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Default Settings for Monitoring
The choices you make for "defaults" apply only to devices with interfaces, IP addresses, chassis, cards, SNMP agents (Management Addresses), Web Agents, Tracked Objects, Router Redundancy Groups, Node Sensors, or Physical Sensors that are not covered by any monitoring Interface Settings or Node Settings.
To establish default NNMi monitoring behavior:
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Navigate to the Defaults Settings tab.
- From the workspace navigation panel, select the Configuration workspace.
- Expand the Monitoring folder.
- Select Monitoring Configuration.
- Locate the Defaults Settings tab.
- To prevent NNMi from generating any traffic to Nodes that are not covered by Monitoring Configuration's Node Settings. See Enable SNMP and Web Polling of Node.
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Locate the Default Fault Monitoring group box.
- Configure the Default Fault Monitoring behavior for ICMP traffic (see Default Fault Monitoring table ICMP Fault Monitoring).
- Configure the Default Fault Monitoring behavior for NNMi (see Default Fault Monitoring table's Fault Monitoring).
- Configure the Default Fault Monitoring: interval (see Default Fault Monitoring: table Fault Polling Interval).
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(NNM iSPI Performance for Metrics) If the Network Node Manager iSPI Performance for Metrics Software is installed, locate the Default Performance Monitoring group box.
Configure the Default Performance Monitoring behavior (see and Default Performance Monitoring table).
Note Performance monitoring of a Virtual Machine (VM) requires the VM to be managed by an SNMP agent. In this case, NNMi counts the VM as one node, rather than 1/10 node when calculating license limits. For more information about licensing, see Track Your NNMi Licenses.
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By default, NNMi monitors only interfaces that are connected to other interfaces. When polling is enabled, NNMi automatically detects most connections. See Add or Delete a Layer 2 Connection for information about manual overrides.
Optional. If you want to expand default monitoring behavior to include unconnected Interfaces, indicate your choices in the Default Extend the Scope of Polling Beyond Connected Interfaces group box
- Optional. Configure the Default Change Detection Monitoring (see Default Change Detection Monitoring table).
- Optional. To establish custom monitoring behavior for one or more groups of interfaces, configure Interface Settings, see Interface Settings for Monitoring.
- Optional. To establish custom monitoring behavior for one or more groups of nodes, configure Node Settings, see Node Settings for Monitoring.
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Click
Save and Close. NNMi applies your changes. The next regularly scheduled monitoring cycle uses the new settings.
Caution When you establish monitoring configuration settings, NNMi must recalculate the settings for all affected objects. This can take some time and slow down your system. Consider making this change during a slow time in your network environment.
Attribute | Description |
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Enable SNMP and Web Polling of Node |
If If If you use Auto-Discovery, NNMi might detect Nodes and add them to the NNMi database as non-SNMP nodes. |
Attribute | Description | |
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ICMP Fault Monitoring | Enable Management Address Polling |
If Note In the Global Control section of the Monitoring Configuration form, the Enable State Polling attribute must be enabled, too. If
Changing the default monitoring settings for the management addresses takes effect immediately. To verify the change, see Verify the Monitoring Settings. |
Enable IP Address Fault Polling |
Note This monitoring option is useful for devices that do not support SNMP. By default, this feature is enabled for the "Non-SNMP Devices" Node Group. If Note In the Global Control section of this form, the Enable State Polling attribute must be enabled, too. If
Tip To turn off ICMP polling within a subset of your network environment, use the Communication Configuration workspace Region definitions. You can define your own Regions that identify any unreachable addresses in your management domain (for example, the private IP addressesThese are IPv4 addresses that can be reused in home and office local area networks (LANs). Following the standards set by RFC 1918 and RFC 4193 (10.*.*.*, 169.254.*.*, 172.16-31.*.*, and 192.168.*.*)). |
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Fault Monitoring | Enable Interface Fault Polling |
