public sealed class RequestMirrorPolicy : IMessage<RequestMirrorPolicy>, IEquatable<RequestMirrorPolicy>, IDeepCloneable<RequestMirrorPolicy>, IBufferMessage, IMessage
Reference documentation and code samples for the Compute Engine v1 API class RequestMirrorPolicy.
A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow.
The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-08 UTC."],[[["\u003cp\u003eThe \u003ccode\u003eRequestMirrorPolicy\u003c/code\u003e class in the Google.Cloud.Compute.V1 namespace is used to specify how requests are mirrored to a separate backend service without waiting for responses.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version of \u003ccode\u003eRequestMirrorPolicy\u003c/code\u003e is 3.6.0, with several previous versions available, ranging from 1.0.0 to 3.5.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eRequestMirrorPolicy\u003c/code\u003e class implements several interfaces, including \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable\u003c/code\u003e, \u003ccode\u003eIDeepCloneable\u003c/code\u003e, and \u003ccode\u003eIBufferMessage\u003c/code\u003e, offering a range of functionalities for message handling and object management.\u003c/p\u003e\n"],["\u003cp\u003eIt includes properties like \u003ccode\u003eBackendService\u003c/code\u003e, which specifies the URL of the backend service being mirrored to, and \u003ccode\u003eHasBackendService\u003c/code\u003e, which checks if the backend service field is set.\u003c/p\u003e\n"],["\u003cp\u003eThe mirroring process appends "-shadow" to the host or authority header before directing traffic to the shadow service, and serverless NEG backends are not supported for mirroring.\u003c/p\u003e\n"]]],[],null,["# Compute Engine v1 API - Class RequestMirrorPolicy (3.13.0)\n\nVersion latestkeyboard_arrow_down\n\n- [3.13.0 (latest)](/dotnet/docs/reference/Google.Cloud.Compute.V1/latest/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [3.12.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/3.12.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [3.11.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/3.11.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [3.10.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/3.10.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [3.9.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/3.9.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [3.8.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/3.8.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [3.7.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/3.7.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [3.6.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/3.6.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [3.5.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/3.5.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [3.4.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/3.4.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [3.3.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/3.3.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [3.2.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/3.2.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [3.1.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/3.1.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [3.0.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/3.0.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [2.17.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/2.17.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [2.16.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/2.16.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [2.15.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/2.15.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [2.14.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/2.14.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [2.13.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/2.13.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [2.12.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/2.12.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [2.11.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/2.11.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [2.10.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/2.10.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [2.9.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/2.9.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [2.8.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/2.8.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [2.7.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/2.7.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [2.6.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/2.6.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [2.5.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/2.5.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [2.4.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/2.4.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [2.3.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/2.3.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [2.2.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/2.2.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [2.1.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/2.1.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [2.0.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/2.0.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [1.4.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/1.4.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [1.3.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/1.3.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [1.2.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/1.2.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [1.1.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/1.1.0/Google.Cloud.Compute.V1.RequestMirrorPolicy)\n- [1.0.0](/dotnet/docs/reference/Google.Cloud.Compute.V1/1.0.0/Google.Cloud.Compute.V1.RequestMirrorPolicy) \n\n public sealed class RequestMirrorPolicy : IMessage\u003cRequestMirrorPolicy\u003e, IEquatable\u003cRequestMirrorPolicy\u003e, IDeepCloneable\u003cRequestMirrorPolicy\u003e, IBufferMessage, IMessage\n\nReference documentation and code samples for the Compute Engine v1 API class RequestMirrorPolicy.\n\nA policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. \n\nInheritance\n-----------\n\n[object](https://learn.microsoft.com/dotnet/api/system.object) \\\u003e RequestMirrorPolicy \n\nImplements\n----------\n\n[IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage-1.html)[RequestMirrorPolicy](/dotnet/docs/reference/Google.Cloud.Compute.V1/latest/Google.Cloud.Compute.V1.RequestMirrorPolicy), [IEquatable](https://learn.microsoft.com/dotnet/api/system.iequatable-1)[RequestMirrorPolicy](/dotnet/docs/reference/Google.Cloud.Compute.V1/latest/Google.Cloud.Compute.V1.RequestMirrorPolicy), [IDeepCloneable](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IDeepCloneable-1.html)[RequestMirrorPolicy](/dotnet/docs/reference/Google.Cloud.Compute.V1/latest/Google.Cloud.Compute.V1.RequestMirrorPolicy), [IBufferMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IBufferMessage.html), [IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage.html) \n\nInherited Members\n-----------------\n\n[object.GetHashCode()](https://learn.microsoft.com/dotnet/api/system.object.gethashcode) \n[object.GetType()](https://learn.microsoft.com/dotnet/api/system.object.gettype) \n[object.ToString()](https://learn.microsoft.com/dotnet/api/system.object.tostring)\n\nNamespace\n---------\n\n[Google.Cloud.Compute.V1](/dotnet/docs/reference/Google.Cloud.Compute.V1/latest/Google.Cloud.Compute.V1)\n\nAssembly\n--------\n\nGoogle.Cloud.Compute.V1.dll\n\nConstructors\n------------\n\n### RequestMirrorPolicy()\n\n public RequestMirrorPolicy()\n\n### RequestMirrorPolicy(RequestMirrorPolicy)\n\n public RequestMirrorPolicy(RequestMirrorPolicy other)\n\nProperties\n----------\n\n### BackendService\n\n public string BackendService { get; set; }\n\nThe full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.\n\n### HasBackendService\n\n public bool HasBackendService { get; }\n\nGets whether the \"backend_service\" field is set"]]
