/mcpset network name-service services cache-enable value Syntax Description Description Parameters The boolean value must be either yes or no. value Command Modes Administrator (admin:) Requirements Command privilege level: 1 Allowed during upgrade: Yes Applies to: Unified Communications Manager, IM and Presence Service on Unified Communications Manager, and Cisco Unity Connection. set network name-service services max-db-size This command sets the maximum allowed size for the service. set network name-service services max-db-size value Syntax Description Description Parameters Enter the value in number of bytes. value Command Modes Administrator (admin:) Requirements Command privilege level: 1 Allowed during upgrade: Yes Applies to: Unified Communications Manager, IM and Presence Service on Unified Communications Manager, and Cisco Unity Connection. set network name-service services negative-time-to-live This command sets the time-to-live (TTL) for negative entries or unsuccessful queries in the specified cache for service. So, using this command improves the performance if there are various files owned by user IDs (UIDs) and are unavailable in system databases. For example, files that are available in the Linux kernel sources as root. To reduce the cache coherency problems, the number of such files should be kept to the minimum. set network name-service services negative-time-to-live value Command Line Interface Reference Guide for Cisco Unified Communications Solutions, Release 15 and SUs 104 Set Commands set network name-service services max-db-size