Use the following task to enable or disable a hostname lookup policy for statistics that are broken down by client or by hostname. Enabling hostname lookup performs hostname resolution for each IP address in the breakdown, and then stores and displays the data by hostname. This is the default setting.
Disabling hostname lookup saves all client breakdowns by their IP addresses, which reduces overhead and improves performance.
Changing the hostname lookup policy results in a breakdown that contains both hostnames and IP addresses. For example, if you disable hostname lookup and then enable it, the old breakdowns display as IP addresses and the new breakdowns display as hostnames.