If By default, any connected interface is monitored for MIB-II ifAdminStatus and ifOperStatus. (ifAdminStatus is set by the device administrator. ifOperStatus indicates the operational status of interface health.) If you have unconnected interfaces that you want to monitor, expand NNMi monitoring behavior with the Poll Unconnected Interfaces and the Poll Interfaces Hosting IP Addresses attributes. Note The following attributes must also be enabled:
If
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Enable Card Fault Polling |
Use this attribute to poll fault metrics for cards. Card fault metrics include Administrative State, Operational State, and Standby State. Note Card Fault Polling is enabled by default. If If Tip NNMi uses the same polling interval set for the Fault Polling Interval. |
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Enable Chassis Fault Polling |
Use this attribute to poll fault metrics for chassis. Chassis fault metrics include Administrative State, Operational State, and Standby State. Note Chassis Fault Polling is enabled by default. If If Tip NNMi uses the same polling interval set for the Fault Polling Interval. |
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Enable Node Sensor Fault Polling |
Note Node Sensor Fault Polling is disabled here by default. Use this attribute to poll Node Sensor fault metrics. If If Tip NNMi uses the current setting for the Fault Polling Interval in combination with this setting. |
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Enable Physical Sensor Fault Polling |
Note Physical Sensor Fault Polling is disabled here by default. Use this attribute to poll for Physical Sensor faults on fan, power supply, temperature, and voltage. Only the health of the power supply and fan Physical Sensors are propagated to the Node level to affect Node Status. If If Tip NNMi uses the current setting for the Fault Polling Interval in combination with this setting. |
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Fault Polling Interval |
The time that State Poller waits between issuing queries to gather information for any of the following that are enabled: ICMP Polling, SNMP Polling, Poll Unconnected Interfaces, and Poll Interfaces Hosting IP addresses. The default Fault Polling Interval is 5 minutes, except for the Node Group named Microsoft Windows Systems which is 10 minutes. Note NNMi monitors SNMP agents (Management Addresses) according to this Fault Polling Interval, even if ICMP Polling, SNMP Polling, Poll Unconnected Interfaces, and Poll Interfaces Hosting IP addresses are all disabled. To prevent an SNMP Agent's address from being monitored, one of the following must be true: State Polling is disabled, current Communication Configuration settings turn off SNMP for the SNMP agent's address, the parent Node is set to Not Managed or Out of Service, or the parent node belongs to a Monitoring Configuration's Node Group with |
Attribute | Description | |
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Requires Network Node Manager iSPI Performance for Metrics Software (NNM iSPI Performance for Metrics). To populate performance data in the dashboard views or enhance NNM iSPI Performance for Metrics reports by sharing NNMi configuration settings, install the optional Network Performance Server (NPS). |
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LAN Performance Monitoring |
Enable Interface Performance Polling |
(NNM iSPI Performance for Metrics) Use this attribute to extend the range of polling data that NNMi collects. NNM iSPI Performance for Metrics uses the additional data in a series of performance reports. See Purchase Network Node Manager i Smart Plug-ins and More for more information. When enabled, network traffic increases on your network because NNMi gathers performance data about each member of this group on a regular schedule. If If Note The Enable State Polling field must be enabled, too. By default the performance of connected interfaces and addresses is monitored. If you have unconnected interfaces that you want to monitor, expand NNMi monitoring behavior by enabling Poll Unconnected Interfaces. |
WAN Performance Monitoring | Enable DSx Interface Performance Polling |
(NNM iSPI Performance for Metrics) Use this attribute to extend the range of polling data that NNMi collects. NNM iSPI Performance for Metrics uses the additional data in a series of performance reports. When enabled, network traffic increases on your network because NNMi gathers performance data about each member of the DSx Interfaces interface group on a regular schedule. See Interface Groups Provided by NNMi for more information. If If |
Enable SONET Interface Performance Polling |
(NNM iSPI Performance for Metrics) Use this attribute to extend the range of polling data that NNMi collects. NNM iSPI Performance for Metrics uses the additional data in a series of performance reports. When enabled, network traffic increases on your network because NNMi gathers performance data about each member of the SONET Interfaces interface group on a regular schedule. See Interface Groups Provided by NNMi for more information. If If |
