Examples with DVSTrafficShapingPolicy com.vmware.vim25.DVSTrafficShapingPolicy used on opensource projects

Example 11 with DVSTrafficShapingPolicy

use of com.vmware.vim25.DVSTrafficShapingPolicy in project cloudstack by apache.

the class HypervisorHostHelperTest method testIsSpecMatchConfigSpecWithMoreDvPortsAndAutoExpandEnabled.

@Test
public void testIsSpecMatchConfigSpecWithMoreDvPortsAndAutoExpandEnabled() throws Exception {
    int currentNumPorts = 512;
    int currentvlanId = 100;
    boolean currentAutoExpand = true;
    DVSTrafficShapingPolicy currentTrafficShapingPolicy = new DVSTrafficShapingPolicy();
    BoolPolicy currentIsEnabled = new BoolPolicy();
    currentIsEnabled.setValue(true);
    LongPolicy currentAvgBw = new LongPolicy();
    currentAvgBw.setValue(200L);
    LongPolicy currentBurstSize = new LongPolicy();
    currentBurstSize.setValue(400L);
    LongPolicy currentPeakBw = new LongPolicy();
    currentPeakBw.setValue(2000L);
    VMwareDVSPortSetting currentVmwareDvsPortSetting = new VMwareDVSPortSetting();
    VmwareDistributedVirtualSwitchVlanIdSpec currentVlanIdSpec = new VmwareDistributedVirtualSwitchVlanIdSpec();
    currentVlanIdSpec.setVlanId(currentvlanId);
    currentVmwareDvsPortSetting.setVlan(currentVlanIdSpec);
    currentTrafficShapingPolicy.setAverageBandwidth(currentAvgBw);
    currentTrafficShapingPolicy.setBurstSize(currentBurstSize);
    currentTrafficShapingPolicy.setPeakBandwidth(currentPeakBw);
    currentTrafficShapingPolicy.setEnabled(currentIsEnabled);
    currentVmwareDvsPortSetting.setInShapingPolicy(currentTrafficShapingPolicy);
    when(currentDvPortgroupInfo.getNumPorts()).thenReturn(currentNumPorts);
    when(currentDvPortgroupInfo.isAutoExpand()).thenReturn(currentAutoExpand);
    when(currentDvPortgroupInfo.getDefaultPortConfig()).thenReturn(currentVmwareDvsPortSetting);
    int newNumPorts = 256;
    int newvlanId = 100;
    boolean newAutoExpand = true;
    DVSTrafficShapingPolicy newTrafficShapingPolicy = new DVSTrafficShapingPolicy();
    BoolPolicy newIsEnabled = new BoolPolicy();
    newIsEnabled.setValue(true);
    LongPolicy newAvgBw = new LongPolicy();
    newAvgBw.setValue(200L);
    LongPolicy newBurstSize = new LongPolicy();
    newBurstSize.setValue(400L);
    LongPolicy newPeakBw = new LongPolicy();
    newPeakBw.setValue(2000L);
    VMwareDVSPortSetting newVmwareDvsPortSetting = new VMwareDVSPortSetting();
    VmwareDistributedVirtualSwitchVlanIdSpec newVlanIdSpec = new VmwareDistributedVirtualSwitchVlanIdSpec();
    newVlanIdSpec.setVlanId(newvlanId);
    newVmwareDvsPortSetting.setVlan(newVlanIdSpec);
    newTrafficShapingPolicy.setAverageBandwidth(newAvgBw);
    newTrafficShapingPolicy.setBurstSize(newBurstSize);
    newTrafficShapingPolicy.setPeakBandwidth(newPeakBw);
    newTrafficShapingPolicy.setEnabled(newIsEnabled);
    newVmwareDvsPortSetting.setInShapingPolicy(newTrafficShapingPolicy);
    when(dvPortgroupConfigSpec.getNumPorts()).thenReturn(newNumPorts);
    when(dvPortgroupConfigSpec.isAutoExpand()).thenReturn(newAutoExpand);
    when(dvPortgroupConfigSpec.getDefaultPortConfig()).thenReturn(newVmwareDvsPortSetting);
    boolean specCompareResult = HypervisorHostHelper.isSpecMatch(currentDvPortgroupInfo, dvPortgroupConfigSpec);
    assertTrue(specCompareResult);
}

