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Article ID: CTX388977
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Updated On:
Description
customer found "WAN Latency" 、"DC Latency" and some metrics value appears as "NA" in ADM HDX Insight report.
Like below:

Resolution
HDX Insight displays the number of EDT sessions and non-EDT sessions as part of the active sessions report. The Users table displays a detailed report of all the users in the system.
The table shows metrics such as WAN latency, DC latency, retransmits, RTOs and some of these metrics are not available for users who do have EDT sessions as they are calculated from the TCP stack currently. Therefore, they appear as “NA”.Please refer
Support for EDT in HDX insight for more details.
Problem Cause
The "defective sessions" are enlightened data transport(EDT) session, which replied on UDP instead of TCP. Currently, this is expected behavior.