problem
Please help me figure out the reason for the virtual machine migration error.
The VM is started and it's connected to L2 network. When I try to migrate the VM to the another host of the pool I get an error "Unable to support this type of network broadcast domain: null". The same situation with some other VMs wich are connected to a VPC network.
At the same time, some other VMs of the same pool connected to other L2 networks migrate without problems.
VM configuration:
{
"count": 1,
"virtualmachine": [
{
"account": "test",
"affinitygroup": [],
"arch": "x86_64",
"cpunumber": 8,
"cpuspeed": 1000,
"cpuused": "0.43%",
"created": "2026-07-16T10:41:24+0300",
"deleteprotection": false,
"details": {
"Message.ReservedCapacityFreed.Flag": "false",
"cpuNumber": "8",
"cpuOvercommitRatio": "4",
"hypervisortoolsversion": "xenserver56",
"memory": "12288",
"memoryOvercommitRatio": "2",
"platform": "device-model:qemu-upstream-compat;apic:true;viridian:true;timeoffset:0;cores-per-socket:1;pae:true;acpi:1;hpet:true;secureboot:false;nx:true",
"rootdisksize": "40"
},
"diskioread": 0,
"diskiowrite": 0,
"diskkbsread": 66,
"diskkbswrite": 485,
"diskofferingid": "57bf8694-722b-4b72-939d-f8367aeb95a3",
"diskofferingname": "test",
"displayname": "test-vm",
"displayvm": true,
"domain": "test",
"domainid": "9cfeffa6-7064-4f6d-9e87-71da84db99b0",
"domainpath": "ROOT/test",
"guestosid": "3610579a-4224-11ec-8697-62c4e64309fe",
"haenable": true,
"hasannotations": false,
"hostcontrolstate": "Enabled",
"hostid": "c7722e69-1320-44f7-8dd9-da7f64a50fa2",
"hostname": "xcp-test",
"hypervisor": "XenServer",
"id": "943abbd3-0fe1-4a8d-9103-b720df48c31b",
"instancename": "i-222-2222-VM",
"isdynamicallyscalable": false,
"lastupdated": "2026-07-22T11:25:37+0300",
"memory": 12288,
"memoryintfreekbs": 6191235,
"memorykbs": 12582912,
"memorytargetkbs": 0,
"name": "test",
"networkkbsread": 24,
"networkkbswrite": 0,
"nic": [
{
"deviceid": "0",
"extradhcpoption": [],
"id": "413f962f-8c50-4960-be13-06f386740d39",
"isdefault": true,
"macaddress": "02:07:07:72:00:15",
"networkid": "f004cc1c-dbc7-46e2-b68f-f94486f79580",
"networkname": "test-net",
"secondaryip": [],
"traffictype": "Guest",
"type": "L2"
}
],
"osdisplayname": "Other Linux (64-bit)",
"ostypeid": "3610579a-4224-11ec-8697-62c4e64309fe",
"passwordenabled": false,
"pooltype": "PreSetup",
"receivedbytes": 0,
"rootdeviceid": 0,
"rootdevicetype": "ROOT",
"securitygroup": [],
"sentbytes": 0,
"serviceofferingid": "d7b6331a-6647-4194-9700-bac19cc6989e",
"serviceofferingname": "test",
"state": "Running",
"tags": [],
"templatedisplaytext": "test",
"templateformat": "ISO",
"templateid": "86f7dd7b-300e-45bd-8309-c79598dc6cfd",
"templatename": "Test",
"templatetype": "USER",
"userid": "7aac7740-5899-4af0-a1eb-f2fd1e1d8dc3",
"username": "test",
"zoneid": "9505445a-7164-4675-876d-1a2fee1f7e46",
"zonename": "test-zone"
}
]
}
Network configuration:
{
"count": 1,
"network": [
{
"account": "test",
"acltype": "Account",
"broadcastdomaintype": "Vlan",
"broadcasturi": "vlan://1234",
"canusefordeploy": true,
"created": "2026-05-14T14:22:10+0300",
"details": {
"hideIpAddressUsage": "false"
},
"displaynetwork": true,
"displaytext": "test-net",
"dns1": "1.1.1.1",
"dns2": "8.8.8.8",
"domain": "test",
"domainid": "9cfeffa6-7064-4f6d-9e87-71da84db99b0",
"domainpath": "ROOT/test",
"hasannotations": false,
"id": "f004cc1c-dbc7-46e2-b68f-f94486f79580",
"ispersistent": false,
"issystem": false,
"name": "test-net",
"networkofferingavailability": "Optional",
"networkofferingconservemode": true,
"networkofferingdisplaytext": "test-net L2",
"networkofferingid": "55634a31-3d5f-45ad-84dc-093ff55db8b9",
"networkofferingname": "test-net L2",
"physicalnetworkid": "636227a2-081e-4494-bd93-6adeea0e768a",
"privatemtu": 1500,
"publicmtu": 1500,
"receivedbytes": 0,
"redundantrouter": false,
"related": "f004cc1c-dbc7-46e2-b68f-f94486f79580",
"restartrequired": false,
"sentbytes": 0,
"service": [],
"specifyipranges": false,
"specifyvlan": true,
"state": "Setup",
"strechedl2subnet": false,
