79afe4ac_nfiguring_the_Blades___DocWiki__Parameter
[Default] n [Explanation] Specifies if the span should loop back locally for running diagnostics. [Possible Values] y = yes n = no (normal operation) [Parameter] 
Internal data loopback
Cisco Unified MeetingPlace Release 6.1 -- About Configuring the Blades - DocWiki