Analysis Skills, Automation, BGP, BGP Routing Protocol, Cisco Network Systems, Cross-Functional, DHCP (Dynamic Host Configuration Protocol), DNS (Domain Name System), Failover, Firewalls, High Availability, IPsec (IP Security), Identify Issues, Incident Response, Information/Data Security (InfoSec), Local Area Network (LAN), Multicast, NAT (Network Address Translation), Network Administration/Management, Network Architecture/Engineering, Network Operations Center, Network Performance/Analysis, Network Support, Open Shortest Path First Protocol (OSPF), Operating Systems, Operational Support, Performance Tuning/Optimization, Personal Area Network (PAN), Problem Solving Skills, Production Support, Production Systems, QoS (Quality of Service), Radio Frequency, Remote Access, Root Cause Analysis, Routing Protocols, TCP/IP (Transmission Control Protocol/Internet Protocol), VLAN (Virtual Local Area Network), VPN (Virtual Private Network), Wide Area Network (WAN), Wireless Communications, Wireshark (Ethereal)