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Map Update Variables
If you want to adjust the Dynamic Network Map to work better in environments with high latency or devices that don’t respond rapidly to queries, the following registry variables can be created and modified:

•DestWebMapUpdate (DWORD, default=5000ms)
This variable controls how often the web map will request information from the service via an Ajax fetch. If other variables are increased, this variable may need to be increased to permit the polling window to complete in time for the web page to update correctly.

•DestWebMapPingTimeout (DWORD, default=2500ms)
This variable controls how long the ping points will wait for a response before declaring the ping as failed.

•DestWebMapPingRetries (DWORD, default=1)
This variable controls how many attempts should be made to fetch ping information before declaring the ping as failed.

•DestWebMapSNMPTimeout (DWORD, default=1500ms)
This variable controls how long the program will wait for an SNMP response from a device before declaring the fetch as failed.

•DestWebMapSNMPRetries (DWORD, default=1)
This variable controls how many attempts should be made to fetch SNMP information before declaring the SNMP fetch as failed.

•DestWebMapSNMPDelay (DWORD, default=1000)
This variable controls how long each poll thread should wait between SNMP queries to determine the current utilization of a link.