These networking capabilities are provided by VMware ESX Server and managed by VMware VirtualCenter. VMware infrastructure provides a rich set of networking capabilities that well integrate with sophisticated enterprise networks. Note For more information about AMD Processors that support this technology, refer to the following URL: įor more information about Intel Processors that support this technology, refer to the following URL: Expediting this revolution is the introduction of more powerful x86 platforms built to support a virtual environment, namely the availability of multi-core CPU and the use of AMD Virtualization (AMD-V) and the Intel Virtualization Technology ( IVT). The ability to break the link between physical hardware (such as CPU, memory, and disk) from an operating system provides new opportunities to consolidate beyond the physical level and to optimize resource utilization and application performance. Mainframe legacy systems have been "virtualized" for many years, employing logical partitions (LPARs) to achieve greater resource utilization. Technologies such as virtual local area networks (VLANs), virtual storage area networks (VSANs), and virtual network devices are widely deployed in today's enterprise data center. Virtualization of network, storage, and server platforms has been maturing over time. As a result, data center applications are no longer bound to specific hardware resources thus making the application unaware of the underlying hardware, yet viewing the CPUs, memory, and network infrastructure as shared resource pools available via virtualization.
Server virtualization is a technique that allows the abstraction of server resources to provide flexibility and optimize usage on a standardized infrastructure. IT groups are considering the data center facility, the servers it houses, and network components as a pool of resources rather than unrelated assets "siloed" to resolve specific business requirements.
#Vmware mac address range genetator software
IntroductionĬurrently, there are efforts to consolidate and standardize the hardware and software platforms comprising the enterprise data center. This document is intended for network architects, network engineers, and server administrators interested in understanding and deploying VMware ESX Server 3.x hosts in a Cisco data center environment. The document provides details regarding the internal constructs of the ESX Server and their relation to external Cisco network devices are discussed. It documents a set of suggested best practices for deploying VMware Infrastructure (VI) 3.x and VMware ESX Server 3.x in a Cisco network environment.
This document is a collaboration between Cisco and VMware. VMware Infrastructure 3 in a Cisco Network Environment VMotion Migration on the same Subnet (Flat Networks).FibreChannel Implementation Considerations.ESX Server Connectivity and Networking Design Considerations.Using NIC Teaming for Connectivity Redundancy.Incorrect Configurations with vSwitches.ESX Server Network and Storage Connectivity.Use the vSphere Client to enable prefix-based or range-based MAC address allocation and to adjust the allocation parameters. You can use range-based allocation to include or exclude ranges of Locally Administered Addresses (LAA). You can use prefix-based allocation to specify an OUI other than the default one 00:50:56 by VMware, or to introduce Locally Administered MAC Addresses (LAA) for a larger address space. VMware Organizationally Unique Identifier (OUI) allocation assigns MAC addresses based on the default VMware OUI 00:50:56 and the vCenter Server ID.
If you reconfigure the network adapter of a powered off virtual machine, for example, by changing the automatic MAC address allocation type or setting a static MAC address, vCenter Server resolves MAC address conflicts before the adapter reconfiguration takes effect.įor information about resolving MAC address conflicts, see the vSphere Troubleshooting documentation. While this virtual machine has been powered off, its MAC address has been assigned to another virtual machine that has been powered on. The change might be caused by an address conflict with another virtual machine. When a virtual machine is powered on again, it might acquire a different MAC address. The MAC address of a powered off virtual machine is not checked against the addresses of running or suspended virtual machines. VCenter Server does not allocate MAC addresses when provisioning a virtual machine. Note: If you use invalid prefix- or range-based allocation values, an error is logged in the
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