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Manual Chapter: Viewing Performance Data
Manual Chapter
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14 
Chapter 13, Collecting Metrics, describes how the Global Traffic Manager captures data on how network traffic flows between the Global Traffic Manager and the external Local Domain Name Systems (LDNS) servers and internal resources with which it communicates.
You can view graphs that display information about how the Global Traffic Manager is performing. You can use this information to help you determine how to modify the configuration to obtain the best possible performance from the system.
The Global Traffic Manager provides two types of performance data graphs on the performance screen: the GTM Performance and GTM Request Breakdown graphs. You can view detailed versions of each graph by clicking the View Detailed Graph link.
The GTM Performance graph shows the throughput of the Global Traffic Manager. The graph includes the following data:
GTM Requests
Represents the number of incoming DNS requests.
GTM Resolutions
Represents the number of incoming DNS requests that were resolved by any method.
GTM Resolutions Persisted
Represents the number of incoming DNS requests that were resolved by a persistence record.
GTM Resolutions Returned to DNS
Represents the number of incoming DNS requests that were not resolved by the Global Traffic Manager, but were instead passed on to the DNS server for resolution.
GTM Type A - IPv4 Requests
Represents IPv4-formatted requests.
GTM Type AAAA/A6 - IPv6 Requests
Represents IPv6-formatted requests.
1.
On the Main tab of the navigation pane, expand Overview and then click Performance.
The Performance screen opens.
2.
On the menu bar, click Global Traffic.
The Performance screen displays the global traffic management Graphs.
3.
From the Graph Interval list, select the time period for which you want to view performance data.
4.
Click the Refresh button to update the graphs.
5.
Click the View Detailed Graph links to view the detailed graphs.
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