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Download Junos® OS CLI User Guide
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CLI User Guide Verification Confirm that the configuration is working properly. • Checking Group Inheritance with Conditional Data on page 222 Checking Group Inheritance with Conditional Data Purpose Action Verify that conditional data from a configuration group is inherited when applied. The show | display inheritance operational command can be issued with the when data to display the conditional inheritance. Using this example, you could issue one of these commands to determine that the conditional data was inherited: user@host> show | display inheritance when model mx240 user@host> show | display inheritance when chassis lcc0 user@host> show | display inheritance when routing-engine re0 user@host> show | display inheritance when member member0 user@host> show | display inheritance when node node0 user@host> show | display inheritance when time 9 to 5 Related Documentation • Understanding Junos OS Configuration Groups on page 198 • Creating a Junos OS Configuration Group on page 199 • Applying a Junos OS Configuration Group on page 201 • Using Conditions to Apply Configuration Groups Overview on page 219 Improving Commit Time When Using Configuration Groups Configuration groups are used for applying configurations across other hierarchies without re-entering configuration data. Some configuration groups specify every configuration detail. Other configuration groups make use of wildcards to configure ranges of data, without detailing each configuration line. Some configurations have an inheritance path that includes a long string of configurations to be applied. When a configuration that uses configuration groups is committed, the commit process expands and reads all of the configuration data of the group into memory in order to apply the configurations as intended. The commit performance can be negatively impacted if many configuration groups are being applied, especially if the configuration groups use wildcards extensively. If your system uses many configuration groups that use wildcards, you can configure the persist-groups-inheritance statement at the [edit system commit] hierarchy level to improve commit time performance. Using this option allows the system to build the inheritance path for each configuration group inside the database, instead of in the process memory. This can improve commit time performance. However, it can also can increase the database size by up to 22 percent. 222 Copyright © 2014, Juniper Networks, Inc.
