Knowing tcpdump is an essential skill that will come in handy for any System Administrator, Network Engineer, and security professional. Tcpdump is an immensely powerful command-line interface packet sniffer. It must be launched as root or with superuser rights because of its use of the promiscuous mode or to be sure to have sufficient privileges […]
Database Replication plays a wide role if you have a call manager cluster environment. It should function properly to provide uninterrupted services to the users. How to check the DB Replication status of your Call Manager Cluster? At first, we will have to run command Check the output and verify if Cluster Replication State contains […]
CISCO ISE Introduction: CISCO Identity Services Engine is a prominent NAC and identity grounded solution from cisco which provides a solution to streamline security policy management, reduce operating costs, and dispenses a single network access policy plan all over the organization amalgamating multiple services. It is a type of policy platform that permits you to […]
Have you ever stumbled upon a VxRail deployment and you do not have a systematic approach on how to install a VxRail cluster? Do not worry we have got you covered! VxRail deployments can be very daunting if pre-requisites are not met properly. VxRail cluster is a Hyper-Converged Infrastructure that can be built with at […]
We will briefly explain about Cisco CIMC and how update and upgrade are used interchangeably but have different meanings. This will further explain: What to expect when you want to upgrade your CIMC device, Why should one do so, What are the challenges, What are the steps or procedure? How these are different from the […]
Balancing generally corresponds to the process of maintaining and managing several things through equal distribution i.e., to achieve equilibrium. Load simply means total utilization of resources. What is Load Balancing? Load Balancing is referred to as a process or technique of distributing workloads across multiple resources to optimize efficiency, reliability, and capacity. This in turn will […]
Before going deep into how to configure Cisco ACI (Network Centric Mode), let’s understand what Cisco ACI is. Cisco ACI (Application Centric Infrastructure) is Cisco’s Software Defined Networking Solution for the Data Center. It let’s the application requirements define the network. At a high level, it comprises of: 1. An APIC cluster (Application Policy Infrastructure […]
What is VxRAIL? Before discussing the errors when installing VxRAIL, Let’s talk about VxRAIL itself. VxRAIL is an HCI (Hyper converged infrastructure) appliance optimised for the Vmware hypervisor. At it’s heard – it’s powered by Vmware VSAN. Think of it as a Dell PowerEdge server + VSAN + customised installation and maintenance scripts. It comes […]
In the last part of this series on configuring Cisco ACI, we brought up the physical domain and created basic logical constructs such as VLANs, tenants, bridge domains, etc. In this part, we’ll go deeper and create policies (global, Attachable Access Entity profiles, interface policies, link level policies, CDP interface policies, etc). We’ll also look […]
