The returned connection object should not be used directly; instead it should be passed as an argument to the constructor of VmMigrationClient.
The optional options argument may be used to configure aspects of the returned VmMigrationConnection. Expected options are any of the types in the following option lists:
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["\u003cp\u003eThe latest release candidate for VM Migration is version 2.37.0-rc, with a list of previous versions available, including the current version, 2.33.0.\u003c/p\u003e\n"],["\u003cp\u003eThis page details the C++ reference documentation for the \u003ccode\u003evmmigration\u003c/code\u003e namespace, focusing on version 2.33.0.\u003c/p\u003e\n"],["\u003cp\u003eKey classes documented include \u003ccode\u003eVmMigrationClient\u003c/code\u003e for interacting with the VM Migration Service, and \u003ccode\u003eVmMigrationConnection\u003c/code\u003e for establishing connections.\u003c/p\u003e\n"],["\u003cp\u003eRetry policies and related classes, like \u003ccode\u003eVmMigrationLimitedErrorCountRetryPolicy\u003c/code\u003e and \u003ccode\u003eVmMigrationRetryPolicy\u003c/code\u003e, are available for managing connection reliability.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation includes functions such as \u003ccode\u003eMakeVmMigrationConnection\u003c/code\u003e to build a connection object, and the \u003ccode\u003eMakeDefaultVmMigrationConnectionIdempotencyPolicy\u003c/code\u003e to create the associated policy.\u003c/p\u003e\n"]]],[],null,["# Namespace google::cloud::vmmigration_v1 (2.33.0)\n\nVersion 2.33.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/vmmigration/latest/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.41.0](/cpp/docs/reference/vmmigration/2.41.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.40.0](/cpp/docs/reference/vmmigration/2.40.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.39.0](/cpp/docs/reference/vmmigration/2.39.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.38.0](/cpp/docs/reference/vmmigration/2.38.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.37.0](/cpp/docs/reference/vmmigration/2.37.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.36.0](/cpp/docs/reference/vmmigration/2.36.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.35.0](/cpp/docs/reference/vmmigration/2.35.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.34.0](/cpp/docs/reference/vmmigration/2.34.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.33.0](/cpp/docs/reference/vmmigration/2.33.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.32.0](/cpp/docs/reference/vmmigration/2.32.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.31.0](/cpp/docs/reference/vmmigration/2.31.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.30.0](/cpp/docs/reference/vmmigration/2.30.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.29.0](/cpp/docs/reference/vmmigration/2.29.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.28.0](/cpp/docs/reference/vmmigration/2.28.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.27.0](/cpp/docs/reference/vmmigration/2.27.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.26.0](/cpp/docs/reference/vmmigration/2.26.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.25.1](/cpp/docs/reference/vmmigration/2.25.1/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.24.0](/cpp/docs/reference/vmmigration/2.24.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.23.0](/cpp/docs/reference/vmmigration/2.23.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.22.1](/cpp/docs/reference/vmmigration/2.22.1/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.21.0](/cpp/docs/reference/vmmigration/2.21.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.20.0](/cpp/docs/reference/vmmigration/2.20.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.19.0](/cpp/docs/reference/vmmigration/2.19.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.18.0](/cpp/docs/reference/vmmigration/2.18.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.17.0](/cpp/docs/reference/vmmigration/2.17.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.16.0](/cpp/docs/reference/vmmigration/2.16.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.15.1](/cpp/docs/reference/vmmigration/2.15.1/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.14.0](/cpp/docs/reference/vmmigration/2.14.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.13.0](/cpp/docs/reference/vmmigration/2.13.