwrOut = cu.getPceRoadmAmpOutputPower(cnt, degree2Mode, pceLink1.getspanLoss(),
+ signal.get("spacing").doubleValue(), pceLink1.getpowerCorrection());
+ // Adds to accumulated impairments the degradation associated with the Express
+ // path of ROADM : Degree1, express link, Degree2
+ Map<String, Double> impairments = cu.getPceRoadmAmpParameters(cnt, degree2Mode,
+ signal.get("pwrIn").doubleValue(), signal.get("calcCd").doubleValue(),
+ signal.get("calcPmd2").doubleValue(), signal.get("calcPdl2").doubleValue(),
+ signal.get("calcOnsrLin").doubleValue(), signal.get("spacing").doubleValue());
+ signal.putAll(
+ Map.of(
+ "calcCd", impairments.get("CD"),
+ "calcPmd2", impairments.get("DGD2"),
+ "calcPdl2", impairments.get("PDL2"),
+ "calcOnsrLin", impairments.get("ONSRLIN"),
+ "pwrOut", Double.valueOf(pwrOut)));
}
+ //TODO these methods might be more indicated in a catalog utils refactoring
- private double getOsnrDb(double osnrLu) {
- return (10 * Math.log10(osnrLu));
+ private void calcLineDegradation(CatalogUtils cu, Map<String, Double> signal, PceLink pceLink) {
+ // Calculate degradation accumulated across incoming Link and add them to
+ // accumulated impairments
+ // This also includes Non Linear Contribution from the path
+ signal.putAll(Map.of(
+ "pwrIn", Double.valueOf(signal.get("pwrOut").doubleValue() - pceLink.getspanLoss()),
+ "calcCd", Double.valueOf(signal.get("calcCd").doubleValue() + pceLink.getcd()),
+ "calcPmd2", Double.valueOf(signal.get("calcPmd2").doubleValue() + pceLink.getpmd2()),
+ "calcOnsrLin", Double.valueOf(
+ signal.get("calcOnsrLin").doubleValue()
+ + cu.calculateNLonsrContribution(
+ signal.get("pwrOut").doubleValue(), pceLink.getLength(), signal.get("spacing").doubleValue()))));
}
- private double getInverseOsnrLinkLu(double linkOsnrDb) {
- // 1 over the link OSNR, in linear units
- double linkOsnrLu = Math.pow(10, (linkOsnrDb / 10.0));
- LOG.debug("In retrieveosnr: the inverse of link osnr is {} (Linear Unit)", linkOsnrLu);
- return (CONST_OSNR / linkOsnrLu);
+ private double getOsnrDbfromOnsrLin(double osnrLu) {
+ return 10 * Math.log10(1 / osnrLu);
}
/**
boolean isFlexGrid = true;
LOG.debug("Processing path {} with length {}", path, path.getLength());
BitSet pceNodeFreqMap;
+ Set<PceNode> pceNodes = new LinkedHashSet<>();
+
for (PceGraphEdge edge : path.getEdgeList()) {
- LOG.debug("Processing source {} ", edge.link().getSourceId());
- if (allPceNodes.containsKey(edge.link().getSourceId())) {
- PceNode pceNode = allPceNodes.get(edge.link().getSourceId());
- LOG.debug("Processing PCE node {}", pceNode);
- if (StringConstants.OPENROADM_DEVICE_VERSION_1_2_1.equals(pceNode.getVersion())) {
- LOG.debug("Node {}: version is {} and slot width granularity is {} -> fixed grid mode",
- pceNode.getNodeId(), pceNode.getVersion(), pceNode.getSlotWidthGranularity());
- isFlexGrid = false;
- }
- if ((pceNode.getSlotWidthGranularity().setScale(0, RoundingMode.CEILING)
- .equals(GridConstant.SLOT_WIDTH_50))
- && (pceNode.getCentralFreqGranularity().setScale(0, RoundingMode.CEILING)
- .equals(GridConstant.SLOT_WIDTH_50))) {
- LOG.debug("Node {}: version is {} with slot width granularity {} and central "
- + "frequency granularity is {} -> fixed grid mode",
- pceNode.getNodeId(), pceNode.getVersion(), pceNode.getSlotWidthGranularity(),
- pceNode.getCentralFreqGranularity());
- isFlexGrid = false;
- }
- pceNodeFreqMap = pceNode.getBitSetData();
