Networking Knowledge Base

Cisco 3850:  IOS-XE/Firmware Upgrade (Install Mode)   NOTE: This procedure is aimed at Cisco 3850 switch ONLY.IOS-XE Bundle Mode is not covered. 9300, 9500 (vanilla & high-performance), ISR 1k, ISR 4k and ASR is not covered. Router(s) & switch(es) r...

Introduction:Configuration concept of IOS XR:Configuration Example:Related Information: Introduction:Command syntax of IOS XR is different than classic IOS. In this document you will learn about “Commit” command used in IOS XR. To understand this com...

IntroductionConfiguringBPDUGuardConfiguringBPDU Filter IntroductionIn Networking World we know that to avoid any loops or any problem related to switching arcihtecure the stability of the Root Bridge is of paramount importance in the operation and co...

Application Experience aims to provide visibility and insights into the performance of applications. It enables a network administrator to quickly analyze the health of applications present in the network and isolate network issues from application ...

                                                                                            MPLS LAYER-3 VPN IntroductionVirtual Routing and Forwarding (VRF)MP-BGP (Multi-protocol BGP)RD (Route Distinguisher)RT (Route Target)Transport and VPN LabelMP...

Core IssueA Virtual Private Network (VPN) is as a network in which connectivity a customer's multiple sites is deployed on a shared infrastructure with the same access or security policies as in a private network.  VPNs allow multiple customers to sh...

Introduction:Configuration Example: Introduction:The ability to use a router as a TFTP server can be quite useful. We have often used this feature to upgrade several routers that are separated from the TFTP server by slow WAN connections. In situatio...

Introduction This community article will go through the step-by-step process of how to integrate Catalyst SD-WAN with ISE. This integration enables identity-based firewall rule making on Catalyst Edge devices for micro-segmentation at the branch.  Pr...

Summary Here we will go over the configuration needed for MACsec Switch to Switch using a Pre-Shared Key.  Topics that will be covered include, command usage, key derivation and key server election. Please see the MACsec History and Terminology for ...

Introduction:Configuration Overview:Verification Command:Reference:  Introduction: Policy-Based Routing (PBR) provides a method to forward packets by overriding the information available in the IP routing table. By using PBR, customers can implement ...

Have you been looking for a smarter, simpler way to manage your network? Cisco Catalyst Center is a powerful management system that leverages Artificial Intelligence (AI) to connect, secure, and automate network operations. It delivers enterprise-sc...

IntroductionPrerequisitesSoftware upgrade via vManage WebUI:Upload the image to the RepositoryCopy and Install the ImageActivate the new ImageSet Default VersionSoftware upgrade via device CLIPrechecks Before Edge UpgradeCopy the Image to the DeviceI...

Download Route Redistribution document covering Filtering Suboptimal Routing and Routing Loop through three interesting scenarios: Scenario 1: Suboptimal Routing between OSPF and EIGRP  Scenario 2: Routing Loop and Suboptimal Routing RIP EIGRP OSPF ...

IntroductionOSPF, being a link-state protocol, allows for every router in the network to know of every link and OSPF speaker in the entire network. From this picture each router independently runs the Shortest Path First (SPF) algorithm to determine ...

IntroductionRequirements/Pre-requisitesOverviewNXOS interfacesManagement InterfaceEthernet portsThousandEyes Enterprise Agents (EAs)ConfigurationStep 1: Download the TAR fileStep 2: Install the applicationStep 3a: Mgmt0 interface ConfigurationStep 3b...