"supportsvmautoscaling": false,
"tags": [],
"traffictype": "Guest",
"type": "L2",
"vlan": "1234",
"zoneid": "9505445a-7164-4675-876d-1a2fee1f7e46",
"zonename": "test-zone"
}
]
}
Here is the ACS's log:
2026-07-24 12:39:25,033 DEBUG [c.c.a.t.Request] (Work-Job-Executor-133:[ctx-71b90daf, job-155111/job-155112, ctx-dbc25316]) (logid:cf26e16a) Seq 77361-801359258695256835: Executing: { Cmd , MgmtId: 108597816265214, via: 77361(xcp-test), Ver: v1, Flags: 100111, [{"com.cloud.agent.api.PrepareForMigrationCommand":{"vm":{"id":"9679","name":"i-222-2222-VM","bootloader":"PyGrub","state":"Running","type":"User","cpus":"8","minSpeed":"700","maxSpeed":"1000","minRam":"(6.00 GB) 6442450944","maxRam":"(12.00 GB) 12884901888","arch":"x86_64","os":"Other Linux (64-bit)","platformEmulator":"Other install media","bootArgs":"","enableHA":"true","limitCpuUse":"false","enableDynamicallyScaleVm":"false","details":{"cpuNumber":"8","memory":"12288","memoryOvercommitRatio":"2","Message.ReservedCapacityFreed.Flag":"false","hypervisortoolsversion":"xenserver56","cpuOvercommitRatio":"4","rootdisksize":"40","platform":"device-model:qemu-upstream-compat;apic:true;viridian:true;timeoffset:0;cores-per-socket:1;pae:true;acpi:1;hpet:true;secureboot:false;nx:true"},"uuid":"943abbd3-0fe1-4a8d-9103-b720df48c31b","enterHardwareSetup":"false","disks":[{"data":{"org.apache.cloudstack.storage.to.VolumeObjectTO":{"uuid":"7db3b617-de76-47c4-806f-4f480dec55af","volumeType":"ROOT","dataStore":{"org.apache.cloudstack.storage.to.PrimaryDataStoreTO":{"uuid":"test","name":"test","id":"84","poolType":"PreSetup","host":"localhost","path":"/test","port":"0","url":"PreSetup://localhost/test/?ROLE=Primary&STOREUUID=test","isManaged":"false"}},"name":"ROOT-2222","size":"(40.00 GB) 42949672960","path":"22472c93-e335-4136-ad67-d7bc5eb18434","volumeId":"11120","vmName":"i-222-2222-VM","accountId":"222","format":"VHD","provisioningType":"THIN","poolId":"84","id":"11120","deviceId":"0","bytesReadRate":"(0 bytes) 0","bytesWriteRate":"(0 bytes) 0","iopsReadRate":"(0 bytes) 0","iopsWriteRate":"(0 bytes) 0","cacheMode":"NONE","hypervisorType":"XenServer","directDownload":"false","deployAsIs":"false","checkpointPaths":[],"checkpointImageStoreUrls":[],"followRedirects":"true"}},"diskSeq":"0","path":"22472c93-e335-4136-ad67-d7bc5eb18434","type":"ROOT","details":{"storageHost":"localhost","managed":"false","storagePort":"0","protocoltype":"PreSetup","storage.pool.disk.wait":"60","volumeSize":"(40.00 GB) 42949672960"}},{"data":{"org.apache.cloudstack.storage.to.TemplateObjectTO":{"id":"0","format":"ISO","accountId":"0","hvm":"false","bootable":"false","directDownload":"false","deployAsIs":"false","followRedirects":"false"}},"diskSeq":"3","type":"ISO"}],"nics":[{"deviceId":"0","networkRateMbps":"10000","defaultNic":"true","pxeDisable":"false","nicUuid":"413f962f-8c50-4960-be13-06f386740d39","details":{"PromiscuousMode":"false","ForgedTransmits":"true","MacLearning":"false","MacAddressChanges":"true"},"dpdkEnabled":"false","networkId":"1906","networkSegmentName":"D124-A229-Z7-S1906","uuid":"f004cc1c-dbc7-46e2-b68f-f94486f79580","mac":"02:07:07:72:00:15","dns1":"1.1.1.1","dns2":"8.8.8.8","broadcastType":"Vlan","type":"Guest","securityGroupEnabled":"false","name":"test"}],"vcpuMaxLimit":"32","configDriveLabel":"config-2","configDriveLocation":"SECONDARY","guestOsDetails":{},"extraConfig":{},"networkIdToNetworkNameMap":{"1906":"D124-A229-Z7-S1906"}},"rollback":"false","wait":"0","bypassHostMaintenance":"false"}}] }
2026-07-24 12:39:25,043 WARN [c.c.h.x.r.w.x.CitrixPrepareForMigrationCommandWrapper] (DirectAgent-188:[ctx-df8d7551]) (logid:cf26e16a) Catch Exception com.cloud.utils.exception.CloudRuntimeException prepare for migration failed due to com.cloud.utils.exception.CloudRuntimeException: Unable to support this type of network broadcast domain: null com.cloud.utils.exception.CloudRuntimeException: Unable to support this type of network broadcast domain: null
