Design and Implementation of a Computer Network to Improve Data Center Accessibility Using Arista Devices and a Failover Method at Terminal 3 of Soekarno-Hatta Airport

Elang Nurjaya; Akrom

doi:10.70356/jafotik.v4i2.143

Authors

Elang Nurjaya Informatics Engineering Study Program, Faculty of Computer Science, Universitas Pamulang
Akrom Informatics Engineering Study Program, Faculty of Computer Science, Universitas Pamulang

DOI:

https://doi.org/10.70356/jafotik.v4i2.143

Keywords:

Data Center, Spine-Leaf, VXLAN, BGP EVPN, MLAG, Failover

Abstract

Data center network accessibility and availability are critical to supporting reliable data services, particularly in environments requiring continuous connectivity. This study aims to design and implement a redundant computer network at Terminal 3 of Soekarno-Hatta International Airport using Arista devices and a failover mechanism. The proposed architecture adopts a Spine-Leaf topology with VXLAN as the data plane, BGP EVPN as the control plane, and MLAG, Anycast VTEP, and ECMP to provide redundancy and multiple active forwarding paths. The implementation was conducted using Arista vEOS 4.31.0F in a PNETLab simulation environment. Network performance was evaluated through three failure scenarios: access-link failure, Leaf device failure, and Spine device failure. The results showed 0% packet loss in all scenarios, with network recovery measured at less than 200 ms. The Leaf failure caused an approximately 20-second HTTP service disruption, while the Spine failure caused a 130-second disruption. Further analysis indicated that the prolonged Spine failure disruption was caused by different BGP timer configurations between the Arista fabric and FortiGate perimeter, rather than by fabric convergence, which occurred within 9 seconds. The proposed architecture successfully improved network redundancy, resilience, and data center accessibility.

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