Responsible to troubleshoot and configure WiMAX ASN/CSN network.Ensuring maximum availability of core network (routers, firewall, aggregation switches, Eudemon 1000 Firewall & Servers).Worked on NE 40-8 & NE 40-X routers S6500, S7800 and S3900 Switches.Working on Huawei O&M Monitoring tools (M2000, N2000 and T2000) & Orion.Managing IP-MPLS and OSPF based Core Network.Monitoring bandwidth usage/network outages via Network Monitoring tool.Configuration of Huawei's ASN GW9770, NE40E router, L3 switches & Eudemon FWs (Modification of ACLs, NAT routing etc).Analyzing (call, R6 & R3 interface) traces taken from Huawei’s LMT (for WASN9770) for the resolution of critical issues.Built and Managing DNS (Domain Name Server) Identification & Escalation of network faults to the vendor & field engineers, continuous follow up.Keeping an eye on the KPIs of DBS3900 base station & MW transmission. During Fault localization & Escalation (opening Trouble Tickets) of Access & Core Network faults to the Huawei’s TAC. Generation of daily & weekly reports regarding network stability.Follow-up on scheduled Preventive Maintenance of Core equipment’s.Projects:• Implementation of BGP peering, maintaining and troubleshooting• MPLS L3VPN based ring routers optimisation; enhancing scalability & resilience• IPv6 deployment strategies and practices• Per Base Transmission Station – vlan segregation and implementation• Audit and PAT of WiMAX core• Optimising, redesigning and structuring according to the standard best practices of the core network entities• Successful integration of domain name server (dns), network node monitoring through cacti, syslog server, streaming server, game server & solarwinds 9.5 network monitoring tool in the production environment