Access your Pro+ Content below.
Network performance testing considerations for a 40 GbE upgrade
This article is part of the Network Evolution issue of February 2012 Vol. 3, No. 1
Upgrading from 10 Gigabit Ethernet data center links to 40 Gigabit Ethernet is the obvious answer to handling the ever increasing network traffic resulting from improved processor performance and virtualization. But faster backbone links alone will not necessarily improve performance. Upgrading to 40 GbE will require a new level of network performance testing that takes into consideration a number of elements. Performance problems to consider before a 40 GbE upgrade Since the IEEE ratified 802.3ba for 40 and 100 GbE, networking vendors have launched a range of products aimed at improving link speed. Specifically, they are hoping to address the bottlenecking on 10 GbE links between racks caused by engineers replacing 1 GbE server network interfaces with 10 GbE interfaces and 10 GbE traffic coming to the top of the rack from each server. Before upgrading backbone links, there are a host of other problem areas and influencing factors to consider: Backplane: In some cases, even though vendors have released higher capacity interface ...
Features in this issue
Military radar may cause fixed broadband wireless interference. This expert tip explains tests and ideas to check if this is the case and how to address this interference.
Network bloggers have a lot to say, but do we care? We should. In the top ten network blogger opinions of 2011, our experts poke holes in TRILL, OpenFlow and 10 GbE optimization.
Migrating to 40 GbE will require network performance testing that will take into consideration backplane throughput, jitter and the needs of an FCoE environment.
News in this issue
Packet analysis may provide a deeper look into the network, but NetFlow analysis can offer a broader view. To achieve even better network visibility the two work best together.
Until now the DevOps movement has been lead by systems administrators, but now network engineers may find it also eases network automation and cloud orchestration.