Reference documentation and code samples for the Compute Engine v1 API enum BfdPacket.Types.Diagnostic.
The diagnostic code specifies the local system's reason for the last change in session state. This allows remote systems to determine the reason that the previous session failed, for example. These diagnostic codes are specified in section 4.1 of RFC5880
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-08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 latest version of the \u003ccode\u003eGoogle.Cloud.Compute.V1.BfdPacket.Types.Diagnostic\u003c/code\u003e is 3.6.0, and the webpage provides access to multiple previous versions, spanning from version 1.0.0 to 3.6.0.\u003c/p\u003e\n"],["\u003cp\u003eThis documentation covers the \u003ccode\u003eBfdPacket.Types.Diagnostic\u003c/code\u003e enum, detailing various diagnostic codes that specify the reasons for changes in session state as per RFC5880 section 4.1.\u003c/p\u003e\n"],["\u003cp\u003eThe available fields within the \u003ccode\u003eBfdPacket.Types.Diagnostic\u003c/code\u003e enum include \u003ccode\u003eAdministrativelyDown\u003c/code\u003e, \u003ccode\u003eConcatenatedPathDown\u003c/code\u003e, \u003ccode\u003eControlDetectionTimeExpired\u003c/code\u003e, \u003ccode\u003eEchoFunctionFailed\u003c/code\u003e, \u003ccode\u003eForwardingPlaneReset\u003c/code\u003e, \u003ccode\u003eNeighborSignaledSessionDown\u003c/code\u003e, \u003ccode\u003eNoDiagnostic\u003c/code\u003e, \u003ccode\u003ePathDown\u003c/code\u003e, \u003ccode\u003eReverseConcatenatedPathDown\u003c/code\u003e, \u003ccode\u003eUndefinedDiagnostic\u003c/code\u003e, and \u003ccode\u003eUnspecified\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe namespace for this document is \u003ccode\u003eGoogle.Cloud.Compute.V1\u003c/code\u003e and it can be found in the \u003ccode\u003eGoogle.Cloud.Compute.V1.dll\u003c/code\u003e assembly.\u003c/p\u003e\n"]]],[],null,[]]