Cisco Cisco Prime NAM 2320 Appliance White Paper

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Network Visibility in the Data Center:
Best Practices for Staying Ahead
Staying Ahead of Complexity 
The primary focus of the NAM solution is to provide direct application visibility, via deep network 
visibility, sustained monitoring, and performance analytics. This viewpoint and capability allows 
network and operations pros to understand how each application is performing over time, for each 
end user, in context of everything else that is going on across the shared infrastructure. For instance, a 
complex application may involve multiple executable components distributed across the data center, 
together with networked database and storage tiers, all ultimately accessed via a virtual desktop platform 
by mobile end users. The Cisco NAM can gather performance data from multiple source locations 
spanning such complex environments, so that the full context of each individual application ecosystem 
can be understood, while also recognizing that certain parts of the delivery infrastructure are being 
shared with other applications and used for other purposes.
Such context is essential when investigating performance issues, and for times when it is necessary, a 
number of major enhancements have been made to the Cisco NAM to facilitate faster troubleshooting 
and more efficient workflows. For instance, the technique for capturing packet sequences has been 
completely reworked, evolving from a condition-based trigger approach to instant snapshots via a 
constantly rolling buffer. Additionally, captures can be scheduled based on time or volume triggers, 
and the capture process can also raise an alarm automatically if conditions of concern are recognized 
and met.
A long list of console view and operator interface enhancements provide further efficiency improvements 
for accelerating incident recognition and analysis. For instance:
•  The overall design of views presented in the operator console is structured around client/server/
application/site data, rather than the traditional network monitoring approach of organizing 
around monitored network links (see Figure 2). This reflects application/service-orientation, 
speeding workflows that would otherwise have to start from an infrastructure-centric perspective. 
•  Site-to-site traffic views expose specific activity and traffic traveling between locations, NetFlow 
sources, subnets, VLANs, etc., exposing top applications, top talkers, and traffic trends.
•  Hovering a mouse pointer over response time data reveals server, network, and data-related 
contributions so problem sources can be easily assessed.
•  When drilling into details around a specific server for further information, all applications 
associated with that address are shown, so the full context of related/shared resource influences on 
performance become immediately apparent.