at com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.getNetwork(CitrixResourceBase.java:2894)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixPrepareForMigrationCommandWrapper.execute(CitrixPrepareForMigrationCommandWrapper.java:60)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixPrepareForMigrationCommandWrapper.execute(CitrixPrepareForMigrationCommandWrapper.java:35)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixRequestWrapper.execute(CitrixRequestWrapper.java:122)
at com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.executeRequest(CitrixResourceBase.java:1779)
at com.cloud.agent.manager.DirectAgentAttache$Task.runInContext(DirectAgentAttache.java:306)
at org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:49)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
at org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:46)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:840)
2026-07-24 12:39:25,043 DEBUG [c.c.a.m.D.Task] (DirectAgent-188:[ctx-df8d7551]) (logid:cf26e16a) Seq 77354-801359258695256835: Response Received:
2026-07-24 12:39:25,044 DEBUG [c.c.a.t.Request] (DirectAgent-188:[ctx-df8d7551]) (logid:cf26e16a) Seq 77361-801359258695256835: Processing: { Ans: , MgmtId: 108597816265214, via: 77361(xcp-test
l), Ver: v1, Flags: 110, [{"com.cloud.agent.api.PrepareForMigrationAnswer":{"dpdkInterfaceMapping":{},"result":"false","details":"Exception: com.cloud.utils.exception.CloudRuntimeException
Message: Unable to support this type of network broadcast domain: null
Stack: com.cloud.utils.exception.CloudRuntimeException: Unable to support this type of network broadcast domain: null
at com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.getNetwork(CitrixResourceBase.java:2894)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixPrepareForMigrationCommandWrapper.execute(CitrixPrepareForMigrationCommandWrapper.java:60)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixPrepareForMigrationCommandWrapper.execute(CitrixPrepareForMigrationCommandWrapper.java:35)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixRequestWrapper.execute(CitrixRequestWrapper.java:122)
at com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.executeRequest(CitrixResourceBase.java:1779)
at com.cloud.agent.manager.DirectAgentAttache$Task.runInContext(DirectAgentAttache.java:306)
at org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:49)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
at org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:46)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:840)
","wait":"0","bypassHostMaintenance":"false"}}] }
2026-07-24 12:39:25,044 DEBUG [c.c.a.m.ClusteredDirectAgentAttache] (DirectAgent-188:[ctx-df8d7551]) (logid:cf26e16a) Seq 77354-801359258695256835: No more commands found
2026-07-24 12:39:25,044 DEBUG [c.c.a.t.Request] (Work-Job-Executor-133:[ctx-71b90daf, job-155111/job-155112, ctx-dbc25316]) (logid:cf26e16a) Seq 77361-801359258695256835: Received: { Ans: , MgmtId: 1085978162652
14, via: 77361(xcp-test), Ver: v1, Flags: 110, { PrepareForMigrationAnswer } }
2026-07-24 12:39:25,044 ERROR [c.c.v.ClusteredVirtualMachineManagerImpl] (Work-Job-Executor-133:[ctx-71b90daf, job-155111/job-155112, ctx-dbc25316]) (logid:cf26e16a) Failed to prepare destination host 77361 for m
igration of VM i-222-2222-VM : Exception: com.cloud.utils.exception.CloudRuntimeException
Message: Unable to support this type of network broadcast domain: null
Stack: com.cloud.utils.exception.CloudRuntimeException: Unable to support this type of network broadcast domain: null
at com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.getNetwork(CitrixResourceBase.java:2894)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixPrepareForMigrationCommandWrapper.execute(CitrixPrepareForMigrationCommandWrapper.java:60)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixPrepareForMigrationCommandWrapper.execute(CitrixPrepareForMigrationCommandWrapper.java:35)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixRequestWrapper.execute(CitrixRequestWrapper.java:122)
