Changing Device Settings

To rename a device, type a new name in the Name field, and then click the Update Device button. You can also define the network through which the device will be managed by NetMRI, change its discovered device type, and change the device's data collection settings.

• For VRF-aware devices, you can change the Management IP address for the device by choosing it from the Management Address dropdown menu. The menu lists all IP addresses for the device, each shown with their associated network view and the collector by which the device was discovered. By default, the current management IP for the device is selected in the list. The listed management IPs fall within the discovery ranges of the Collector appliance or standalone appliance that manages the device. You can change the management collector for the device by selecting the IP address on the required collector. For more information, see Manually Changing Management Collector.

  By choosing a different Management Address, the associated NetMRI appliance uses the scan interface on which the Management IP is defined. This feature is useful for devices that participate in multiple network views, as it enables the administrator to define which network view the device is managed through. In many cases, the Management Address list shows only a single network view such as the default Network 1. In these cases, all available addresses exist only in the single network view.
  
  

• For VRF-ignorant devices, this page shows a Management Network View drop-down menu. The list shows all network views for the device's associated Collector or standalone NetMRI appliance, that each has an assigned scan interface. You may see multiple network views. In cases of this type, possible route-leaking may be taking place from other VRF-aware devices that makes it possible for the current device to be managed from within two or more VRFs; though the device is VRF-ignorant, you can choose the network for which you consider the device to be a member for management purposes.

  • If the NetMRI appliance manages only one network, the Management Network View drop-down will not appear.

  • When the selected device in the Device Viewer is configured to allow only one of its interfaces as its management address, the Management Address drop-down will not appear. Therefore, it is possible for a device to show neither menu or to show both.

SysAdmin users can also change a device management IP using the change_device_management_ip API call. For example: your_NetMRI_URI/api/docs#change_device_management_ip. For more information, refer to the online NetMRI API documentation.

NetMRI attempts to determine the device Type when the device is first discovered. If this determination is incorrect, you can override the device type as described above. To change the device type determined by NetMRI, open the Type list, click the correct device type, and then click the Update Device button.

If a device matching the new type already exists for this IP address, NetMRI deletes the current device and no further action is allowed in the current Device Viewer window.

The Type list shows only the device types known to NetMRI. If no appropriate type exists in the list for the current device, please contact Infoblox Technical Support so they can add that type to the automatic discovery process.

To stop collecting SNMP data from the device, set the SNMP Status option to Disabled, and then click Update Device.

• You can disable SNMP data collection if a specific device has a memory leak in its SNMP process, or if you do not need detailed information about the device. If disabled, existing network data (if any) remains available for analysis and reporting, and no additional monitoring data is added until this option is enabled.

• If SNMP Status is enabled for a device, SNMP collection will also be determined by collection settings for groups and for the entire network.

To use SNMP debugging as a troubleshooting aid, select Enable for SNMP Debug.

To use SDN debugging as a troubleshooting aid, select Enable for SDN Debug.

To enable or disable the option CLI polling in privileged mode (i.e. Enable mode) for this device in particular, select the necessary option for Privileged Polling. This setting overrides the device group's CLI polling in privileged mode setting. You can also specify to use the Group Default setting here.

To show or hide passwords, in the Show Passwords field, select Yes (to show) or No (to obscure).

To change the community string, type the correct string in the RO Community field, and then click Update Device.

NetMRI automatically attempts to determine the SNMP community string for each discovered device, and periodically checks the community string to determine whether the string has changed.

If the SNMP community string cannot be determined, enter it in the RO Community field as described above, or add it on the Settings icon > Setup > Credentials page.

To specify the SNMP version understood by the device, choose the correct SNMP Version option, and then click Update Device.

To specify whether a configuration change is authorized for the device, select the appropriate Config Change option, and then click Update Device.

By default, Config Change is set to Group Default (i.e., configuration authorization is inherited from the group settings). If the device's Config Change setting should differ from the group, select Locked or Unlocked, as appropriate.

To enter the correct reboot time, type the time (in YYYY-mm-dd hh:min:ss syntax) in the Reboot Time field, and then click Update Device.

The SNMP sysUpTime counter wraps back to zero at about 497 days, making it difficult to determine exactly how long the device has been operating. Use the Reboot Time field to record the true uptime, as described above.

To remove the device from the network database, click Delete Device, and then click OK in the confirmation window. This deletes the device and closes the Device Viewer window.

When a network device is not responding, NetMRI generates an issue indicating the device is down. If the device has actually been removed from the network, or its address has been changed, remove the device from the network database as described above.

If a non-network device (e.g., workstation, printer) does not appear in the network-wide ARP table during a given day and NetMRI cannot contact during that day, the device is automatically removed from the database. Further, any device (regardless of type) is removed from the database if the appliance has not been able to contact it for seven days in a row.