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- Refresh device caches before collecting switch port data: Checkbox to enable refreshing of ARP caches on switches and switch-routers in the managed network before NetMRI performs polling of switch ports. Enabling this feature will not produce an automatic ping sweep of the managed network. The benefit of this feature is that it enables more accurate detection of all endpoint devices on switches. Without ARP refresh, some endpoint devices may not be detected. This feature is globally disabled by default. With this setting globally enabled, individual device groups can also be set to enable or disable this feature. For more information, see Global Switch Port Management Polling Settings
- ARP Collection Priority: (Available in full NetMRI license) Defines the collection method for collecting ARP databases from devices. When set to CLI with SNMP Fallback, NetMRI collects ARP data from devices with the CLI when NetMRI has the appropriate access credentials for the active network device. This mode of collection works only for Cisco devices and will fall back to SNMP if CLI access does not work. SNMP data collection is used for active devices from all other vendors.
- Route Collection Priority: (Available in full NetMRI product license) This setting controls which collection method is attempted first when collecting route tables. Should the Route Collection Priority setting be set to SNMP (default), you will also need to pay attention to the Route Limit setting under Advanced Settings (. For more information, see NetMRI Advanced Settings). If NetMRI encounters a routing table with a table of entries beyond the Route Limit setting, SNMP collection for the current device will be stopped, and CLI collection for the routing table will be tried instead. When set to CLI with SNMP Fallback, NetMRI will try to use CLI commands to collect route tables from devices instead of immediately using SNMP. The CLI option may reduce data collection performance problems for routers with large route tables.