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"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-03-24 UTC."],[[["The latest version of the `Google.Cloud.Compute.V1.BfdPacket.Types.Diagnostic` is 3.6.0, and the page provides links to various versions ranging from 1.0.0 to 3.6.0."],["The content describes the `Diagnostic` enum within the `Google.Cloud.Compute.V1` namespace, found in the `Google.Cloud.Compute.V1.dll` assembly."],["The `Diagnostic` enum provides diagnostic codes that explain the local system's reasons for session state changes, as detailed in RFC5880 section 4.1."],["The enum has eleven fields including `AdministrativelyDown`, `ConcatenatedPathDown`, `ControlDetectionTimeExpired`, `EchoFunctionFailed`, `ForwardingPlaneReset`, `NeighborSignaledSessionDown`, `NoDiagnostic`, `PathDown`, `ReverseConcatenatedPathDown`, `UndefinedDiagnostic`, and `Unspecified`."]]],[]]
