Netqos v2 19/12/08 12:56 Page 33
Networks / Telecoms
Performance First
The need to shift to performance-based network management.
By Paul O’Reilly, Director of European Operations, NetQoS.
Applications delivered across the wide Managing Network managers to invest in redundant
area network (WAN) are increasing in Availability servers, hot-swappable components,
volume and complexity, and as a For most of the past two decades and other hardware to guarantee
result organisations are shifting their network engineers have focused on uptime.
approach to network performance managing the network for availability.
management. The first concern for Today, however, most enterprise and Managing Network and
network engineers and operations service provider networks operate Application Performance
managers is no longer just device with 99.9 percent uptime or better. While the reliability of networks has
availability, but also how well What drove the change? One reason improved, performance issues have
business-critical applications perform is that technology has become more increased dramatically. The biggest
over the network. A review of the reliable in recent years. In addition, influence driving this trend is the now
evolution of network management will more and more mission-critical common user expectation of a
help explain why this is happening applications today are networked, and ubiquitous and instantaneous
and what it means. managers have realised that network network. Other trends that have
downtime can be very expensive to increased the volume and complexity
the business. This high penalty has of traffic and the need to monitor how
made it worthwhile for network well applications are delivered over
the WAN include:
Data centre consolidation:
Enterprises and government agencies
alike are migrating applications
and data to central locations
to save real estate,
infrastructure, power and
personnel costs, and improve
manageability.
Increased number of remote users:
Branch offices and telecommuters are
proliferating as companies grow,
merge, and expand globally. Also, the
exponential growth of e-commerce
transactions continues unabated.
The rise of voice and video traffic:
Voice and video traffic are increasing
Winter 2008
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