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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-28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\u003eThis page provides a comprehensive list of available versions for the \u003ccode\u003eBackendService.Types.Protocol\u003c/code\u003e enum within the Google Cloud Compute Engine v1 API, ranging from version 1.0.0 to the latest, 3.6.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eBackendService.Types.Protocol\u003c/code\u003e enum specifies the protocol used by a BackendService to communicate with backends, including options like HTTP, HTTPS, HTTP2, TCP, SSL, UDP, or GRPC.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation details each protocol's purpose, such as \u003ccode\u003eGrpc\u003c/code\u003e being for Traffic Director, \u003ccode\u003eHttp2\u003c/code\u003e for HTTP/2 with SSL, and \u003ccode\u003eSsl\u003c/code\u003e for TCP proxying with SSL, among others.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version of the Google.Cloud.Compute.V1 is 3.6.0, and the current page is displaying details for version 2.15.0.\u003c/p\u003e\n"],["\u003cp\u003eThere are special fields such as \u003ccode\u003eUndefinedProtocol\u003c/code\u003e which means the field is not set and \u003ccode\u003eUnspecified\u003c/code\u003e which means it can be used with any L3/L4 forwarding rules.\u003c/p\u003e\n"]]],[],null,[]]