Example 12 with DVSTrafficShapingPolicy

use of com.vmware.vim25.DVSTrafficShapingPolicy in project cloudstack by apache.

the class HypervisorHostHelperTest method testIsSpecMatchConfigSpecWithCurrentShapingPolicyDisabled.

@Test
public void testIsSpecMatchConfigSpecWithCurrentShapingPolicyDisabled() throws Exception {
    int currentNumPorts = 512;
    int currentvlanId = 100;
    boolean currentAutoExpand = true;
    DVSTrafficShapingPolicy currentTrafficShapingPolicy = new DVSTrafficShapingPolicy();
    BoolPolicy currentIsEnabled = new BoolPolicy();
    currentIsEnabled.setValue(false);
    VMwareDVSPortSetting currentVmwareDvsPortSetting = new VMwareDVSPortSetting();
    VmwareDistributedVirtualSwitchVlanIdSpec currentVlanIdSpec = new VmwareDistributedVirtualSwitchVlanIdSpec();
    currentVlanIdSpec.setVlanId(currentvlanId);
    currentVmwareDvsPortSetting.setVlan(currentVlanIdSpec);
    currentTrafficShapingPolicy.setEnabled(currentIsEnabled);
    currentVmwareDvsPortSetting.setInShapingPolicy(currentTrafficShapingPolicy);
    when(currentDvPortgroupInfo.getNumPorts()).thenReturn(currentNumPorts);
    when(currentDvPortgroupInfo.isAutoExpand()).thenReturn(currentAutoExpand);
    when(currentDvPortgroupInfo.getDefaultPortConfig()).thenReturn(currentVmwareDvsPortSetting);
    int newNumPorts = 256;
    int newvlanId = 100;
    boolean newAutoExpand = true;
    DVSTrafficShapingPolicy newTrafficShapingPolicy = new DVSTrafficShapingPolicy();
    BoolPolicy newIsEnabled = new BoolPolicy();
    newIsEnabled.setValue(true);
    LongPolicy newAvgBw = new LongPolicy();
    newAvgBw.setValue(200L);
    LongPolicy newBurstSize = new LongPolicy();
    newBurstSize.setValue(400L);
    LongPolicy newPeakBw = new LongPolicy();
    newPeakBw.setValue(2000L);
    VMwareDVSPortSetting newVmwareDvsPortSetting = new VMwareDVSPortSetting();
    VmwareDistributedVirtualSwitchVlanIdSpec newVlanIdSpec = new VmwareDistributedVirtualSwitchVlanIdSpec();
    newVlanIdSpec.setVlanId(newvlanId);
    newVmwareDvsPortSetting.setVlan(newVlanIdSpec);
    newTrafficShapingPolicy.setAverageBandwidth(newAvgBw);
    newTrafficShapingPolicy.setBurstSize(newBurstSize);
    newTrafficShapingPolicy.setPeakBandwidth(newPeakBw);
    newTrafficShapingPolicy.setEnabled(newIsEnabled);
    newVmwareDvsPortSetting.setInShapingPolicy(newTrafficShapingPolicy);
    when(dvPortgroupConfigSpec.getNumPorts()).thenReturn(newNumPorts);
    when(dvPortgroupConfigSpec.isAutoExpand()).thenReturn(newAutoExpand);
    when(dvPortgroupConfigSpec.getDefaultPortConfig()).thenReturn(newVmwareDvsPortSetting);
    boolean specCompareResult = HypervisorHostHelper.isSpecMatch(currentDvPortgroupInfo, dvPortgroupConfigSpec);
    assertFalse(specCompareResult);
}

