Just discover this while going through the Cisco configuration guide “NX Fundamentals Configuration Guide” under the Chapter “Understanding the Command Line” at section “Configuring CLI Variables”. What you can do is define persistent or non persistent variable to work with … Continue reading
Overview One basic MPLS VPN services have been implemented, there is various additional services that can run on the top. One example are MPLS Multicast VPN and MPVN services. MPLS Multicast VPN service simply allow your customer to route multicast over … Continue reading
Nexus 1000v components The Nexus 1000v is a software switch running Cisco NX-OS that is destined to be integrated with VMWare vCenter. The goal is to propose a virtual switch that can span across multiple ESX hosts so that networking … Continue reading
Topology used Multiple Contexts configuration First, the firewall has to be configured as Transparent and multi-context with the commands firewall transparent and mode multiple. This last command will ask a reboot in order to complete. After the reboot, by default … Continue reading
Technology Overview AToM stands for Any Transport Over MPLS. The goal behind this is to be able to transport any Layer 2 protocol over an MPLS Core. AToM is able to transport the following protocols over MPLS : Ethernet (EoMPLS), … Continue reading
vPC Overview vPC stands for Virtual Port-Channel. This features allows the creation of a cluster of Nexus so that devices connecting to it only see one device. There is no blocked port between vPC and the devices attaching to it … Continue reading
Overview FabricPatch is designed to resolve the shortcomings of the traditional Layer 2 design. Today, Datacenters need to find a compromise between the flexibility offered by layer 2 technologies and scalability offered by layer 3 technologies. Typically Layer 2 is … Continue reading
Concepts and usage To understand the concept behind PVLANs, the concept of regular VLANs need to be understood. VLANs are a simple way to create different Ethernet segments on the top on one unique physical infrastructure. The main goal was … Continue reading