Cisco Cisco MGX-FRSM-HS2 B Serial Frame Service Module Libro blanco
Deployment Guide
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Figure 9. Comparison of Latency on the Network with Latency in the Data Center
Step 4. The other possibility is that the network delay spikes up. See Figure 10, in which the application delay
decreases but the network delay actually increases. In this case, the engineer will focus all the effort on the
network side. The NAM provides various tools to continue troubleshooting the network.
Note:
These graphs have been created under lab conditions using traffic generation tests. Do not use these
values as benchmarks for real-world numbers. This is also the reason the graph ends (in the real-world, historical
reporting would typically trend the network continuously).
Figure 10. Application Delay Deceases but Network Delay Actually Increases
The IAP toolkit is powerful, offering more than 40 metrics relating to user experience. Becoming familiar with the
metrics that are important to your network will provide significant benefits in helping manage your network
performance.
Alternate Deployments: IAP functionality can be useful at any place in the network where there is a need to
measure response-time-related metrics. Although NAM is deployed at the data center in this scenario, you can get
similar benefits in any other location. The only thing to keep in mind with IAP metrics is that NAM must be able to
monitor the interactions between the client and the server; that is, the data source must be set up in such a way that
NAM has access to the packet stream of interest.
Scenario 3: Monitoring Cisco WAAS and Measuring Its Impact
Cisco Wide Area Application Services is a comprehensive WAN optimization solution that accelerates applications
over the WAN, delivers video to the branch office, and provides local hosting of branch-office IT services. Cisco
WAAS allows IT departments to centralize applications and storage in the data center while maintaining LAN-like
application performance and provides locally hosted IT services while reducing the branch-office device footprint.