at com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.executeRequest(CitrixResourceBase.java:1779)
at com.cloud.agent.manager.DirectAgentAttache$Task.runInContext(DirectAgentAttache.java:306)
at org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:49)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
at org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:46)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:840)
2026-07-24 12:39:25,045 DEBUG [c.c.v.UserVmManagerImpl] (Work-Job-Executor-133:[ctx-71b90daf, job-155111/job-155112, ctx-dbc25316]) (logid:cf26e16a) Skipping PVLAN setup on host 77353 for NIC NicProfile {"broadca
stUri":null,"deviceId":0,"iPv4Address":null,"id":14523,"reservationId":"a0591da5-b287-4749-a8fb-4aab81035be3","uuid":"413f962f-8c50-4960-be13-06f386740d39","vmId":9679} because broadcast URI is null
2026-07-24 12:39:25,056 ERROR [c.c.v.VmWorkJobHandlerProxy] (Work-Job-Executor-133:[ctx-71b90daf, job-155111/job-155112, ctx-dbc25316]) (logid:cf26e16a) Invocation exception, caused by: com.cloud.exception.AgentU
navailableException: Resource [Host:77361] is unreachable: Host 77361: Unable to prepare for migration due to Exception: com.cloud.utils.exception.CloudRuntimeException
Message: Unable to support this type of network broadcast domain: null
Stack: com.cloud.utils.exception.CloudRuntimeException: Unable to support this type of network broadcast domain: null
at com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.getNetwork(CitrixResourceBase.java:2894)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixPrepareForMigrationCommandWrapper.execute(CitrixPrepareForMigrationCommandWrapper.java:60)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixPrepareForMigrationCommandWrapper.execute(CitrixPrepareForMigrationCommandWrapper.java:35)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixRequestWrapper.execute(CitrixRequestWrapper.java:122)
at com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.executeRequest(CitrixResourceBase.java:1779)
at com.cloud.agent.manager.DirectAgentAttache$Task.runInContext(DirectAgentAttache.java:306)
at org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:49)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
at org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:46)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:840)
2026-07-24 12:39:25,056 INFO [c.c.v.VmWorkJobHandlerProxy] (Work-Job-Executor-133:[ctx-71b90daf, job-155111/job-155112, ctx-dbc25316]) (logid:cf26e16a) Rethrow exception com.cloud.exception.AgentUnavailableExcep
tion: Resource [Host:77361] is unreachable: Host 77361: Unable to prepare for migration due to Exception: com.cloud.utils.exception.CloudRuntimeException
Message: Unable to support this type of network broadcast domain: null
Stack: com.cloud.utils.exception.CloudRuntimeException: Unable to support this type of network broadcast domain: null
at com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.getNetwork(CitrixResourceBase.java:2894)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixPrepareForMigrationCommandWrapper.execute(CitrixPrepareForMigrationCommandWrapper.java:60)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixPrepareForMigrationCommandWrapper.execute(CitrixPrepareForMigrationCommandWrapper.java:35)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixRequestWrapper.execute(CitrixRequestWrapper.java:122)
at com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.executeRequest(CitrixResourceBase.java:1779)
at com.cloud.agent.manager.DirectAgentAttache$Task.runInContext(DirectAgentAttache.java:306)
at org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:49)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
at org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:46)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:840)
versions
CloudStack 4.22.1.0+XCP-NG 8.2.1
The steps to reproduce the bug
- Create L2-network with some vlan-id;
- Connect a VM to L2-network;
- Statr the VM
- Migrate the VM to another pool's host
What to do about it?
