Reference documentation and code samples for the Compute Engine v1 API enum BackendService.Types.Protocol.
The protocol this BackendService uses to communicate with backends. Possible values are HTTP, HTTPS, HTTP2, TCP, SSL, UDP or GRPC. depending on the chosen load balancer or Traffic Director configuration. Refer to the documentation for the load balancers or for Traffic Director for more information. Must be set to GRPC when the backend service is referenced by a URL map that is bound to target gRPC proxy.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-28 UTC."],[[["\u003cp\u003eThe latest version available for the \u003ccode\u003eBackendService.Types.Protocol\u003c/code\u003e is 3.6.0, with a range of versions available going back to version 1.0.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eBackendService.Types.Protocol\u003c/code\u003e enum defines the communication protocols used by a BackendService to interact with backends.\u003c/p\u003e\n"],["\u003cp\u003eSupported protocols include \u003ccode\u003eGrpc\u003c/code\u003e, \u003ccode\u003eHttp\u003c/code\u003e, \u003ccode\u003eHttp2\u003c/code\u003e, \u003ccode\u003eHttps\u003c/code\u003e, \u003ccode\u003eSsl\u003c/code\u003e, \u003ccode\u003eTcp\u003c/code\u003e, and \u003ccode\u003eUdp\u003c/code\u003e, each serving specific purposes.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eUndefinedProtocol\u003c/code\u003e indicates that the enum field is not set, while \u003ccode\u003eUnspecified\u003c/code\u003e allows the Backend Service to be used with any L3/L4 Forwarding Rules.\u003c/p\u003e\n"],["\u003cp\u003eThis content is referencing the \u003ccode\u003eGoogle.Cloud.Compute.V1\u003c/code\u003e namespace and is found within the \u003ccode\u003eGoogle.Cloud.Compute.V1.dll\u003c/code\u003e assembly.\u003c/p\u003e\n"]]],[],null,[]]