Example 13 with DVSTrafficShapingPolicy

use of com.vmware.vim25.DVSTrafficShapingPolicy in project cloudstack by apache.

the class HypervisorHostHelper method isSpecMatch.

public static boolean isSpecMatch(DVPortgroupConfigInfo currentDvPortgroupInfo, DVPortgroupConfigSpec newDvPortGroupSpec) {
    String dvPortGroupName = newDvPortGroupSpec.getName();
    s_logger.debug("Checking if configuration of dvPortGroup [" + dvPortGroupName + "] has changed.");
    boolean specMatches = true;
    DVSTrafficShapingPolicy currentTrafficShapingPolicy;
    currentTrafficShapingPolicy = currentDvPortgroupInfo.getDefaultPortConfig().getInShapingPolicy();
    assert (currentTrafficShapingPolicy != null);
    LongPolicy oldAverageBandwidthPolicy = currentTrafficShapingPolicy.getAverageBandwidth();
    LongPolicy oldBurstSizePolicy = currentTrafficShapingPolicy.getBurstSize();
    LongPolicy oldPeakBandwidthPolicy = currentTrafficShapingPolicy.getPeakBandwidth();
    BoolPolicy oldIsEnabledPolicy = currentTrafficShapingPolicy.getEnabled();
    Long oldAverageBandwidth = null;
    Long oldBurstSize = null;
    Long oldPeakBandwidth = null;
    Boolean oldIsEnabled = null;
    if (oldAverageBandwidthPolicy != null) {
        oldAverageBandwidth = oldAverageBandwidthPolicy.getValue();
    }
    if (oldBurstSizePolicy != null) {
        oldBurstSize = oldBurstSizePolicy.getValue();
    }
    if (oldPeakBandwidthPolicy != null) {
        oldPeakBandwidth = oldPeakBandwidthPolicy.getValue();
    }
    if (oldIsEnabledPolicy != null) {
        oldIsEnabled = oldIsEnabledPolicy.isValue();
    }
    DVSTrafficShapingPolicy newTrafficShapingPolicyInbound = newDvPortGroupSpec.getDefaultPortConfig().getInShapingPolicy();
    LongPolicy newAverageBandwidthPolicy = newTrafficShapingPolicyInbound.getAverageBandwidth();
    LongPolicy newBurstSizePolicy = newTrafficShapingPolicyInbound.getBurstSize();
    LongPolicy newPeakBandwidthPolicy = newTrafficShapingPolicyInbound.getPeakBandwidth();
    BoolPolicy newIsEnabledPolicy = newTrafficShapingPolicyInbound.getEnabled();
    Long newAverageBandwidth = null;
    Long newBurstSize = null;
    Long newPeakBandwidth = null;
    Boolean newIsEnabled = null;
    if (newAverageBandwidthPolicy != null) {
        newAverageBandwidth = newAverageBandwidthPolicy.getValue();
    }
    if (newBurstSizePolicy != null) {
        newBurstSize = newBurstSizePolicy.getValue();
    }
    if (newPeakBandwidthPolicy != null) {
        newPeakBandwidth = newPeakBandwidthPolicy.getValue();
    }
    if (newIsEnabledPolicy != null) {
        newIsEnabled = newIsEnabledPolicy.isValue();
    }
    if (!oldIsEnabled.equals(newIsEnabled)) {
