Networking Knowledge Base

The Cisco Document Team has posted an article. This document describes how to troubleshoot CBC Cipher Vulnerability in NCCM 3.8+ and CSPC 2.9+. Know of something that needs documenting? Share a new document request to doc-ic-fe...

For many years Prime Infrastructure has been a key management platform for customers to manage their campus networks. But the benefits of Cisco DNA Center and bringing up campus and branch with intent and security in mind go way beyond what Prime In...

Hi All,Good Day...This attachment about difference between the STP and RSTP.I hope it will be helpful in interview preparation and career.ThanksRakesh 

Part 1 was here https://community.cisco.com/t5/networking-knowledge-base/how-to-update-interface-description-for-cisco-switches-and-why/ta-p/5137184In the Part 1 was explained very simple ansible script to update interface descriptions for Cisco rout...

I have cisco WS-C4500X-16. When I power off a few minute, switch stuck in rommon mode. And then I plug off power and plug in and then switch can boot os. Why switch cannot boot os when power off a few minute(10minutes). !!!Rommon mode log!!!Switch#▒*...

Introduction: Catalyst Center's release 2.2.3 marked the introduction of the Secure AP Onboarding feature, a significant advancement for network administrators seeking robust security measures. This feature facilitates the seamless integration of ac...

Onboarding a switch with Plug and Play (PnP) requires that the onboarding switch initially get its IP address via DHCP.  After whichever method (i.e. DHCP option 43, DNS, PnP Connect) is successfully used to tell the switch the IP address of Cisco D...

The Cisco Document Team has posted an article. This document describes how to troubleshoot commands/registers for issues specifically related to stacking port/cable problems and silent reloads. Know of something that needs docu...

Welcome to a series of articles about ThousandEyes! ThousandEyes is a powerful SaaS platform that gives a digital picture of enterprise infrastructure, formed by test views, alerts, dashboards, and other components. This article aims to dig deeper in...

Why we need interface description? for better visibility and better troubleshooting. You connect to switch and you see in log that interface 24 is disconnected. And you need to quickly identify what is wrong and what device is disconnected, and with...

The Cisco Document Team has posted an article. Cisco SD-WAN - Some links below may open a new browser window to display the document you selected. Know of something that needs documenting? Share a new document request to doc-ic...

Cisco Catalyst SD-WAN Analytics, an integral component of Cisco Catalyst SD-WAN solution, simplifies network operations by providing granular network insights, predictivity, and automation that not only heighten network integrity but also deliver op...

Announcement! New SD-WAN Case Studies for Small Branch and Large Global WAN!   What are Validated Design & Deployment Guides? Simple, modular, use-case based design and deployment guidance to provide you with Validated designs and best practices,  ...

The Cisco Document Team has posted a video. The purpose of this video is to provide the necessary knowledge to Perform a Rommon Recovery on C9000. switches, the process will allow you to recover the switch when facing a booting loop sce...

IntroductionUse CasesYoutube VideosResourcesFeedback   Introduction Cisco® SD-Routing (short for Software-Defined Routing) allows you to centrally manage your Cisco IOS XE routers operating in autonomous mode using Cisco Catalyst SD-WAN Manager. Beg...