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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-08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\u003eThis webpage provides documentation for the \u003ccode\u003eBfdPacket.Types.Diagnostic\u003c/code\u003e enum within the Google Cloud Compute Engine v1 API.\u003c/p\u003e\n"],["\u003cp\u003eThe latest documented version of \u003ccode\u003eBfdPacket.Types.Diagnostic\u003c/code\u003e is 3.6.0, with a range of versions available from 1.0.0 to 3.6.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eBfdPacket.Types.Diagnostic\u003c/code\u003e enum specifies diagnostic codes for BFD session state changes, referencing RFC5880 section 4.1.\u003c/p\u003e\n"],["\u003cp\u003eThe available diagnostic code options 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"]]],[],null,[]]
