/mcpDescription Parameters Specifies the host name that you want to trace. hostname Command Modes Administrator (admin:) Requirements Command privilege level: 0 Allowed during upgrade: Yes Applies to: Unified Communications Manager and Cisco Unity Connection. utils network ipv6 ping This command allows you to ping an IPv6 address or hostname. utils network ipv6 ping destination [count] Syntax Description Description Parameters Specifies a valid IPv6 address or host name that you want to ping. destination Specifies the number of times to ping the external server. The default count equals 4. [count] Command Modes Administrator (admin:) Requirements Command privilege level: 0 Allowed during upgrade: Yes Applies to: Unified Communications Manager and Cisco Unity Connection. utils network name-service {hosts|services} cache invalidate This command clears the name service cache. utils network name-service {hosts \ services} [cache invalidate] Syntax Description Description Parameters Host services cache Hosts Services service cache Services Command Modes Administrator (admin:) Command Line Interface Reference Guide for Cisco Unified Communications Solutions, Release 15 and SUs 321 Utils Commands utils network ipv6 ping