Latest News about Cisco Technology
December 21, 2024
VMware vSphere Distributed Switch A vSphere distributed switch (VDS) is a virtual switch that provides centralized management and monitoring of the networking configuration of all hosts associated with the switch. A distributed switch is set up on a vCenter Server system, and its settings are propagated to all hosts associated with the switch. A network
READ MORECisco ACI Overview Cisco ACI is a spine/leaf network of Nexus 9k switches using the ACI operating system with a management platform. The network management platform called APIC provides a single place from which the network can be managed. Cisco ACI solutions have the following building blocks: Cisco ACI resolves the following challenges of traditional
READ MORESpine Switches Spine switches interconnect leaf switches and provide the backbone of the ACI fabric. Spine switches are available with various port speeds, ranging from 40Gbps to 400Gbps. Within a pod, all tier-1 leaf switches connect to all spine switches, and all spine switches connect to all tier-1 leaf switches, but no direct connectivity is
READ MORECisco ACI Deployment Models Cisco ACI consists of the following architectural solutions: Cisco ACI MultiPod Cisco ACI MultiPod is part of the “single APIC cluster/single domain” family of solutions; a single APIC cluster is deployed to manage all the different ACI networks that are interconnected. These separate ACI networks are called “pods,” and each of
READ MORECisco Cloud ACI Cisco Cloud Application-Centric Infrastructure (Cisco Cloud ACI) is a comprehensive solution for simplified operations, automated network connectivity, consistent policy management, and visibility for multiple on-premises data centers and public clouds or multicloud environments. The solution captures business and user intents and translates them into native policy constructs for applications deployed across various
READ MORECisco ACI Hardware Cisco APICs can be deployed either as physical or virtual appliances. Physical APICs are Cisco C-Series servers with ACI code installed. The Cisco APIC appliance has two form factors for medium and large configurations. Medium configurations have a medium-size CPU, hard drive, and memory for up to 1000 edge ports. Large configurations
READ MOREVXLAN Data Plane VXLAN uses stateless tunnels between VTEPs to transmit traffic of the overlay Layer 2 network through the Layer 3 transport network. Let’s discuss a few terms before we look at the actual packet walk for the VXLAN data plane: Figure 7-16 VXLAN Routing When an EVPN VTEP performs forwarding lookup and
READ MORECommunication Between Hosts in Same VLAN/VNI An example of a VXLAN packet-forwarding flow between hosts in the same VLAN/VNI is shown in Figure 7-17. Figure 7-17 Communication Between Hosts in Same VLAN/VNI In Figure 7-17, Host-A and Host-B in VXLAN segment 5010 communicate with each other through the VXLAN tunnel between VTEP-1 and VTEP-2.
READ MORENetwork Interface Virtualization Using FEX Cisco FEX technology is based on the IEEE 802.1BR standard. The Cisco FEX technology solution is composed of a parent switch that can be a Cisco Nexus 5000 Series switch, Nexus 6000 Series switch, Nexus 7000 Series switch, Nexus 9000 Series switch, or a Cisco UCS fabric interconnect. The parent
READ MOREVMware vSphere Standard Switch A VMware vSphere standard switch works like a physical Ethernet switch. It bridges traffic internally between virtual machines in the same VLAN and provides network connectivity to external networks. A single ESXi host can have multiple vSwitches configured and segregated from each other, in a manner similar to VMs. Physical NICs
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