Home›Browse›Bidirectional Forwarding Detection🌐EnglishEnglishDeutschFrançaisPortuguês中文EntityQ4904183· pop 6· linked from 9 articlesBidirectional Forwarding DetectionSign in to savefault detection protocolAvailable in 6 languagesFrançaisDeutsch中文PortuguêsUkrainianvia Wikidata sitelinks · CC0