Cisco Cisco MGX-FRSM-HS2 B Serial Frame Service Module Libro blanco

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The captured packets can be decoded and analyzed on the NAM itself for more efficient problem isolation as shown

in Figure 14.

Figure 14. Packet Capture Decode

Capture -> Buffers -> Select a buffer -> Decode

By combining the rich traffic and response time analytics provided by Cisco NAM with advanced threshold-based

packet capture and decode, IT departments can take a proactive approach toward detecting performance issues

before they affect end-user experience.

Use Case 4: NAM Helps Fine-Tune WAAS Optimization Policies

Once WAAS is deployed, NAM can monitor critical servers in the network to provide visibility into connections to

those servers, such as whether the connections are optimized or pass-through. Further, NAM can also monitor

NetFlow data from a remote branch router to view the traffic flow to that particular branch.

WAAS has default classifiers. For certain customized applications on certain servers, specific policies may be

applied. There may be cases where the same customized application may also be hosted on other servers that are

not getting classified appropriately and hence not getting optimized. A combination of NAM’s NetFlow reporting and

WAAS monitoring can help identify such situations. This information can be used to fine-tune the application

classifiers and the policies applied.

The top talkers by protocol and port number shown in Figure 6 can be used to cross-check with the WAAS Central

Manager. If certain applications and hosts are not included in the default WAAS policy, classifiers can be added for

these.

Additionally, in Figure 15, we are reviewing all the hosts using a particular application as reported by NetFlow. The

hosts that list a greater out bits value compared to in bits would indicate the servers. These servers can be added as

monitored servers for WAAS monitoring in the NAM (Setup -> Data Sources -> WAAS -> Monitored Servers).