Access your Pro+ Content below.
Network diagnostics that see through virtualization
This article is part of the IT in Europe issue of September 2011
Troubleshooting slow network performance is difficult enough in a physical environment, but virtualization requires engineers to run even more complex network diagnostics. After all, in a bare metal data center, network administrators have lots of tools at their disposal to follow packets from end to end, but in a virtualized data center, east-west network traffic between virtual machines on the same physical server is invisible to physical network infrastructure. Fortunately, there are ways for the network team to peer into the black box of the virtualized environment using a patchwork of tools and strategies. Using virtual switches to manage virtualization traffic Hypervisors on virtualized servers use built-in virtual switches (vSwitches) to manage traffic among virtual machines. These software vSwitches are designed to replicate the functions of a physical network switch, including support for port monitoring. However, they typically lack the deep functionality of a traditional hardware-based network switch. Cisco Systems' ...
Access this PRO+ Content for Free!
By submitting your personal information, you agree that TechTarget and its partners may contact you regarding relevant content, products and special offers.
Features in this issue
Running network diagnostics for virtualization requires a new set of strategies that involve virtual switches, virtual network probes and rerouting traffic for analysis.
News in this issue
Mobile cloud computing solutions are challenged by network latency and delay, but distributing mobile cloud applications so they're closer to users may be an answer to the problem.
Using a mobile device management solution from MobileIron, one law firm lets employees use both personal and corporate devices to securely access enterprise apps.