        s_logger.info("Detected change in state of shaping policy (enabled/disabled) [" + newIsEnabled + "]");
        specMatches = false;
    }
    if (oldIsEnabled || newIsEnabled) {
        if (oldAverageBandwidth != null && !oldAverageBandwidth.equals(newAverageBandwidth)) {
            s_logger.info("Average bandwidth setting in new shaping policy doesn't match the existing setting.");
            specMatches = false;
        } else if (oldBurstSize != null && !oldBurstSize.equals(newBurstSize)) {
            s_logger.info("Burst size setting in new shaping policy doesn't match the existing setting.");
            specMatches = false;
        } else if (oldPeakBandwidth != null && !oldPeakBandwidth.equals(newPeakBandwidth)) {
            s_logger.info("Peak bandwidth setting in new shaping policy doesn't match the existing setting.");
            specMatches = false;
        }
    }
    boolean oldAutoExpandSetting = currentDvPortgroupInfo.isAutoExpand();
    boolean autoExpandEnabled = newDvPortGroupSpec.isAutoExpand();
    if (oldAutoExpandSetting != autoExpandEnabled) {
        specMatches = false;
    }
    if (!autoExpandEnabled) {
        // Allow update of number of dvports per dvPortGroup is auto expand is not enabled.
        int oldNumPorts = currentDvPortgroupInfo.getNumPorts();
        int newNumPorts = newDvPortGroupSpec.getNumPorts();
        if (oldNumPorts < newNumPorts) {
            s_logger.info("Need to update the number of dvports for dvPortGroup :[" + dvPortGroupName + "] from existing number of dvports " + oldNumPorts + " to " + newNumPorts);
            specMatches = false;
        } else if (oldNumPorts > newNumPorts) {
            s_logger.warn("Detected that new number of dvports [" + newNumPorts + "] in dvPortGroup [" + dvPortGroupName + "] is less than existing number of dvports [" + oldNumPorts + "]. Attempt to update this dvPortGroup may fail!");
            specMatches = false;
        }
    }
    VmwareDistributedVirtualSwitchVlanIdSpec oldVlanSpec = (VmwareDistributedVirtualSwitchVlanIdSpec) ((VMwareDVSPortSetting) currentDvPortgroupInfo.getDefaultPortConfig()).getVlan();
    VmwareDistributedVirtualSwitchVlanIdSpec newVlanSpec = (VmwareDistributedVirtualSwitchVlanIdSpec) ((VMwareDVSPortSetting) newDvPortGroupSpec.getDefaultPortConfig()).getVlan();
    int oldVlanId = oldVlanSpec.getVlanId();
    int newVlanId = newVlanSpec.getVlanId();
    if (oldVlanId != newVlanId) {
        s_logger.info("Detected that new VLAN [" + newVlanId + "] of dvPortGroup [" + dvPortGroupName + "] is different from current VLAN [" + oldVlanId + "]");
        specMatches = false;
    }
    return specMatches;
}

