4+ years of experience with Layer 2 Switching protocols such as IP[v4|v6], TCP or UDP, STP, ECMP, 802.1[d|s|w], or 802.1x.
4+ years of experience with Layer 3 Routing protocols such as OSPF, BGP, and VRFs.
2+ years of experience with stateful firewalls, non-stateful filtering and packet inspection.
1+ years experience in programming or scripting to automate/build etc.
1+ years experience with VPNs (DVMRP, GRE, IPSec/SSL VPNs), Wireless (802.1a/b/g/n), Global and Local Server Load-Balancing (GLB/SLB) or Multicast (PIM-SM, MSDP, IGMP).