Cisco Cisco Prime Virtual Network Analysis Module (vNAM) 6.3 白皮書

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Network Visibility in the Data Center:

Best Practices for Staying Ahead

Figure 2: Analyzing Traffic Behavior; Investigating the cause of traffic increase, isolating the host and conversation

• Application Response Time (ART) distribution views highlight important trends in end user

experience (see Figure 3). Also visible in the same figure are the sliding-window controls provided

within the operator console to set and adjust the interval of interest. In this case, both the Application

Response Time Distribution chart and the Other Metrics chart have been automatically updated to

reflect only data points occurring within the interval chosen in the upper Transaction Time graph.

• One-click capture allows an operator to instantly assemble a trace of activity from any IP address.
• The packet capture analyzer supports Google-like type-ahead search for quickly finding and

applying available filters. Further, a unique aspect of the NAM approach to packet analysis is the

preliminary error scan feature, which is used against capture files to highlight problematic patterns,

and from which network managers can drill directly to the packets associated with any listed error.