Example 14 with DVSTrafficShapingPolicy

use of com.vmware.vim25.DVSTrafficShapingPolicy in project cloudstack by apache.

the class HypervisorHostHelper method prepareNetwork.

/**
     * @param ethPortProfileName
     * @param namePrefix
     * @param hostMo
     * @param vlanId
     * @param networkRateMbps
     * @param networkRateMulticastMbps
     * @param timeOutMs
     * @param vSwitchType
     * @param numPorts
     * @return
     * @throws Exception
     */
public static Pair<ManagedObjectReference, String> prepareNetwork(String physicalNetwork, String namePrefix, HostMO hostMo, String vlanId, String secondaryvlanId, Integer networkRateMbps, Integer networkRateMulticastMbps, long timeOutMs, VirtualSwitchType vSwitchType, int numPorts, String gateway, boolean configureVServiceInNexus, BroadcastDomainType broadcastDomainType, Map<String, String> vsmCredentials) throws Exception {
    ManagedObjectReference morNetwork = null;
    VmwareContext context = hostMo.getContext();
    ManagedObjectReference dcMor = hostMo.getHyperHostDatacenter();
    DatacenterMO dataCenterMo = new DatacenterMO(context, dcMor);
    DistributedVirtualSwitchMO dvSwitchMo = null;
    ManagedObjectReference morEthernetPortProfile = null;
    String ethPortProfileName = null;
    ManagedObjectReference morDvSwitch = null;
    String dvSwitchName = null;
    boolean bWaitPortGroupReady = false;
    boolean createGCTag = false;
    String vcApiVersion;
    String minVcApiVersionSupportingAutoExpand;
    boolean autoExpandSupported;
    String networkName;
    Integer vid = null;
    // secondary pvlan id
    Integer spvlanid = null;
    /** This is the list of BroadcastDomainTypes we can actually
         * prepare networks for in this function.
         */
    BroadcastDomainType[] supportedBroadcastTypes = new BroadcastDomainType[] { BroadcastDomainType.Lswitch, BroadcastDomainType.LinkLocal, BroadcastDomainType.Native, BroadcastDomainType.Pvlan, BroadcastDomainType.Storage, BroadcastDomainType.UnDecided, BroadcastDomainType.Vlan, BroadcastDomainType.Vsp };
    if (!Arrays.asList(supportedBroadcastTypes).contains(broadcastDomainType)) {
        throw new InvalidParameterException("BroadcastDomainType " + broadcastDomainType + " it not supported on a VMWare hypervisor at this time.");
    }
    if (broadcastDomainType == BroadcastDomainType.Lswitch) {
        if (vSwitchType == VirtualSwitchType.NexusDistributedVirtualSwitch) {
            throw new InvalidParameterException("Nexus Distributed Virtualswitch is not supported with BroadcastDomainType " + broadcastDomainType);
        }
        /**
             * Nicira NVP requires all vms to be connected to a single port-group.
             * A unique vlan needs to be set per port. This vlan is specific to
             * this implementation and has no reference to other vlans in CS
             */
        // FIXME Should be set via a configuration item in CS
        networkName = "br-int";
        // No doubt about this, depending on vid=null to avoid lots of code below
        vid = null;
    } else {
        networkName = composeCloudNetworkName(namePrefix, vlanId, secondaryvlanId, networkRateMbps, physicalNetwork);
        if (vlanId != null && !UNTAGGED_VLAN_NAME.equalsIgnoreCase(vlanId)) {
            createGCTag = true;
            vid = Integer.parseInt(vlanId);
        }
        if (secondaryvlanId != null) {
            spvlanid = Integer.parseInt(secondaryvlanId);
        }
    }
    if (vSwitchType == VirtualSwitchType.VMwareDistributedVirtualSwitch) {
        DVSTrafficShapingPolicy shapingPolicy;
        DVSSecurityPolicy secPolicy;
        vcApiVersion = getVcenterApiVersion(context);
        minVcApiVersionSupportingAutoExpand = "5.0";
        autoExpandSupported = isFeatureSupportedInVcenterApiVersion(vcApiVersion, minVcApiVersionSupportingAutoExpand);
        dvSwitchName = physicalNetwork;
        // and switch types.
        if (dvSwitchName == null) {
            s_logger.warn("Detected null dvSwitch. Defaulting to dvSwitch0");
            dvSwitchName = "dvSwitch0";
        }
        morDvSwitch = dataCenterMo.getDvSwitchMor(dvSwitchName);
        if (morDvSwitch == null) {
            String msg = "Unable to find distributed vSwitch " + dvSwitchName;
            s_logger.error(msg);
            throw new Exception(msg);
