Ranjith Vemmarathil

WORK HISTORY

SKILLS

ABOUT RANJITH VEMMARATHIL

Good Knowledge on UMTS and LTE call flow and protocols GTPV1, GTPV2 and DIAMETER.Good concept of Handover call flows involving 3G-4G and end to end QOS in LTE and implemeting the same in the LIVE networks. Configuration, Integration and testing of EPC interfaces( S1-U/S11/S10/S5-S8) in Ericsson PGW based on Juniper M120 platform and EPG-SSR platform.Designing implementation and testing of Deep Packet inspection( DPI) and Service aware based Charging concept in Ericsson PGW. Optmization of user payload traffic by implementing DPI feature with minimal affect in PGW node.Configuration and performing testcases of Gx and Gy interfaces in Ericsson PGW. Designing and testing of PCEF invloving Deep packet inspection and classifying the packets and traffic to different rating groups, access control rules • Designing and testing of Firewall filters in theEPG M120 for security purpose by categorizing the different interfaces under different security zones(Trust, Untrust and DMZ).Good concept of End to End QOS in LTE and designing of QOS in PGW both in APN level and Network layer level.MOP Preparation and execution of Upgradation activity in Juniper M120 platform to support LTE. Managing and troubleshooting IP MPLS backbone network and firewall in BSNL Phase V project. Prepare configurations of MPLS Backbones (MPBN Network)for PE, P routers, Lan Switches of MPLS backbone and Modify according customer\'s time to time requirement for Huawei High End routers NE 40E.Configuration of OSPF, BGP,L3 VPN in Huawei MPLS Backbone network for BSNL and AIRTEL operators.