Darshan Singh Yadav
SDWAN Engineer || Routing & Switching|| CCNA || Network Monitoring & Troubleshooting || HCLTech || POC || Specialist
- Role
- Specialist at HCLTech
- Location
- Mumbai, MH, IN
- LinkedIn followers
- 500 followers
About Darshan Singh Yadav
Monitoring and troubleshooting of LAN / WAN networks. Monitor, troubleshoot, and escalate production problems affecting network infrastructure. Co-ordinating with Carriers and working on troubleshooting on WAN links. Escalating issues at carrier end and driving issues till resolution. Troubleshoot BGP, EIGRP & OSPF connectivity issues. Basic wireless device monitoring & troubleshooting of Cisco Access points and WLC. Troubleshooting & working on Cisco 3750, 6500, 2800, ASR & Nexus 5596 series devices. Troubleshooting and coordinating with Cisco global TAC Team for various issues. Generating RMA and fixing/replacing and configuring faulty network devices.
Experience
Specialist
Oct 2024 — Present · IN
Brief Introduction – SD-WAN Engineer ProfileResponsible for deploying, managing, and maintaining Software-Defined Wide Area Network (SD-WAN) infrastructures for enterprise or retail environments.Proficient in vendor solutions like Cisco Viptela, Meraki, Fortinet, Versa, or VMware SD-WAN.Troubleshooting and Configuring Router Configuration IssuesWorks with BGP, OSPF, static routes, and NAT policies for WAN optimization.Resolving and Syncing the Cradlepoints (4G/5G Routers)Manages Cradlepoint LTE/5G routers for backup WAN connectivity.Resolves issues like SIM card detection, connectivity drops, and VPN tunnel failure.Syncs devices to NetCloud Manager or similar platforms for centralized monitoring and configuration.Configuring Switches as per RequirementPerforms switch configurations based on network segmentation, VLAN tagging, or port-channel setups.Manages switch stack configurations and upgrades firmware as required.Troubleshooting the Hard Down IssueInvestigates critical \"Hard Down\" conditions where connectivity is entirely lost at branch or store locations.Uses diagnostic tools like ping, traceroute, NMS alerts, syslogs, and SNMP traps to isolate the issue.Coordinates with ISPs or field engineers for line faults, hardware replacements, or circuit restoration.Rebooting and Assisting Customers to Restore Access on DevicesAssists customers in safely rebooting routers, switches, and APs to recover from hang or degraded performance states.Provides remote or guided assistance for accessing console or out-of-band management.Ensures services like wireless SSIDs, DHCP scopes, NAT translations, and LAN/WAN access are operational post-reboot.Access Points and Wireless TroubleshootingDiagnoses AP disconnections, SSID broadcast failures, and coverage gaps.Checks WLC (Wireless LAN Controller) registration, RF settings, and client association logs.
Education
Dr. Babasaheb Ambedkar Marathwada University (BAMU), Aurangabad
Bachelor of Engineering - BE, Electrical, Electronics and Communications Engineering
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