        } else {
            s_logger.debug("Found distributed vSwitch " + dvSwitchName);
        }
        if (broadcastDomainType == BroadcastDomainType.Lswitch) {
            if (!dataCenterMo.hasDvPortGroup(networkName)) {
                throw new InvalidParameterException("NVP integration port-group " + networkName + " does not exist on the DVS " + dvSwitchName);
            }
            bWaitPortGroupReady = false;
        } else {
            dvSwitchMo = new DistributedVirtualSwitchMO(context, morDvSwitch);
            shapingPolicy = getDVSShapingPolicy(networkRateMbps);
            secPolicy = createDVSSecurityPolicy();
            // type isolated.
            if (vid != null && spvlanid != null) {
                setupPVlanPair(dvSwitchMo, morDvSwitch, vid, spvlanid);
            }
            VMwareDVSPortgroupPolicy portGroupPolicy = null;
            if (broadcastDomainType == BroadcastDomainType.Vsp) {
                //If the broadcastDomainType is Vsp, then set the VMwareDVSPortgroupPolicy
                portGroupPolicy = new VMwareDVSPortgroupPolicy();
                portGroupPolicy.setVlanOverrideAllowed(true);
                portGroupPolicy.setBlockOverrideAllowed(true);
                portGroupPolicy.setPortConfigResetAtDisconnect(true);
            }
            // Next, create the port group. For this, we need to create a VLAN spec.
            createPortGroup(physicalNetwork, networkName, vid, spvlanid, dataCenterMo, shapingPolicy, secPolicy, portGroupPolicy, dvSwitchMo, numPorts, autoExpandSupported);
            bWaitPortGroupReady = true;
        }
    } else if (vSwitchType == VirtualSwitchType.NexusDistributedVirtualSwitch) {
        ethPortProfileName = physicalNetwork;
        // and switch types.
        if (ethPortProfileName == null) {
            s_logger.warn("Detected null ethrenet port profile. Defaulting to epp0.");
            ethPortProfileName = "epp0";
        }
        morEthernetPortProfile = dataCenterMo.getDvPortGroupMor(ethPortProfileName);
        if (morEthernetPortProfile == null) {
            String msg = "Unable to find Ethernet port profile " + ethPortProfileName;
            s_logger.error(msg);
            throw new Exception(msg);
        } else {
            s_logger.info("Found Ethernet port profile " + ethPortProfileName);
        }
        long averageBandwidth = 0L;
        if (networkRateMbps != null && networkRateMbps.intValue() > 0) {
            averageBandwidth = networkRateMbps.intValue() * 1024L * 1024L;
        }
        // We chose 50% higher allocation than average bandwidth.
        // TODO(sateesh): Optionally let user specify the peak coefficient
        long peakBandwidth = (long) (averageBandwidth * 1.5);
        // TODO(sateesh): Optionally let user specify the burst coefficient
        long burstSize = 5 * averageBandwidth / 8;
        if (vsmCredentials != null) {
            s_logger.info("Stocking credentials of Nexus VSM");
            context.registerStockObject("vsmcredentials", vsmCredentials);
        }
        if (!dataCenterMo.hasDvPortGroup(networkName)) {
            s_logger.info("Port profile " + networkName + " not found.");
            createPortProfile(context, physicalNetwork, networkName, vid, networkRateMbps, peakBandwidth, burstSize, gateway, configureVServiceInNexus);
            bWaitPortGroupReady = true;
        } else {
            s_logger.info("Port profile " + networkName + " found.");
            updatePortProfile(context, physicalNetwork, networkName, vid, networkRateMbps, peakBandwidth, burstSize);
        }
    }
    // Wait for dvPortGroup on vCenter
    if (bWaitPortGroupReady)
        morNetwork = waitForDvPortGroupReady(dataCenterMo, networkName, timeOutMs);
    else
        morNetwork = dataCenterMo.getDvPortGroupMor(networkName);
    if (morNetwork == null) {
        String msg = "Failed to create guest network " + networkName;
        s_logger.error(msg);
        throw new Exception(msg);
    }
    if (createGCTag) {
        NetworkMO networkMo = new NetworkMO(hostMo.getContext(), morNetwork);
        networkMo.setCustomFieldValue(CustomFieldConstants.CLOUD_GC_DVP, "true");
        s_logger.debug("Added custom field : " + CustomFieldConstants.CLOUD_GC_DVP);
    }
    return new Pair<ManagedObjectReference, String>(morNetwork, networkName);
}

