Role Descriptions: Configure and support Layer 2 switching| including MAC address learning and forwarding Implement and maintain STP to prevent loops and ensure network stability Configure and troubleshoot EtherChannel for link aggregation and redundancy Design and manage IP addressing and subnetting (CIDR| VLSM) Configure and maintain static routing and basic path control Support dynamic routing protocols (OSPF| EIGRP| BGP basic) and routing operations Troubleshoot routing issues using cost| Administrative Distance (AD)| and best path selection Implement Inter VLAN routing using SVIs and router on a stick Configure and manage NAT (Static| Dynamic| PAT) Implement First Hop Redundancy Protocols (HSRP| VRRP| GLBP) for gateway availability Support WAN connectivity| including MPLS| Internet| and point to point links Configure and manage Standard and Extended ACLs for traffic filtering and security Troubleshoot network connectivity and performance issues to maintain uptime
Essential Skills:
Proficient in Layer 2 switching concepts| including MAC address table learning and forwarding behavior Strong understanding of Spanning Tree Protocol (STP) for loop prevention and network stability Experience configuring and troubleshooting EtherChannel for link aggregation Solid knowledge of IP addressing and subnetting| including CIDR and VLSM Hands on experience with static routing and basic network path control Working knowledge of dynamic routing protocols OSPF| EIGRP| and BGP (basic concepts)Understanding of routing metrics and path selection| including cost| Administrative Distance (AD)| and best path decision logic Experience with Inter VLAN routing using SVIs and router on a stick designs Knowledge of Network Address Translation (NAT) Static NAT| Agile NAT| Port Address Translation (PAT)HSRP| VRRP| and GLBPUnderstanding of WAN connectivity models| including MPLS| Internet-based links| and point to point circuits Experience implementing Access Control Lists (ACLs) Standard