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

Administer > NNMi Communications > Tune Communications

Tune Communications

Reduce authentication failures

If NNMi is generating too many authentication traps during discovery, configure smaller regions or specific nodes with smaller groups of access credentials for NNMi to try.

Tune timeouts and retries

When NNMi attempts to contact a device using SNMP during discovery, the communication configuration determines whether NNMi can gather the necessary device information. When the communication configuration does not include the correct SNMP community strings, or if NNMi is discovering non-SNMP devices, NNMi uses the configured settings for SNMP timeouts and retries. In this case, large timeout values or a high number of retries can negatively affect the overall performance of discovery. If your network contains devices that you know respond slowly to SNMP/ICMP requests, consider using the Regions or Specific Node Settings tabs on the Communication Configuration form to fine tune the timeout and retry values for just these devices.

Reduce default community strings

Having a large number of default community strings can negatively affect discovery performance. Instead of entering many default community strings, fine tune the community string configuration for particular areas of your network by using the Regions or Specific Node Settings tabs on the Communication Configuration form.

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