No response
problem
Please help me figure out the reason for the virtual machine migration error.
The VM is started and it's connected to L2 network. When I try to migrate the VM to the another host of the pool I get an error "Unable to support this type of network broadcast domain: null". The same situation with some other VMs wich are connected to a VPC network.
At the same time, some other VMs of the same pool connected to other L2 networks migrate without problems.
VM configuration:
{
"count": 1,
"virtualmachine": [
{
"account": "test",
"affinitygroup": [],
"arch": "x86_64",
"cpunumber": 8,
"cpuspeed": 1000,
"cpuused": "0.43%",
"created": "2026-07-16T10:41:24+0300",
"deleteprotection": false,
"details": {
"Message.ReservedCapacityFreed.Flag": "false",
"cpuNumber": "8",
"cpuOvercommitRatio": "4",
"hypervisortoolsversion": "xenserver56",
"memory": "12288",
"memoryOvercommitRatio": "2",
"platform": "device-model:qemu-upstream-compat;apic:true;viridian:true;timeoffset:0;cores-per-socket:1;pae:true;acpi:1;hpet:true;secureboot:false;nx:true",
"rootdisksize": "40"
},
"diskioread": 0,
"diskiowrite": 0,
"diskkbsread": 66,
"diskkbswrite": 485,
"diskofferingid": "57bf8694-722b-4b72-939d-f8367aeb95a3",
"diskofferingname": "test",
"displayname": "test-vm",
"displayvm": true,
"domain": "test",
"domainid": "9cfeffa6-7064-4f6d-9e87-71da84db99b0",
"domainpath": "ROOT/test",
"guestosid": "3610579a-4224-11ec-8697-62c4e64309fe",
"haenable": true,
"hasannotations": false,
"hostcontrolstate": "Enabled",
"hostid": "c7722e69-1320-44f7-8dd9-da7f64a50fa2",
"hostname": "xcp-test",
"hypervisor": "XenServer",
"id": "943abbd3-0fe1-4a8d-9103-b720df48c31b",
"instancename": "i-222-2222-VM",
"isdynamicallyscalable": false,
"lastupdated": "2026-07-22T11:25:37+0300",
"memory": 12288,
"memoryintfreekbs": 6191235,
"memorykbs": 12582912,
"memorytargetkbs": 0,
"name": "test",
"networkkbsread": 24,
"networkkbswrite": 0,
"nic": [
{
"deviceid": "0",
"extradhcpoption": [],
"id": "413f962f-8c50-4960-be13-06f386740d39",
"isdefault": true,
"macaddress": "02:07:07:72:00:15",
"networkid": "f004cc1c-dbc7-46e2-b68f-f94486f79580",
"networkname": "test-net",
"secondaryip": [],
"traffictype": "Guest",
"type": "L2"
}
],
"osdisplayname": "Other Linux (64-bit)",
"ostypeid": "3610579a-4224-11ec-8697-62c4e64309fe",
"passwordenabled": false,
"pooltype": "PreSetup",
"receivedbytes": 0,
"rootdeviceid": 0,
"rootdevicetype": "ROOT",
"securitygroup": [],
"sentbytes": 0,
"serviceofferingid": "d7b6331a-6647-4194-9700-bac19cc6989e",
"serviceofferingname": "test",
"state": "Running",
"tags": [],
"templatedisplaytext": "test",
"templateformat": "ISO",
"templateid": "86f7dd7b-300e-45bd-8309-c79598dc6cfd",
"templatename": "Test",
"templatetype": "USER",
"userid": "7aac7740-5899-4af0-a1eb-f2fd1e1d8dc3",
"username": "test",
"zoneid": "9505445a-7164-4675-876d-1a2fee1f7e46",
"zonename": "test-zone"
}
]
}
Network configuration:
{
"count": 1,
"network": [
{
"account": "test",
"acltype": "Account",
"broadcastdomaintype": "Vlan",
"broadcasturi": "vlan://1234",
"canusefordeploy": true,
"created": "2026-05-14T14:22:10+0300",
"details": {
"hideIpAddressUsage": "false"
},
"displaynetwork": true,
"displaytext": "test-net",
"dns1": "1.1.1.1",
"dns2": "8.8.8.8",
"domain": "test",
"domainid": "9cfeffa6-7064-4f6d-9e87-71da84db99b0",
"domainpath": "ROOT/test",
"hasannotations": false,
"id": "f004cc1c-dbc7-46e2-b68f-f94486f79580",
"ispersistent": false,
"issystem": false,
"name": "test-net",
"networkofferingavailability": "Optional",
"networkofferingconservemode": true,
"networkofferingdisplaytext": "test-net L2",
"networkofferingid": "55634a31-3d5f-45ad-84dc-093ff55db8b9",
"networkofferingname": "test-net L2",
"physicalnetworkid": "636227a2-081e-4494-bd93-6adeea0e768a",
"privatemtu": 1500,
"publicmtu": 1500,
"receivedbytes": 0,
"redundantrouter": false,
"related": "f004cc1c-dbc7-46e2-b68f-f94486f79580",
"restartrequired": false,
"sentbytes": 0,
"service": [],
"specifyipranges": false,
"specifyvlan": true,
"state": "Setup",