Example 15 with DVSTrafficShapingPolicy

use of com.vmware.vim25.DVSTrafficShapingPolicy in project cloudstack by apache.

the class HypervisorHostHelper method createPortGroup.

private static void createPortGroup(String physicalNetwork, String networkName, Integer vid, Integer spvlanid, DatacenterMO dataCenterMo, DVSTrafficShapingPolicy shapingPolicy, DVSSecurityPolicy secPolicy, VMwareDVSPortgroupPolicy portGroupPolicy, DistributedVirtualSwitchMO dvSwitchMo, int numPorts, boolean autoExpandSupported) throws Exception {
    VmwareDistributedVirtualSwitchVlanSpec vlanSpec = null;
    VmwareDistributedVirtualSwitchPvlanSpec pvlanSpec = null;
    VMwareDVSPortSetting dvsPortSetting = null;
    DVPortgroupConfigSpec newDvPortGroupSpec;
    // NOTE - VmwareDistributedVirtualSwitchPvlanSpec extends VmwareDistributedVirtualSwitchVlanSpec.
    if (vid == null || spvlanid == null) {
        vlanSpec = createDVPortVlanIdSpec(vid);
        dvsPortSetting = createVmwareDVPortSettingSpec(shapingPolicy, secPolicy, vlanSpec);
    } else if (spvlanid != null) {
        // Create a pvlan spec. The pvlan spec is different from the pvlan config spec
        // that we created earlier. The pvlan config spec is used to configure the switch
        // with a <primary vlanId, secondary vlanId> tuple. The pvlan spec is used
        // to configure a port group (i.e., a network) with a secondary vlan id. We don't
        // need to mention more than the secondary vlan id because one secondary vlan id
        // can be associated with only one primary vlan id. Give vCenter the secondary vlan id,
        // and it will find out the associated primary vlan id and do the rest of the
        // port group configuration.
        pvlanSpec = createDVPortPvlanIdSpec(spvlanid);
        dvsPortSetting = createVmwareDVPortSettingSpec(shapingPolicy, secPolicy, pvlanSpec);
    }
    newDvPortGroupSpec = createDvPortGroupSpec(networkName, dvsPortSetting, numPorts, autoExpandSupported);
    if (portGroupPolicy != null) {
        newDvPortGroupSpec.setPolicy(portGroupPolicy);
    }
    if (!dataCenterMo.hasDvPortGroup(networkName)) {
        s_logger.info("Distributed Virtual Port group " + networkName + " not found.");
        // TODO(sateesh): Handle Exceptions
        try {
            dvSwitchMo.createDVPortGroup(newDvPortGroupSpec);
        } catch (Exception e) {
            String msg = "Failed to create distributed virtual port group " + networkName + " on dvSwitch " + physicalNetwork;
            msg += ". " + VmwareHelper.getExceptionMessage(e);
            throw new Exception(msg);
        }
    } else {
        s_logger.info("Found Distributed Virtual Port group " + networkName);
        DVPortgroupConfigInfo currentDvPortgroupInfo = dataCenterMo.getDvPortGroupSpec(networkName);
        if (!isSpecMatch(currentDvPortgroupInfo, newDvPortGroupSpec)) {
            s_logger.info("Updating Distributed Virtual Port group " + networkName);
            newDvPortGroupSpec.setDefaultPortConfig(dvsPortSetting);
            newDvPortGroupSpec.setConfigVersion(currentDvPortgroupInfo.getConfigVersion());
            ManagedObjectReference morDvPortGroup = dataCenterMo.getDvPortGroupMor(networkName);
            try {
                dvSwitchMo.updateDvPortGroup(morDvPortGroup, newDvPortGroupSpec);
            } catch (Exception e) {
                String msg = "Failed to update distributed virtual port group " + networkName + " on dvSwitch " + physicalNetwork;
                msg += ". " + VmwareHelper.getExceptionMessage(e);
                throw new Exception(msg);
            }
        }
    }
}