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Pesan diagnostik dan status sesi BFD
RFC 5880
menentukan kode diagnostik yang menentukan alasan sistem lokal untuk perubahan
terakhir dalam status sesi Bidirectional Forwarding Detection (BFD).
Pesan diagnostik dapat menjadi indikator yang berguna
saat memecahkan masalah. Anda dapat melihat pesan atau kode ini saat
melihat status Cloud Router.
Tabel berikut mencantumkan pesan diagnostik BFD, kode error numerik,
dan tindakan tindak lanjut yang disarankan.
Pesan diagnostik BFD
Kode Numerik
Tindakan yang disarankan
NO_DIAGNOSTIC
0
Tidak ada informasi diagnostik yang tersedia. Untuk informasi selengkapnya, lihat
Mesin
Status BFD di RFC 5880 dan tabel status sesi BFD
di bagian berikutnya.
CONTROL_DETECTION_TIME_EXPIRED
1
BFD lokal tidak menerima paket kontrol dari sisi jarak jauh dalam
jangka waktu (num_rx_interval * bfd multiplier). Hal ini
dapat terjadi jika link penerusan tidak aktif atau BFD pada sistem
jarak jauh tidak berfungsi dengan benar.
Periksa konektivitas ke sistem jarak jauh, dan periksa
penghitung pengiriman sesi sistem BFD jarak jauh.
ECHO_FUNCTION_FAILED
2
—
NEIGHBOR_SIGNALED_SESSION_DOWN
3
Tetangga BFD memberi sinyal DOWN. Periksa konfigurasi dan status operasional BFD
sistem jarak jauh.
FORWARDING_PLANE_RESET
4
—
PATH_DOWN
5
—
CONCATENATED_PATH_DOWN
6
—
ADMINISTRATIVELY_DOWN
7
BFD dalam sistem lokal telah disetel ke DOWN oleh administrator karena
upgrade software BFD. Periksa apakah statusnya kembali aktif setelah
upgrade.
REVERSE_CONCATENATED_PATH_DOWN
8
—
Status sesi BFD
Tabel berikut mencantumkan status sesi BFD dan kode error numeriknya.
[[["Mudah dipahami","easyToUnderstand","thumb-up"],["Memecahkan masalah saya","solvedMyProblem","thumb-up"],["Lainnya","otherUp","thumb-up"]],[["Sulit dipahami","hardToUnderstand","thumb-down"],["Informasi atau kode contoh salah","incorrectInformationOrSampleCode","thumb-down"],["Informasi/contoh yang saya butuhkan tidak ada","missingTheInformationSamplesINeed","thumb-down"],["Masalah terjemahan","translationIssue","thumb-down"],["Lainnya","otherDown","thumb-down"]],["Terakhir diperbarui pada 2025-08-12 UTC."],[],[],null,["# BFD diagnostic messages and session states\n==========================================\n\n| **Important:** BFD can only be enabled on provisioned VLAN\n| attachments that use Dataplane version 2. You can view the `dataplaneVersion` for a\n| VLAN attachment by viewing the attachment details in one of the following ways:\n|\n| - **API** : Use the [interconnectAttachments.get](/compute/docs/reference/rest/v1/interconnectAttachments/get) method. You can use this method on VLAN attachments for either Dedicated Interconnect or Partner Interconnect.\n| - **Google Cloud CLI** : Use the `gcloud compute interconnects attachments describe\n| `\u003cvar translate=\"no\"\u003eATTACHMENT-NAME\u003c/var\u003e command where \u003cvar translate=\"no\"\u003eATTACHMENT-NAME\u003c/var\u003e is the name of the VLAN attachment for either Dedicated Interconnect or Partner Interconnect.\n|\n| In the output of the API or gcloud CLI command, look for the\n| `dataplaneVersion` field with a value of `2`. If the field is absent\n| from the output, the VLAN attachment is using version 1 and cannot be used with BFD. For more\n| information, contact your customer account team.\n|\n| The Cloud Interconnect Dataplane v2 is unrelated to\n| [Google Kubernetes Engine (GKE) Dataplane V2](/kubernetes-engine/docs/concepts/dataplane-v2)\n\n[RFC 5880](https://datatracker.ietf.org/doc/html/rfc5880#section-4.1)\ndefines diagnostic codes that specify the local system's reason for the last\nchange in the Bidirectional Forwarding Detection (BFD) session state.\nDiagnostic messages can be helpful indicators\nwhen troubleshooting. You can see these messages or codes when\n[viewing Cloud Router status](/network-connectivity/docs/router/how-to/viewing-router-details#viewing-router-status).\n\nThe following table lists BFD diagnostic messages, their numeric error codes,\nand suggested follow-up actions.\n\n\u003cbr /\u003e\n\n### BFD session states\n\nThe following table lists BFD session states and their numeric error codes.\n\n### BFD status messages\n\nYou can view BFD status messages under the `bfdStatus` field in command\noutput from the [`gcloud compute routers\nget-status` command](/sdk/gcloud/reference/compute/routers/get-status).\n\nFor field definitions and descriptions, see the\n[Cloud Router API documentation](/compute/docs/reference/rest/v1/routers/getRouterStatus).\n\nWhat's next\n-----------\n\n- To modify BFD settings on a BGP session, see\n [Update or disable BFD](/network-connectivity/docs/router/how-to/updating-bfd).\n\n- For information about BGP session states, see\n [BGP session states](/network-connectivity/docs/router/concepts/bgp-states).\n\n- To troubleshoot issues with Cloud Router, see\n [Troubleshooting](/network-connectivity/docs/router/resources/troubleshooting)."]]
