Infrastructure as Code (IaC) has become a cornerstone of modern DevOps practices, enabling teams to automate and manage infrastructure efficiently. Terraform, an open-source IaC tool by HashiCorp, allows you to define and provision infrastructure using declarative configuration files. In this article, we’ll walk through how to use Terraform to automate the creation of a load […]
Month: March 2025
Configure VXLAN in Distributed Gateway Mode Using BGP EVPN in Huawei Fabric
Distributed VXLAN gateways can be configured to address problems that occur in legacy centralized VXLAN gateway networking, for example, forwarding paths are not optimal, and the ARP entry specification is a bottleneck. On the network shown in the figure below, an enterprise has VMs deployed in different data centers. VM1 on Server1 belongs to VLAN […]
Network simulation with Containerlab
Containerlab is a tool for provisioning networking labs built with containers. It is free. Before we begin, The following requirements must be satisfied to let containerlab tool run successfully: first we need install docker, in this case we use ubuntu 24.04 Remove all old version of docker Set up Docker’s apt Repository Install docker Verify […]
Assign VLANs Based on IP Subnets in the Huawei Switch
A data center network has multiple services, including office services, production services, and disaster recovery services. Each service uses a unique IP subnet. To facilitate management, packets of the same service must be transmitted in the same VLAN, and packets of different services be transmitted in different VLANs. In the figure below, the switch connects to […]