"strechedl2subnet": false,
"supportsvmautoscaling": false,
"tags": [],
"traffictype": "Guest",
"type": "L2",
"vlan": "1234",
"zoneid": "9505445a-7164-4675-876d-1a2fee1f7e46",
"zonename": "test-zone"
}
]
}
Here is the ACS's log:
2026-07-24 12:39:25,033 DEBUG [c.c.a.t.Request] (Work-Job-Executor-133:[ctx-71b90daf, job-155111/job-155112, ctx-dbc25316]) (logid:cf26e16a) Seq 77361-801359258695256835: Executing: { Cmd , MgmtId: 108597816265214, via: 77361(xcp-test), Ver: v1, Flags: 100111, [{"com.cloud.agent.api.PrepareForMigrationCommand":{"vm":{"id":"9679","name":"i-222-2222-VM","bootloader":"PyGrub","state":"Running","type":"User","cpus":"8","minSpeed":"700","maxSpeed":"1000","minRam":"(6.00 GB) 6442450944","maxRam":"(12.00 GB) 12884901888","arch":"x86_64","os":"Other Linux (64-bit)","platformEmulator":"Other install media","bootArgs":"","enableHA":"true","limitCpuUse":"false","enableDynamicallyScaleVm":"false","details":{"cpuNumber":"8","memory":"12288","memoryOvercommitRatio":"2","Message.ReservedCapacityFreed.Flag":"false","hypervisortoolsversion":"xenserver56","cpuOvercommitRatio":"4","rootdisksize":"40","platform":"device-model:qemu-upstream-compat;apic:true;viridian:true;timeoffset:0;cores-per-socket:1;pae:true;acpi:1;hpet:true;secureboot:false;nx:true"},"uuid":"943abbd3-0fe1-4a8d-9103-b720df48c31b","enterHardwareSetup":"false","disks":[{"data":{"org.apache.cloudstack.storage.to.VolumeObjectTO":{"uuid":"7db3b617-de76-47c4-806f-4f480dec55af","volumeType":"ROOT","dataStore":{"org.apache.cloudstack.storage.to.PrimaryDataStoreTO":{"uuid":"test","name":"test","id":"84","poolType":"PreSetup","host":"localhost","path":"/test","port":"0","url":"PreSetup://localhost/test/?ROLE=Primary&STOREUUID=test","isManaged":"false"}},"name":"ROOT-2222","size":"(40.00 GB) 42949672960","path":"22472c93-e335-4136-ad67-d7bc5eb18434","volumeId":"11120","vmName":"i-222-2222-VM","accountId":"222","format":"VHD","provisioningType":"THIN","poolId":"84","id":"11120","deviceId":"0","bytesReadRate":"(0 bytes) 0","bytesWriteRate":"(0 bytes) 0","iopsReadRate":"(0 bytes) 0","iopsWriteRate":"(0 bytes) 0","cacheMode":"NONE","hypervisorType":"XenServer","directDownload":"false","deployAsIs":"false","checkpointPaths":[],"checkpointImageStoreUrls":[],"followRedirects":"true"}},"diskSeq":"0","path":"22472c93-e335-4136-ad67-d7bc5eb18434","type":"ROOT","details":{"storageHost":"localhost","managed":"false","storagePort":"0","protocoltype":"PreSetup","storage.pool.disk.wait":"60","volumeSize":"(40.00 GB) 42949672960"}},{"data":{"org.apache.cloudstack.storage.to.TemplateObjectTO":{"id":"0","format":"ISO","accountId":"0","hvm":"false","bootable":"false","directDownload":"false","deployAsIs":"false","followRedirects":"false"}},"diskSeq":"3","type":"ISO"}],"nics":[{"deviceId":"0","networkRateMbps":"10000","defaultNic":"true","pxeDisable":"false","nicUuid":"413f962f-8c50-4960-be13-06f386740d39","details":{"PromiscuousMode":"false","ForgedTransmits":"true","MacLearning":"false","MacAddressChanges":"true"},"dpdkEnabled":"false","networkId":"1906","networkSegmentName":"D124-A229-Z7-S1906","uuid":"f004cc1c-dbc7-46e2-b68f-f94486f79580","mac":"02:07:07:72:00:15","dns1":"1.1.1.1","dns2":"8.8.8.8","broadcastType":"Vlan","type":"Guest","securityGroupEnabled":"false","name":"test"}],"vcpuMaxLimit":"32","configDriveLabel":"config-2","configDriveLocation":"SECONDARY","guestOsDetails":{},"extraConfig":{},"networkIdToNetworkNameMap":{"1906":"D124-A229-Z7-S1906"}},"rollback":"false","wait":"0","bypassHostMaintenance":"false"}}] }
2026-07-24 12:39:25,043 WARN [c.c.h.x.r.w.x.CitrixPrepareForMigrationCommandWrapper] (DirectAgent-188:[ctx-df8d7551]) (logid:cf26e16a) Catch Exception com.cloud.utils.exception.CloudRuntimeException prepare for migration failed due to com.cloud.utils.exception.CloudRuntimeException: Unable to support this type of network broadcast domain: null com.cloud.utils.exception.CloudRuntimeException: Unable to support this type of network broadcast domain: null
