The data center of today has more strain put on its network as virtual desktop infrastructures, mobile devices and cloud services grow in popularity.
As more devices and users get connected and even more servers are virtualized, the vSphere network needs administrators with the troubleshooting know-how to remove roadblocks quickly when network traffic slows to a crawl.
VMware's vSphere Standard Switch and vSphere Distributed Switch are two ways to route traffic; administrators who have expertise with these switches can tweak their systems for better performance and more security around virtual machines. For multi-tenant cloud providers or large enterprises that require even greater flexibility and protection, VMware came out with its NSX network virtualization offering that infuses functionality, such as a distributed firewall, into the hypervisor.
This guide shares troubleshooting tips and informative articles that cover the latest in networking in a vSphere infrastructure.
1Clearing communication clogs-
When network performance is lagging or virtual machines cannot talk to hosts, it takes a certain set of skills and troubleshooting chops to uncover the cause in today's multifaceted virtual environments.
Filtering potentially dangerous traffic from entering and sensitive data from leaving the data center can give the added benefit of better overall system performance. Continue Reading
Administrators looking for the best protection and performance should avoid the default networking configuration. Continue Reading
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2The basic option-
Working with the vSphere Standard Switch
Despite the word "standard" in its name, the vSphere Standard Switch features plenty of functionality to route traffic in the data center and keep data moving in the right direction.
Our expert describes the differences between VMware's two switch options. Continue Reading
3More advanced features-
Stepping up to the vSphere Distributed Switch
The vSphere Distributed Switch (vDS) comes with the vSphere Enterprise Plus license. The enhanced functionality of vDS offers more visibility to the network along with centralized administration to simplify operations.
With PowerCLI 5.5, VMware put in additional cmdlets to give administrators another option to work with vDSes. Continue Reading
4The new frontier-
Network virtualization with NSX
VMware introduced its NSX network virtualization offering in 2013 and promoted the product as a way to bring added flexibility and security to an area that had largely remained constant for several decades. By abstracting certain network functions from hardware, NSX is a key component to VMware's vision for the software-defined data center.
The virtualization company says freeing your physical network from its shackles will increase deployment speeds while reducing the network's complexity. Continue Reading
VMware's method is more software based while Cisco uses a combination of hardware and software to abstract the network. Continue Reading
The security and gateway services in the NSX Edge virtual machine means a company can always scale up these functions by adding more virtual machines. Continue Reading
The NSX 6.1 update infused more protections into the hypervisor enabling security rules to stick with virtual machines as they move around the data center. Continue Reading
NSX helps steer network traffic while software-defined networking deals with more with optimization of that flow. Continue Reading
VMware released its certification track for NSX at VMworld 2014 for administrators who want to prove their expertise in this technology. Continue Reading