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Enable ATM Interface Performance Polling |
(NNM iSPI Performance for Metrics) Use this attribute to extend the range of polling data that NNMi collects. NNM iSPI Performance for Metrics uses the additional data in a series of performance reports. When enabled, network traffic increases on your network because NNMi gathers performance data for each ATM Interface. If If Note
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Enable Frame Relay Interface Performance Polling |
(NNM iSPI Performance for Metrics) Use this attribute to extend the range of polling data that NNMi collects. NNM iSPI Performance for Metrics uses the additional data in a series of performance reports. When enabled, network traffic increases on your network because NNMi gathers performance data for each Frame Relay Interface. If If This option gathers the following types of metrics:
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Sensor Performance Monitoring | Enable Node Sensor Performance Polling |
Note Node Sensor Performance Polling is disabled here by default. (NNM iSPI Performance for Metrics) Use this attribute to poll Node Sensor performance. An NNMi administrator can set the threshold for Node Sensors related to the buffer, CPU, disk, and memory metrics. If If Tip NNMi uses the current setting for the Performance Polling Interval in combination with this setting. |
Enable Physical Sensor Performance Polling |
Note Physical Sensor Performance Polling is disabled here by default. (NNM iSPI Performance for Metrics) Use this attribute to poll for Physical Sensor performance on backplanes. An NNMi administrator can set thresholds related to Physical Sensor performance metrics for backplanes. The backplane's health is not propagated to the Node level to affect Node Status. If If Tip NNMi uses the current setting for the Performance Polling Interval in combination with this setting. |
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Performance Polling Interval |
(NNM iSPI Performance for Metrics) Use this field to set the time period that NNMi waits between issuing network traffic to gather performance data for the NNM iSPI Performance for Metrics. The default Performance Polling Interval is 5 minutes, except for the Node Group named Microsoft Windows Systems which is 10 minutes. |
Attribute | Description |
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Poll Unconnected Interfaces |
If Note The Enable State Polling field must be enabled, and SNMP polling of some type must be enabled (for example, Enable SNMP Fault Monitoring and Enable SNMP Performance Polling). If Tip Your discovery configuration choices might need to be adjusted to get the results you want. For example, to meet the “connected” criteria for interfaces in switches that do not have an IP address you must add the device to which the interface is connected as a discovery seed. See Specify discovery seeds. |
Poll Interfaces Hosting IP Addresses |
Note This monitoring option is useful for Router interfaces. By default, this feature is enabled for the "Routers" Node Group. If Note The Enable State Polling field must be enabled, and SNMP polling of some type must be enabled (for example, Enable SNMP Fault Monitoring and Enable SNMP Performance Polling). By monitoring the Interface (in addition to the IP address), NNMi can make more informed decisions about the health of each IP address associated with an unconnected interface. If Tip The Communication Configuration workspace provides a method of overriding this setting for specific Regions. You can define your own Region to easily turn off polling to any unreachable addresses in your management domain (for example, the private IP addressesThese are IPv4 addresses that can be reused in home and office local area networks (LANs). Following the standards set by RFC 1918 and RFC 4193 (10.*.*.*, 169.254.*.*, 172.16-31.*.*, and 192.168.*.*)). |
Poll Link Aggregation Interfaces (NNMi Advanced) |
If
Tip NNMi calculates the Aggregator status based on current status of all members. This means NNMi changes the status of the Aggregator when one member interface is down, even though the Aggregator is currently functioning well by using the other member interfaces. If |
Attribute | Description |
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Enable Number of Interfaces (ifNumber) Polling |
Tip For more information, see Detect Interface Changes. When enabled When disabled |
Enable Entity Change Time (entLastChangeTime) Polling |
When enabled When disabled |
Change Detection Polling Interval |
The time that State Poller waits between issuing queries to gather information for the Number of Interfaces ( The default Change Detection Polling Interval is 4 hours. |
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