RAGHAV TREHAN

• Implement and Support LAN/WAN using, devices
• Working on troubleshooting of complex LAN/WAN infrastructure
• Perform upgrade and maintenance of network devices
• Handling the LAN & Enterprise infrastructure
• Implement new solutions and improve resilience of the current environment
• Gained extensive knowledge in data entry, analysis and reporting.
• Maximize network performance by monitoring performance, troubleshooting network problems and outages, scheduling upgrades and collaborating with network architects on network optimization
• Undertake data network’s fault investigation in local and wide area environments using information from multiple sources
• Communicated with vendors to resolve network outages and periods of reduced performance
• Designed and implemented networks in collaborations with project engineers
• Troubleshoot and maintain all networking devices and infrastructure across enterprise including Switches, Routers and Firewalls.
• Completed paperwork, recognizing discrepancies and promptly addressing for resolution.
• Demonstrated creativity and resourcefulness through the development of innovative solutions.

• Troubleshoot and hands on experience on security related issues on Palo-Alto, Asa
• Perform administration on Palo-Alto NGFW, creating policies, rules, users, VPN connections etc
• Implementation and management of network and security devices globally (firewalls, routers, switches)
• Handling changes of device configurations as per the requirement
• Creation of process, technical documentation
• Handling incident manager system, change management system and problem management ticketing system
• Coordinate with various teams, this includes and users computing, patch management network security team to roll out any changes/patches or configuration changes that might be required or incidence response
• Evaluate the risks and develop control measures
• Malware analysis, reporting and presentation to management
• Running scan within and perimeter devices to look for vulnerability and engaging devices owners for recommended patching.
• Paid attention to detail while completing assignments.
• Demonstrated strong organizational and time management skills while managing multiple projects.

• Vodafone Network Management
• Problem Management Roles and Responsibilities:
• Utilized problem-solving skills to reduce or eliminate company expenses.
• Defined problems to make decisions and moved forward to support quick resolution.
• Subject matter expert for Incident and problem management
• Liaise with the customer as focal point for all reported issues
• Drive weekly/monthly PIR Calls with stake holders and customers
• Immediate response to the network events observed by proactive monitoring
• Ensure 100% uptime of the all the devices in network
• Provide technical direction and coordination to the resolver groups involved
• Creating post incident report (PIR) for major incidents
• Open Bridge calls (Technical and Management Bridges)
• Updating and removing IVR when required
• Creating post incident report (PIR) for major incidents
• Create and send all the reports on time and chair Morning Prayer Call
• Provide appropriate inputs to the problem management process, RCA preparation
• Drive group chats and bridge calls effectively to resolve incidents
• Analyze tickets assigned to Onsite and prepare knowledge base to as to improve FCR
• Maintain and update Service Catalogue with regular updates and additions
• Coordinate High impact changes
• Usage of Escalation matrix appropriately to get appropriate level of focus from technical teams and business
• Prepare daily open SLA report and monthly review calls
• Also involved in service transition of automation tool Amelia for process specific activities
• Assist with configuration management implementation, Release management implementation, and operational readiness review implementation
• Actively work to fine tune problem management module in Service now/Remedy and test changes in development environment
• Run and manage numerous problem management related reports
• Build a strong relation with technology and business partner; develop your network
• Perform the management of both reactive root cause analysis (RCA) and proactive trend analysis
• Production of statists and reports to demonstrate performance of the problem management process
• Provide support and assistance to other operations team members’ including participate in weekly lead meetings
• Coordinate with global providers and communicate with them for service improvement plans
• Perform and analyze incident management reports to perform problem management reviews and RCA’s
• Keep track to active Risks and track them in Risk register
• Recording of Known Errors to support other Service Management processes
• Higher availability & quality of products & services by reducing the number and duration of incidents that occur;
• Mitigate the reactive nature of incident management by looking for the root cause of Incidents and providing workarounds or permanent resolutions;
• Reduced expenditure on workarounds that are not suitable or do not work
• Provides information (via Known Error Management and Knowledge Management) that can be used to speed up incident resolution time
• This results in less downtime and less disruption to business-critical systems
• Actively participate in customer service review calls and update higher management on current issues
• The availability & quality of products & services are continually improved
• Change Management Roles and Responsibilities:
• Apply a structured methodology and lead change management activities
• Assess the change impact
• Complete change management assessments
• Create change management strategy
• Identify, analyze, prepare risk mitigation tactics
• Identify and manage anticipated resistance
• Consult and coach project teams
• Consulting on business change initiatives, and enabling project teams to follow a standard approach to implementing change
• Conduct daily change review call with Customer
• Identifying how changes impact our customers
• First Line Networks for Tier 1 customers:
• WebEx meeting with Users to resolve RSA Token related issues
• Interacting with Field Engineers and End Users to identify the fault in LAN segment relating IP
• Phone, PC’s, Chip and PIN machine
• Troubleshooting switching issue relating VLAN, VTP, Spanning tree, HSRP
• Identifying and providing solution for DSL and Ethernet related issues
• Responsible for coordinating with the vendors and ISPs to resolve the issues
• Responsible for root cause analysis and giving suggestions to the customer for optimizing the network performance
• Represent the team while leading a Sev1 and Major incident on technical bridges
• Instrumental in resolving the issues with the SLA agreements with the customer
• Providing 24
• 7 network support and ensuring the successful delivery of business critical and real time application
• Configuring access servers, and Implementing security policies using ACL, Firewall
• Configuration of Access points using Cisco Meraki and troubleshooting wireless issues Network Monitoring and Diagnostics:
• Working on Network Management tools like Telnet Relay, NetFlow, Netcool Gold, Stable-net , Magic, and Cisco Prime
• Notifying for Changes and activities, sending start and end Notifications
• Proactively raising fault with correct priority and assigning to L1 team with basic checks
• Informing client over raised fault and progress
• Providing support to L1 and L2 team to ensure speedy resolution with help of requested information
• Utilized problem-solving skills to reduce or eliminate company expenses.

· WebEx meeting with Users to resolve RSA Token related issues

· Interacting with Field Engineers and End Users to identify the fault in LAN segment relating IP

· Phone, PC’s, Chip and PIN machine

· Troubleshooting switching issue relating VLAN, VTP, Spanning tree, HSRP

· Identifying and providing solution for DSL and Ethernet related issues

· Responsible for coordinating with the vendors and ISPs to resolve the issues.

· Responsible for root cause analysis and giving suggestions to the customer for optimizing the network performance.

· Represent the team while leading a Sev1 and Major incident on technical bridges.

· Instrumental in resolving the issues with the SLA agreements with the customer

· Providing 24*7 network support and ensuring the successful delivery of business critical and real time application.

· Configuring access servers, and Implementing security policies using ACL, Firewall

· Configuration of Access points using Cisco Meraki and troubleshooting wireless issues.

• Provided configuration recommendations and assistance in customer deployment.
• Analyzed and recommended solutions and upgrades to services to streamline processes.
• Worked closely with customers to identify business costs and benefits of implementing computing solutions.
• Maintained stable operation of multiple clients' computer networks.
• Mitigated risk by analyzing complex computer systems to assess vulnerabilities.

• Managed, tracked, and coordinated problem resolution and escalation processes.
• Performed troubleshooting for Juniper, Cisco, and packet analysis.
• Troubleshot complex multi-vendor network service provider issues.
• Provided network support services for devices such as hubs, bridges, routers, and other hardware.
• Collaborated with vendors to identify best options for optimizing network performance.
• Liaised with stakeholders to keep project goals and deadlines on target.
• Configured and troubleshot VoIP and multi-media distributed systems and platforms.