Recent Posts

Networking Blog site changes and VDS best practices paper available for download

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Recently, there were some changes made to VMware blog site.  In that process we have moved the networking blog from its old site blogs.vmware.com/networking to the new site blogs.vmware.com/vsphere/networking. From now on all new posts will be posted on this new site blogs.vmware.com/vsphere/networking. I think the content of the old site will remain there. I will try and see Read more...

VDS Best Practices – Operational aspects (Part 6 of 6)

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Operational best practices After customers successfully design the virtual network infrastructure, the next challenge for the customer is how to deploy the design and how to keep the network operational. VMware provides various tools, APIs, and procedures to help customers deploy and manage their network infrastructure effectively. Following are some key tools that are available Read more...

VDS Best Practices – Blade Server Deployments (Part 5 of 6)

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Blade Server in Example Deployment Blade servers are server platforms that provide higher server consolidation per rack unit along with benefits of lower power and cooling costs. Blade chassis that hosts the blade servers have proprietary architectures and each vendor has its own way of managing resources in the blade chassis. It is difficult to Read more...

VDS Best Practices – Rack Server Deployment with Two 10 Gigabit adapters (Part 4 of 6)

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Rack Server with Two 10 Gigabit Ethernet network adapters The two 10 Gigabit Ethernet network adapters deployment model is becoming very common because of the benefits they provide through I/O consolidation. The key benefits include better utilization of I/O resources, simplified management, and reduced CAPEX and OPEX. While this deployment provides these benefits, there are Read more...

VDS Best Practices – Virtual and Physical Switch Parameters (Part 2 of 6)

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Important virtual and physical switch parameters Before diving into the different design options around the example deployment, let’s take a look at the VDS (virtual) and physical network switch parameters that should be considered in all these design options. These are some key parameters that vSphere and network administrators have to take into account while Read more...

vSphere 5 New Networking Features – Enhanced NIOC

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Network I/O Control Enhancements Consolidated I/O or I/O virtualization delivers similar benefits as provided by x86 virtualization in terms of better utilization and consolidation of resources. However, as multiple traffic types flow through a single physical network interface, it becomes important to manage the traffic effectively such that critical application flows don’t suffer because of Read more...

vSphere 5 New Networking Features – Port Mirroring

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Port mirroring is the capability on a network switch to send a copy of network packets seen on a switch port to a network-monitoring device connected to another switch port. Port mirroring is also referred to as Switch Port Analyzer (SPAN) on Cisco switches. In VMware vSphere 5, a Distributed Switch provides a similar port Read more...

vSphere 5 New Networking Features – NetFlow

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As part of the Network Monitoring and Troubleshooting features, vSphere 5 provides NetFlow and Port Mirroring capabilities. In this blog entry I will discuss the NetFlow feature that is available in vSphere 5. NetFlow NetFlow is a networking protocol that collects IP traffic information as records and sends them to a collector such as CA Read more...