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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-28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 webpage details the \u003ccode\u003eProtocol\u003c/code\u003e enum within the \u003ccode\u003eGoogle.Cloud.Compute.V1\u003c/code\u003e namespace, specifically for \u003ccode\u003eBackendService\u003c/code\u003e types.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version of this documentation is 3.6.0, with historical versions dating back to 1.0.0 also available.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eProtocol\u003c/code\u003e enum defines possible communication protocols for \u003ccode\u003eBackendService\u003c/code\u003e including \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, \u003ccode\u003eUdp\u003c/code\u003e, \u003ccode\u003eUndefinedProtocol\u003c/code\u003e, and \u003ccode\u003eUnspecified\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eUnspecified\u003c/code\u003e protocol allows a \u003ccode\u003eBackend Service\u003c/code\u003e to work with any L3/L4 Forwarding Rules.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eGrpc\u003c/code\u003e is a supported protocol when used with Traffic Director.\u003c/p\u003e\n"]]],[],null,[]]