at com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.getNetwork(CitrixResourceBase.java:2894)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixPrepareForMigrationCommandWrapper.execute(CitrixPrepareForMigrationCommandWrapper.java:60)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixPrepareForMigrationCommandWrapper.execute(CitrixPrepareForMigrationCommandWrapper.java:35)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixRequestWrapper.execute(CitrixRequestWrapper.java:122)
at com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.executeRequest(CitrixResourceBase.java:1779)
at com.cloud.agent.manager.DirectAgentAttache$Task.runInContext(DirectAgentAttache.java:306)
at org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:49)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
at org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:46)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:840)
2026-07-24 12:39:25,043 DEBUG [c.c.a.m.D.Task] (DirectAgent-188:[ctx-df8d7551]) (logid:cf26e16a) Seq 77354-801359258695256835: Response Received:
2026-07-24 12:39:25,044 DEBUG [c.c.a.t.Request] (DirectAgent-188:[ctx-df8d7551]) (logid:cf26e16a) Seq 77361-801359258695256835: Processing: { Ans: , MgmtId: 108597816265214, via: 77361(xcp-test
l), Ver: v1, Flags: 110, [{"com.cloud.agent.api.PrepareForMigrationAnswer":{"dpdkInterfaceMapping":{},"result":"false","details":"Exception: com.cloud.utils.exception.CloudRuntimeException
Message: Unable to support this type of network broadcast domain: null
Stack: com.cloud.utils.exception.CloudRuntimeException: Unable to support this type of network broadcast domain: null
at com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.getNetwork(CitrixResourceBase.java:2894)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixPrepareForMigrationCommandWrapper.execute(CitrixPrepareForMigrationCommandWrapper.java:60)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixPrepareForMigrationCommandWrapper.execute(CitrixPrepareForMigrationCommandWrapper.java:35)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixRequestWrapper.execute(CitrixRequestWrapper.java:122)
at com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.executeRequest(CitrixResourceBase.java:1779)
at com.cloud.agent.manager.DirectAgentAttache$Task.runInContext(DirectAgentAttache.java:306)
at org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:49)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
at org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:46)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:840)
","wait":"0","bypassHostMaintenance":"false"}}] }
2026-07-24 12:39:25,044 DEBUG [c.c.a.m.ClusteredDirectAgentAttache] (DirectAgent-188:[ctx-df8d7551]) (logid:cf26e16a) Seq 77354-801359258695256835: No more commands found
2026-07-24 12:39:25,044 DEBUG [c.c.a.t.Request] (Work-Job-Executor-133:[ctx-71b90daf, job-155111/job-155112, ctx-dbc25316]) (logid:cf26e16a) Seq 77361-801359258695256835: Received: { Ans: , MgmtId: 1085978162652
14, via: 77361(xcp-test), Ver: v1, Flags: 110, { PrepareForMigrationAnswer } }
2026-07-24 12:39:25,044 ERROR [c.c.v.ClusteredVirtualMachineManagerImpl] (Work-Job-Executor-133:[ctx-71b90daf, job-155111/job-155112, ctx-dbc25316]) (logid:cf26e16a) Failed to prepare destination host 77361 for m
igration of VM i-222-2222-VM : Exception: com.cloud.utils.exception.CloudRuntimeException
Message: Unable to support this type of network broadcast domain: null
Stack: com.cloud.utils.exception.CloudRuntimeException: Unable to support this type of network broadcast domain: null
at com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.getNetwork(CitrixResourceBase.java:2894)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixPrepareForMigrationCommandWrapper.execute(CitrixPrepareForMigrationCommandWrapper.java:60)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixPrepareForMigrationCommandWrapper.execute(CitrixPrepareForMigrationCommandWrapper.java:35)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixRequestWrapper.execute(CitrixRequestWrapper.java:122)