- LOG.debug("Pce node bitset {}", pceNodeFreqMap);
- if (pceNodeFreqMap != null) {
- result.and(pceNodeFreqMap);
- LOG.debug("intermediate bitset {}", result);
- }
+ NodeId srcId = edge.link().getSourceId();
+ NodeId dstId = edge.link().getDestId();
+ LOG.debug("Processing {} to {}", srcId.getValue(), dstId.getValue());
+ if (allPceNodes.containsKey(srcId)) {
+ pceNodes.add(allPceNodes.get(srcId));
+ }
+ if (allPceNodes.containsKey(dstId)) {
+ pceNodes.add(allPceNodes.get(dstId));
}
}
+
+ for (PceNode pceNode : pceNodes) {
+ LOG.debug("Processing PCE node {}", pceNode);
+ pceNodeFreqMap = pceNode.getBitSetData();
+ LOG.debug("Pce node bitset {}", pceNodeFreqMap);
+ if (pceNodeFreqMap != null) {
+ result.and(pceNodeFreqMap);
+ LOG.debug("intermediate bitset {}", result);
+ }
+ String pceNodeVersion = pceNode.getVersion();
+ BigDecimal sltWdthGran = pceNode.getSlotWidthGranularity();
+ if (StringConstants.OPENROADM_DEVICE_VERSION_1_2_1.equals(pceNodeVersion)) {
+ LOG.debug("Node {}: version is {} with slot width granularity {} - fixed grid mode",
+ pceNode.getNodeId(), pceNodeVersion, sltWdthGran);
+ isFlexGrid = false;
+ continue;
+ }
+ if (!sltWdthGran.setScale(0, RoundingMode.CEILING).equals(GridConstant.SLOT_WIDTH_50)) {
+ continue;
+ }
+ BigDecimal ctralFreqGran = pceNode.getCentralFreqGranularity();
+ if (!ctralFreqGran.setScale(0, RoundingMode.CEILING).equals(GridConstant.SLOT_WIDTH_50)) {
+ continue;
+ }
+ LOG.debug(
+ "Node {}: version is {} with slot width and central frequency granularities {} {} - fixed grid mode",
+ pceNode.getNodeId(), pceNodeVersion, sltWdthGran, ctralFreqGran);
+ isFlexGrid = false;
+ }
+ if (spectrumConstraint != null) {
+ result.and(spectrumConstraint);
+ }
+
LOG.debug("Bitset result {}", result);
return computeBestSpectrumAssignment(result, spectralWidthSlotNumber, isFlexGrid);
}
* @return a spectrum assignment object which contains begin and stop index. If
* no spectrum assignment found, beginIndex = stopIndex = 0
*/
- private SpectrumAssignment computeBestSpectrumAssignment(BitSet spectrumOccupation, int spectralWidthSlotNumber,
- boolean isFlexGrid) {
+ private SpectrumAssignment computeBestSpectrumAssignment(
+ BitSet spectrumOccupation, int spectralWidthSlotNumber, boolean isFlexGrid) {
SpectrumAssignmentBuilder spectrumAssignmentBldr = new SpectrumAssignmentBuilder()
.setBeginIndex(Uint16.valueOf(0))
.setStopIndex(Uint16.valueOf(0))
.setFlexGrid(isFlexGrid);
BitSet referenceBitSet = new BitSet(spectralWidthSlotNumber);
referenceBitSet.set(0, spectralWidthSlotNumber);
- int nbSteps = isFlexGrid ? spectralWidthSlotNumber : 1;
//higher is the frequency, smallest is the wavelength number
//in operational, the allocation is done through wavelength starting from the smallest
//so we have to loop from the last element of the spectrum occupation
- for (int i = spectrumOccupation.size(); i >= spectralWidthSlotNumber; i -= nbSteps) {
+ for (int i = spectrumOccupation.size(); i >= spectralWidthSlotNumber;
+ i -= isFlexGrid ? spectralWidthSlotNumber : 1) {
if (spectrumOccupation.get(i - spectralWidthSlotNumber, i).equals(referenceBitSet)) {
spectrumAssignmentBldr.setBeginIndex(Uint16.valueOf(i - spectralWidthSlotNumber));
spectrumAssignmentBldr.setStopIndex(Uint16.valueOf(i - 1));
}
return spectrumAssignmentBldr.build();
}
+
+ public Double getTpceCalculatedMargin() {
+ return tpceCalculatedMargin;
+ }
}
Code Review / transportpce.git / blobdiff