| dc.description.abstract | Modern campus networks often face issues such as single points of failure, limited scalability,
and inefficient traffic handling, especially when relying on a single ISP or non-hierarchical
design. These limitations can lead to service disruption and reduced network performance in
real-world environments. This project presents the design and implementation of a redundant
three-tier campus smart network with dual ISP connectivity using Cisco Packet Tracer. The
architecture follows core, distribution, and access layers, where redundancy is ensured at each
level through dual core routers and multilayer switches. Dual ISP connections are configured
using OSPF with cost-based path selection to enable automatic failover between primary and
secondary links The implementation includes VLAN configuration on access switches to
segment student and staff networks, along with inter-VLAN routing using multilayer switches
and HSRP for gateway redundancy. Dynamic routing with OSPF ensures efficient
communication [9], while centralized wireless access is managed using a WLC and APs.
Additionally, services like DHCP, DNS, and email servers are integrated, and ACLs are applied
to control inter-VLAN access. During the simulation, challenges such as OSPF neighbor
formation, VLAN trunking, and failover stability were encountered and resolved through
testing. Failover was verified by shutting down the primary ISP link, where traffic successfully
rerouted through the backup link without interruption. The results show that the proposed
design provides high availability, better traffic management [9], and improved security, making
it suitable for real-world campus network deployment. | en_US |