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.12.0](/cpp/docs/reference/vmmigration/2.12.0/namespacegoogle_1_1cloud_1_1vmmigration__v1)\n- [2.11.0](/cpp/docs/reference/vmmigration/2.11.0/namespacegoogle_1_1cloud_1_1vmmigration__v1) \n\nClasses\n-------\n\n### [VmMigrationClient](/cpp/docs/reference/vmmigration/2.33.0/classgoogle_1_1cloud_1_1vmmigration__v1_1_1VmMigrationClient)\n\nVM Migration Service.\n\n### [VmMigrationConnection](/cpp/docs/reference/vmmigration/2.33.0/classgoogle_1_1cloud_1_1vmmigration__v1_1_1VmMigrationConnection)\n\nThe [`VmMigrationConnection`](/cpp/docs/reference/vmmigration/2.33.0/classgoogle_1_1cloud_1_1vmmigration__v1_1_1VmMigrationConnection) object for [`VmMigrationClient`](/cpp/docs/reference/vmmigration/2.33.0/classgoogle_1_1cloud_1_1vmmigration__v1_1_1VmMigrationClient).\n\n### [VmMigrationConnectionIdempotencyPolicy](/cpp/docs/reference/vmmigration/2.33.0/classgoogle_1_1cloud_1_1vmmigration__v1_1_1VmMigrationConnectionIdempotencyPolicy)\n\n### [VmMigrationLimitedErrorCountRetryPolicy](/cpp/docs/reference/vmmigration/2.33.0/classgoogle_1_1cloud_1_1vmmigration__v1_1_1VmMigrationLimitedErrorCountRetryPolicy)\n\nA retry policy for [`VmMigrationConnection`](/cpp/docs/reference/vmmigration/2.33.0/classgoogle_1_1cloud_1_1vmmigration__v1_1_1VmMigrationConnection) based on counting errors.\n\n### [VmMigrationLimitedTimeRetryPolicy](/cpp/docs/reference/vmmigration/2.33.0/classgoogle_1_1cloud_1_1vmmigration__v1_1_1VmMigrationLimitedTimeRetryPolicy)\n\nA retry policy for [`VmMigrationConnection`](/cpp/docs/reference/vmmigration/2.33.0/classgoogle_1_1cloud_1_1vmmigration__v1_1_1VmMigrationConnection) based on elapsed time.\n\n### [VmMigrationRetryPolicy](/cpp/docs/reference/vmmigration/2.33.0/classgoogle_1_1cloud_1_1vmmigration__v1_1_1VmMigrationRetryPolicy)\n\nThe retry policy for [`VmMigrationConnection`](/cpp/docs/reference/vmmigration/2.33.0/classgoogle_1_1cloud_1_1vmmigration__v1_1_1VmMigrationConnection).\n\nStructs\n-------\n\n### [VmMigrationBackoffPolicyOption](/cpp/docs/reference/vmmigration/2.33.0/structgoogle_1_1cloud_1_1vmmigration__v1_1_1VmMigrationBackoffPolicyOption)\n\nUse with [`google::cloud::Options`](https://cloud.google.com/cpp/docs/reference/common/latest/classgoogle_1_1cloud_1_1Options.html) to configure the backoff policy.\n\n### [VmMigrationConnectionIdempotencyPolicyOption](/cpp/docs/reference/vmmigration/2.33.0/structgoogle_1_1cloud_1_1vmmigration__v1_1_1VmMigrationConnectionIdempotencyPolicyOption)\n\nUse with [`google::cloud::Options`](https://cloud.google.com/cpp/docs/reference/common/latest/classgoogle_1_1cloud_1_1Options.html) to configure which operations are retried.\n\n### [VmMigrationPollingPolicyOption](/cpp/docs/reference/vmmigration/2.33.0/structgoogle_1_1cloud_1_1vmmigration__v1_1_1VmMigrationPollingPolicyOption)\n\nUse with [`google::cloud::Options`](https://cloud.google.com/cpp/docs/reference/common/latest/classgoogle_1_1cloud_1_1Options.html) to configure the long-running operations polling policy.\n\n### [VmMigrationRetryPolicyOption](/cpp/docs/reference/vmmigration/2.33.0/structgoogle_1_1cloud_1_1vmmigration__v1_1_1VmMigrationRetryPolicyOption)\n\nUse with [`google::cloud::Options`](https://cloud.google.com/cpp/docs/reference/common/latest/classgoogle_1_1cloud_1_1Options.html) to configure the retry policy.\n\nFunctions\n---------\n\n### MakeVmMigrationConnection(Options)\n\nA factory function to construct an object of type [`VmMigrationConnection`](/cpp/docs/reference/vmmigration/2.33.0/classgoogle_1_1cloud_1_1vmmigration__v1_1_1VmMigrationConnection). \nThe returned connection object should not be used directly; instead it should be passed as an argument to the constructor of [VmMigrationClient](/cpp/docs/reference/vmmigration/2.33.0/classgoogle_1_1cloud_1_1vmmigration__v1_1_1VmMigrationClient).\n\nThe optional `options` argument may be used to configure aspects of the returned [`VmMigrationConnection`](/cpp/docs/reference/vmmigration/2.33.0/classgoogle_1_1cloud_1_1vmmigration__v1_1_1VmMigrationConnection). Expected options are any of the types in the following option lists:\n\n- [`google::cloud::CommonOptionList`](https://cloud.google.com/cpp/docs/reference/common/latest/namespacegoogle_1_1cloud.html)\n- [`google::cloud::GrpcOptionList`](https://cloud.google.com/cpp/docs/reference/common/latest/namespacegoogle_1_1cloud.html)\n- [`google::cloud::UnifiedCredentialsOptionList`](https://cloud.google.com/cpp/docs/reference/common/latest/namespacegoogle_1_1cloud.html)\n- [`google::cloud::vmmigration_v1::VmMigrationPolicyOptionList`](about:invalid#zCSafez)\n\n| **Note:** Unexpected options will be ignored. To log unexpected options instead, set `GOOGLE_CLOUD_CPP_ENABLE_CLOG=yes` in the environment.\n\n### MakeDefaultVmMigrationConnectionIdempotencyPolicy()"]]