at com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.executeRequest(CitrixResourceBase.java:1779)
at com.cloud.agent.manager.DirectAgentAttache$Task.runInContext(DirectAgentAttache.java:306)
at org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:49)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
at org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:46)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:840)
2026-07-24 12:39:25,045 DEBUG [c.c.v.UserVmManagerImpl] (Work-Job-Executor-133:[ctx-71b90daf, job-155111/job-155112, ctx-dbc25316]) (logid:cf26e16a) Skipping PVLAN setup on host 77353 for NIC NicProfile {"broadca
stUri":null,"deviceId":0,"iPv4Address":null,"id":14523,"reservationId":"a0591da5-b287-4749-a8fb-4aab81035be3","uuid":"413f962f-8c50-4960-be13-06f386740d39","vmId":9679} because broadcast URI is null
2026-07-24 12:39:25,056 ERROR [c.c.v.VmWorkJobHandlerProxy] (Work-Job-Executor-133:[ctx-71b90daf, job-155111/job-155112, ctx-dbc25316]) (logid:cf26e16a) Invocation exception, caused by: com.cloud.exception.AgentU
navailableException: Resource [Host:77361] is unreachable: Host 77361: Unable to prepare for migration due to Exception: com.cloud.utils.exception.CloudRuntimeException
Message: Unable to support this type of network broadcast domain: null
Stack: com.cloud.utils.exception.CloudRuntimeException: Unable to support this type of network broadcast domain: null
at com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.getNetwork(CitrixResourceBase.java:2894)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixPrepareForMigrationCommandWrapper.execute(CitrixPrepareForMigrationCommandWrapper.java:60)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixPrepareForMigrationCommandWrapper.execute(CitrixPrepareForMigrationCommandWrapper.java:35)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixRequestWrapper.execute(CitrixRequestWrapper.java:122)
at com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.executeRequest(CitrixResourceBase.java:1779)
at com.cloud.agent.manager.DirectAgentAttache$Task.runInContext(DirectAgentAttache.java:306)
at org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:49)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
at org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:46)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:840)
2026-07-24 12:39:25,056 INFO [c.c.v.VmWorkJobHandlerProxy] (Work-Job-Executor-133:[ctx-71b90daf, job-155111/job-155112, ctx-dbc25316]) (logid:cf26e16a) Rethrow exception com.cloud.exception.AgentUnavailableExcep
tion: Resource [Host:77361] is unreachable: Host 77361: Unable to prepare for migration due to Exception: com.cloud.utils.exception.CloudRuntimeException
Message: Unable to support this type of network broadcast domain: null
Stack: com.cloud.utils.exception.CloudRuntimeException: Unable to support this type of network broadcast domain: null
at com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.getNetwork(CitrixResourceBase.java:2894)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixPrepareForMigrationCommandWrapper.execute(CitrixPrepareForMigrationCommandWrapper.java:60)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixPrepareForMigrationCommandWrapper.execute(CitrixPrepareForMigrationCommandWrapper.java:35)
at com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixRequestWrapper.execute(CitrixRequestWrapper.java:122)
at com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.executeRequest(CitrixResourceBase.java:1779)
at com.cloud.agent.manager.DirectAgentAttache$Task.runInContext(DirectAgentAttache.java:306)
at org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:49)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
at org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:46)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:840)
versions
CloudStack 4.22.1.0+XCP-NG 8.2.1
The steps to reproduce the bug
What to do about it?
No response