Search for	Example	Results
A single word	`cat`	Topics that contain the word "cat". You will also find its grammatical variations, such as "cats".
A phrase. You can specify that the search results contain a specific phrase.	`"cat food"` (quotation marks)	Topics that contain the literal phrase "cat food" and all its grammatical variations. Without the quotation marks, the query is equivalent to specifying an OR operator, which finds topics with one of the individual words instead of the phrase.

Search for	Operator	Example
Two or more words in the same topic	`AND` `and` `+` (plus symbol) `&` (ampersand)	`cat AND dog` `"cat food"+milk` `"cat food"&"dog food"`
Either word in a topic	`OR` `or` `\|` (pipe)	`cat OR dog` `cat \| dog`
Topics that do not contain a specific word or phrase	`NOT` `not` `!` (exclamation point)	`NOT cat` `! dog`
Topics that contain one string and do not contain another	`^` (caret)	`cat ^ mouse`
A combination of search types	`( )` parentheses	`cat + (dog \| mouse)` `cat \| dog + (! mouse)`

Network Node Manager i Software10.30

Use > Access Device Details > Interface Form > Interface Form > Interface Form: Performance Tab (NNM iSPI Performance for Metrics)

Interface Form: Performance Tab (NNM iSPI Performance for Metrics)

[This is the Context-Sensitive Help topic for the Interface form, Performance tab.]

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).

The Interface Form provides details about the selected network interface.

Tip This information is also visible in the Monitoring workspace, Interface Performance view.

For information about each tab: See Also

The Performance tab displays data if the Network Node Manager iSPI Performance for Metrics Software software is installed and configured within your environment.

The icons on the Performance tab indicate the value from the most recent polling interval for interface performance states:

High - The High threshold was crossed.

Nominal - Measured within healthy range. (Or no thresholds are being monitored.)

Low - The Low threshold was crossed.

None - The value returned was zero.

Abnormal Range - This interface is abnormal based on the computed baseline for the specified threshold.

Normal Range - This interface is normal based on the computed baseline for the specified threshold.

The following values indicate NNMi could not gather the required data:

Agent Error – Indicates an error was returned in response to the query.

No Polling Policy - No polling policy exists for this monitored attribute.

Not Polled - Indicates that this attribute is intentionally not polled, based on current Monitoring Configuration settings, current Communication Configuration settings, or because the parent Node is set to Not Managed or Out of Service. This object attribute might or might not have an associated polling policy.

Not Provided — The device does not support providing information for this monitored attribute.

Unavailable - The agent responded with a value outside the range of possible values or returned a null value.

Unset – Currently not used by NNMi.

Tip NNMi can generate incidents based on threshold results See Also

Optional: The NNMi administrator can configure thresholds for the metrics described in the following list. If you want to see the threshold configuration settings for the currently selected Interface, click Actions → Configuration Details → Monitoring Settings, then scroll down to the Count-Based Threshold Settings table and Time-Based Threshold Settings table:

FCS LAN Error Rate

Local Area Network interfaces only.Threshold based on the percentage of incoming frames with a bad checksum (CRCCyclic Redundancy Check value) compared to the total number of incoming frames. Possible causes include collisions at half-duplex, a duplex mismatch, bad hardware (NICNetwork Interface Controller, cable, or port), or a connected device generating frames with bad Frame Check Sequence.
FCS WLAN Error Rate

Wireless Local Area Network Interfaces only. Threshold based on the percentage of incoming frames with a bad checksum (CRCCyclic Redundancy Check value) compared to the total number of incoming frames. Possible causes include wireless communication interference, bad hardware (NICNetwork Interface Controller, cable or port), or a connected device generating frames with bad Frame Check Sequence.
Input Discard Rate

Threshold based on the percentage of the interface's discarded input packet count compared to the total number of packets received. Packets might be discarded because of a variety of issues, including receive-buffer overflows, congestion, or system specific issues.
Input Error Rate

Threshold based on the percentage of the interface's input packet error count compared to the total number of packets received. What constitutes an error is system specific, but likely includes such issues as bad packet checksums, incorrect header information, and packets that are too small.
Input Queue Drops Rate

Threshold based on the percentage of the interface's dropped input packets compared to the total number of packets received. Possible causes include the input queue being full.
Input Utilization
Threshold based on the percentage of the interface's total incoming octets compared to the maximum number of octets possible (determined by the MIB being used to query ifSpeed of the device and whether the host system supports high-speed counters for interfaces).

Sometimes the ifSpeed value returned by the device's SNMP agent is not accurate and causes problems with thresholds. If your NNMi role allows, you can override the ifSpeed reported by the SNMP agent:
1. Open the problem interface's Interface form.
2. Select the General Tab.
3. Locate the Input/Output Speed section.
4. Change the Input Speed or Output Speed setting.
Output Discard Rate

Threshold based on the percentage of the interface's discarded output packet count compared to the total number of outgoing packets. Packets might be discarded because of a variety of issues, including transmission buffer overflows, congestion, or system specific issues.
Output Error Rate

Threshold based on the percentage of the interface's output packet error count compared to the total number of outgoing packets. What constitutes an error is system specific, but likely includes such issues as as collisions and buffer errors.
Output Queue Drops Rate

Threshold based on the percentage of the interface's dropped output packets compared to the total number of outgoing packets. Possible causes include all buffers allocated to the interface being full.
Output Utilization
Threshold based on the percentage of the interface's total outgoing octets compared to the maximum number of octets possible (determined by the MIB being used to query ifSpeed of the device and whether the host system supports high-speed counters for interfaces).

Sometimes the ifSpeed value returned by the device's SNMP agent is not accurate and causes problems with thresholds. If your NNMi role allows, you can override the ifSpeed reported by the SNMP agent:
1. Open the problem interface's Interface form.
2. Select the General Tab.
3. Locate the Input/Output Speed section.
4. Change the Input Speed or Output Speed setting.

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