Reports Are Not DNS-Resolving All Addresses
To prevent the NetProfiler from overwhelming DNS servers, you can place the following limits on resolving hosts. You can control the:
• number of DNS resolution requests the NetProfiler sends to a DNS server at one time.
• maximum number of addresses the NetProfiler attempts to resolve addresses for.
Riverbed recommends that you set these values to 500 each to prevent overwhelming the DNS server. This mean that the NetProfiler does not attempt to resolve more than 500 rows from any one table and sends up to 500 requests at one time. You can increase these values to allow more addresses to be processed.
Be aware that the NetProfiler waits only one second for responses from DNS servers, to prevent slow DNS servers from delaying the return of reports. Any addresses that are not resolved before the time expires do not display the associated DNS name.