[[["わかりやすい","easyToUnderstand","thumb-up"],["問題の解決に役立った","solvedMyProblem","thumb-up"],["その他","otherUp","thumb-up"]],[["わかりにくい","hardToUnderstand","thumb-down"],["情報またはサンプルコードが不正確","incorrectInformationOrSampleCode","thumb-down"],["必要な情報 / サンプルがない","missingTheInformationSamplesINeed","thumb-down"],["翻訳に関する問題","translationIssue","thumb-down"],["その他","otherDown","thumb-down"]],["最終更新日 2025-09-05 UTC。"],[],[],null,["# Best practices for Cloud Router\n===============================\n\nWhen working with Cloud Router, use the following best practices.\n\n- If your on-premises Border Gateway Protocol (BGP) router supports [Bidirectional Forwarding Detection (BFD)](/network-connectivity/docs/router/concepts/bfd), enable it on your on-premises BGP device and on the Cloud Router to provide a high-availability network link that can respond faster to link failures.\n- If your peer router supports it, consider enabling [MD5 authentication](/network-connectivity/docs/router/how-to/use-md5-authentication) on your BGP sessions. By default, BGP sessions are unauthenticated.\n- Enable graceful restart on your on-premises BGP device. With graceful restart, traffic between networks isn't disrupted in the event of a Cloud Router or on-premises BGP device failure as long as the BGP session is re-established within the graceful restart period.\n- If graceful restart is not supported or enabled on your device, configure two on-premises BGP devices with one tunnel each to provide redundancy. If you don't configure two separate on-premises devices, Cloud VPN tunnel traffic can be disrupted in the event of a Cloud Router or an on-premises BGP device failure.\n- To ensure that you don't exceed Cloud Router [quotas](/network-connectivity/docs/router/quotas#quotas), use Cloud Monitoring to create [alerting policies](/monitoring/alerts). For example, you can use the metrics for learned routes to create alerting policies for the [unique Cloud Router\n dynamic route prefixes quotas](/network-connectivity/docs/router/quotas#from-own-region-limit).\n- If appropriate, you can manually configure [custom\n learned routes](/network-connectivity/docs/router/concepts/learned-routes) and apply them to a BGP session. Dynamic routes created from custom learned routes are programmed and withdrawn just like dynamic routes that are BGP received.\n\nWhat's next\n-----------\n\n- To become familiar with Cloud Router terminology, see [Key terms](/network-connectivity/docs/router/concepts/key-terms)."]]
