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gunasheela112-lab/README.md

Hi, I'm Gunasheela 👋

Networking Enthusiast | Network Engineering | Security | Cloud | Data Analytics
Cisco | Wireshark | Python | Azure Fundamentals

I'm a Computer Science Engineering student building hands-on skills in networking, with secondary interests in cybersecurity, cloud, and data analytics.

My main focus is understanding how networks are designed, configured, verified, and troubleshot — from Cisco switching and routing labs to packet analysis and network diagnostics.

🎯 Focus Areas

Primary — Networking

  • TCP/IP, subnetting, VLANs, routing & switching
  • Cisco IOS and Cisco Packet Tracer
  • STP / Rapid PVST+, HSRP, EtherChannel
  • DHCP, DNS, NAT/PAT, ACLs
  • IPv4 & IPv6
  • SSH, NTP and network troubleshooting
  • Wireshark packet analysis
  • Network resilience and traffic analysis

Secondary — Cybersecurity

  • Network segmentation and Layer 2 security
  • Port Security, BPDU Guard, DHCP Snooping & DAI
  • Network diagnostics and security auditing
  • Rule-based network anomaly detection

Secondary — Cloud

  • Cloud computing fundamentals
  • Cloud networking concepts
  • Microsoft Azure fundamentals
  • Azure cloud services and core concepts
  • Application deployment and hosted services
  • Container and virtualization fundamentals

Secondary — Data Analytics

  • Python, Pandas, NumPy
  • Exploratory data analysis and visualization
  • Matplotlib / Seaborn
  • Scikit-learn and predictive modeling
  • Operational and security-data analysis

🚀 Featured Projects

Project What it demonstrates
Enterprise Network Infrastructure Multi-VLAN enterprise network with inter-VLAN routing, HSRP, Rapid PVST+, ACLs, DHCP, NAT/PAT and DNS
Cisco L2 Security & Redundancy Lab LACP EtherChannel, Rapid PVST+, Port Security, BPDU Guard, DHCP Snooping and DAI
Cisco Network Administration & Troubleshooting Lab IPv6, SSH, NTP, EtherChannel and deliberate fault-isolation exercises
Wireshark Network Traffic Analysis TCP, ARP, ICMP and DNS packet analysis with practical troubleshooting
NetVanguard Python-based network diagnostics, concurrent TCP auditing and security risk classification

Data & Analytics

🛠️ Tools

Python C SQL Cisco IOS Cisco Packet Tracer Wireshark Git GitHub Docker Pandas NumPy Scikit-learn Microsoft Azure

📚 Current Direction

Building stronger hands-on networking skills while continuing to develop supporting knowledge in cybersecurity, cloud, and data analytics.

📫 Connect

LinkedIn GitHub

Pinned Loading

  1. Cisco-L2-Security-Redundancy-Lab Cisco-L2-Security-Redundancy-Lab Public

    Cisco Layer 2 security and redundancy lab with VLANs, LACP EtherChannel, Rapid PVST+, port security, BPDU Guard, DHCP Snooping, and Dynamic ARP Inspection.

  2. Cisco-Network-Administration-Troubleshooting-Lab Cisco-Network-Administration-Troubleshooting-Lab Public

    Cisco networking lab covering IPv6, SSH secure management, NTP, EtherChannel, and practical network troubleshooting.

  3. enterprise-network-infrastructure enterprise-network-infrastructure Public

    Enterprise network infrastructure lab built in Cisco Packet Tracer with VLAN segmentation, inter-VLAN routing, HSRP, Rapid PVST+, ACLs, DHCP, NAT/PAT, and internal DNS.

  4. NetFabric NetFabric Public

    A reproducible network engineering lab that builds virtual routed topologies, generates real network traffic, measures performance, analyzes routing behavior, and evaluates resilience through contr…

    Python

  5. NetVanguard NetVanguard Public

    Python network diagnostic and security auditing tool for concurrent TCP port scanning, host health checks, and structured audit logging.

    Python

  6. Wireshark-Network-Traffic-Analysis Wireshark-Network-Traffic-Analysis Public

    Captured and analyzed TCP, ARP, ICMP, and DNS traffic using Wireshark, including TCP connection establishment and controlled ICMP connectivity troubleshooting.