Any unsolicited resumes sent to Phoenix Contact, including unsolicited resumes sent to a Phoenix Contact mailing address, fax machine or email address, directly to Phoenix Contact employees, or to Phoenix Contact's resume database will be considered Phoenix Contact property. Knowledge and understanding of the OSI Network Reference Model, Layer 2 and Layer 3 Switching, Spanning Tree Protocols (STP, RSTP, MSTP), TCP/IP, and Routing Protocols (RIP and OSPF) is required.