VPLS can be used to transport Ethernet frames to and from multiple, geographically dispersed sites belonging to a customer Virtual Private Network (VPN). The Provider Edge (PE) devices connecting the customer sites provide functions similar to a Layer 2 switch.
Equivalent Ranks to an Army Master Sergeant A Master Sergeant is a Noncommissioned Officer, with a military paygrade of E-8. The civilian equivalent of this military rank is roughly GS-6 under the federal government's General Schedule payscale.
Army Promotion to E-5 Sergeant A Sergeant is a Noncommissioned Officer in the United States Army at DoD paygrade E-5. This page describes how the Army determines who is eligible for the promotion list to Sergeant.