What is orphan port(VPC) and why it is used ?

[tarunsakunia]

Please explain me the role of Orphan port in VPC.

[Reza Sharifi]

see link:

A non-vPC port, also known as an orphaned port, is a port that is not part of a vPC.

http://www.cisco.com/c/en/us/products/collateral/switches/nexus-5000-series-switches/design_guide_c07-625857.html#_Toc271759441

HTH