Good knowledge of Spanning-tree protocols (PVST,MSTP,RSTP), QOS, VPN, NAT, VoIP, IPSec, Multicast, DNS services, MPLS networks, network protocols (Ethernet, TCP/IP, SNMP, VLAN Trunking), and routing protocols (BGP, OSPF). Additional details : • Provides 24x7 operations support of networking components through monitoring and problem resolution for all global network services (coax/fiber/wireless) connectivity, voice, data, SD-WAN, and security services.