{"id":13,"date":"2008-05-18T14:03:54","date_gmt":"2008-05-18T14:03:54","guid":{"rendered":"https:\/\/fir3netwp.gmsrrpobkbd.com\/2008\/05\/18\/cdp\/"},"modified":"2021-07-27T15:49:31","modified_gmt":"2021-07-27T15:49:31","slug":"cdp","status":"publish","type":"post","link":"https:\/\/www.fir3net.com\/Networking\/Protocols\/cdp.html","title":{"rendered":"What is the Cisco Discovery Protocol (CDP) ?"},"content":{"rendered":"<p><span>The Cisco Discovery Protocol (CDP) is a proprietary layer 2 network protocol developed by Cisco Systems that runs on most Cisco equipment and is used to share information about other directly connected Cisco equipment such as the operating system version and IP address.<\/span><\/p>\n<h2><span><strong>Globally<\/strong><\/span><\/h2>\n<pre class=\"prettyprint\"><span>(config)# cdp run<br \/>(config)# no cdp run<br \/><\/span><\/pre>\n<h2><span><strong>Interface<\/strong><\/span><\/h2>\n<p>To disable,<\/p>\n<pre class=\"prettyprint\"><span>(config-if)# no cdp enable<br \/><\/span><\/pre>\n<p><span><span><strong>To enable,<\/strong><\/span><span><strong><\/strong><\/span><\/span><\/p>\n<pre class=\"prettyprint\"><span>(config-if)# cdp enable<br \/><\/span><\/pre>\n<h2><span><strong>Additional Commands <\/strong><\/span><\/h2>\n<pre class=\"prettyprint\"><span style=\"color: #3366ff;\"><span># show cdp<\/span><br \/><span># show cdp neighbor detail<\/span><br \/><span># show cdp neighbor<\/span><br \/><span># show cdp interface<\/span><br \/><span>(config)# cdp timer 45<\/span><br \/><span>(config)# cdp holdtime 60<\/span><br \/><\/span><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>The Cisco Discovery Protocol (CDP) is a proprietary layer 2 network protocol developed by Cisco Systems that runs on most Cisco equipment and is used to share information about other directly connected Cisco equipment such as the operating system version and IP address. Globally (config)# cdp run(config)# no cdp run Interface To disable, (config-if)# no &#8230; <a title=\"What is the Cisco Discovery Protocol (CDP) ?\" class=\"read-more\" href=\"https:\/\/www.fir3net.com\/Networking\/Protocols\/cdp.html\" aria-label=\"Read more about What is the Cisco Discovery Protocol (CDP) ?\">Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is the Cisco Discovery Protocol (CDP) ? - Fir3net<\/title>\n<meta name=\"description\" content=\"The Cisco Discovery Protocol (CDP) is a proprietary layer 2 network protocol developed by Cisco Systems that runs on most Cisco equipment and is used to\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.fir3net.com\/Networking\/Protocols\/cdp.html\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is the Cisco Discovery Protocol (CDP) ? 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