Network Lead Engineer
Verizon
Total years of experience :14 years, 9 Months
•Failover designing of CUCM, Unity Connection & IM-Presence version 10.5 between the Data Centers
•Configuration of Cisco ASA firewalls on Verizon cloud for cloud based Cisco UC customers
•Cisco 2901 CUBE gateways implementation for incoming/outgoing PSTN calls for branch offices
•Implementation of voice gateways Cisco 4321 for incoming/outgoing PSTN calls via ISDN
•Troubleshooting of IPSec VPN for DNS queries and interesting traffic
•OSPF routing configuration between the data center and branch offices subnets
•AnyConnect VPN configuration on Cisco ASA 5585-X firewall for remote users
•Creation of local users in Cisco ACS (AAA) server and integration of VPN profiles with AAA
•SRST failover configuration/testing by removing the UC network routes from the WAN router
•Configuration/implementation of Cisco UC Apps (CUCM, CUC, IM&P) for cloud solution
•Data/Voice subnets routing for customer Cisco routers (2900, 3900) to BT MPLS network
•Access list & NAT configuration on Cisco ASA firewall for customers subnets
•Configuration of Local Voice gateway (CUBE) using Cisco 2900 series routers
•Routing & IPSec VPN configuration between Cisco routers & Cisco ASA 5500X firewalls
•Troubleshooting Layer3/Layer4 issues on Cisco ASA firewalls.
•Troubleshooting of PSTN calls, phone registration and call transfer issues on cloud Cisco Unified Communication network
•Assist design team in network designs for Cisco UC apps redundancy/failover
•Configuration/Implementation of Cisco UC applications (CUCM, CUC, IM&Presence)
•Involved with architecture design (LLD/HLD) of hosted UC solution based on a virtualized infrastructure
•Configuration/implementation of LBIBO Cisco CUBE for incoming/outgoing PSTN calls
•VPN configuration from CPE (Cisco 19xx, 29xx) to data center firewalls via GSM 4G
•High availability design for call processing, voicemail and presence server over LAN and
WAN
•Liaising with customers to gather accurate requirements for a given project.
•Drawing up proposals, high/low level designs and PoC demonstration with customer requirements.
•Attending customer sites and implementing proposed solutions as per design.
•Providing assistance to sales and account management teams in the form of technical presales.
•Designing and configuration of Unified Network consisting of 50 branches, with PSTN
failover and call processing redundancy.
•Configuration and integration of Cisco virtualized UCS C200 series server for CUCM,
Unity Connection, IM&Presence and Unified Contact Center Express.
•Configuration and installation and of Cisco Call Manager Express 8.x, 9.x
•Designing and configuration of multiple sites for IPSec site-to-site VPN using Cisco ASA
•Configuration of intersite calling using site-to-site VPN.
•Configuration & implementation of VPNS (Site-to-Site, Remote Access and AnyConnect)
•NATing and port forwarding configuration for various internal servers.
•Configuration and implementation of SSL VPN for remote Cisco IP Phones using ASA 5510 with CME 8.6 and CUCM (8.x, 9.x)
•Integration of UCCX with CUCM and scripting on UCCX version 9.x
•Implement dynamic routing (OSPF, EIGRP) for 50+ customer sites for voice & data subnets
•IPT deployment with voice SRST and gateway.
•Implementation of multiple default gateway using redundancy protocol (HSRP & GLBP)
•Automatic WAN failover configuration using multiple lease lines
•Configuration of NAT and security policies for subnets and ports using Palo Alto (2020, 3020) firewalls
•Implementation of RADIUS (AAA Server) using Cisco ACS for AnyConnect VPN
•Implementation of Cisco Wireless network via WLC (2500, 2100) and AP (1100, 1200)
•Troubleshooting skills on general networking issue VLANs, DNS, DHCP, and TCP/IP
• Online technical support for Zyxel routers, switches, firewalls
• Escalation and follow up of the tickets on incidents of configuration issue
or hardware problem.
•Configuration and troubleshooting of Zywall USG (5, 50, 100, 200, 300) related issues.
•Configuration and troubleshooting of Zyxel ADSL routers related issues
•Configuration and troubleshooting of Zyxel Access Points related problems.
•Site-to-site VPNs configuration and troubleshooting on firewall devices.
•Port-forwarding configuration on the ADSL routers for different applications.
•Policy based routing configuration and troubleshooting on Zyxel routers and firewalls
•Installation of DSL lines from exchange to the client end.
•DSL broadband configuration using Netgear and Linksys routers.
•Face-to-face interaction with the customer for the broadband troubleshooting.
•Configuration of OSPF protocol at the customer side.
•Layer 3 configuration on 3750 & 6509 catalyst switches using fiber module.
•Configuration of GRE over IPSec on (Cisco 1800, 2800, 3600, 7200) routers.
•Configuration of the CE routers for MPLS network.
•Implemented WEP, WPA, and WPA2 data encryption for wireless network and 802.1 x for the wired LAN network