Abstract

Business continuity within financial-services technology environments depends heavily on the availability and resiliency of the underlying network infrastructure. This project focused on the design, configuration, implementation, and validation of a Disaster Recovery (DR) data center network environment for Fiserv, with the objective of establishing a secondary network infrastructure capable of supporting client services in the event of an interruption or failure at the primary data center.
As a Senior Network Engineer with Sterling 5, Inc., Srinivas Marka was responsible for implementing the network-level DR environment and replicating the required network configurations from the primary data center into the disaster recovery facility. The project involved establishing redundant switching, routing, security, and client connectivity while ensuring that network configurations at the DR site were aligned with production requirements.
The implementation covered approximately 100+ network devices, 200+ VLAN and subnet configurations, and connectivity requirements supporting more than 50 client environments. Routing, access-control, redundancy, and failover configurations were standardized and validated to ensure that critical services could be redirected to the DR infrastructure when required.
A structured implementation and testing methodology was used to validate routing convergence, network reachability, security policies, redundancy, and client-specific connectivity. The completed environment provided a scalable secondary network architecture designed to support business continuity, reduce recovery risk, and enable controlled failover of critical services from the primary data center.

Citation details of the article

Journal: International Journal of Applied Mathematics
Journal ISSN (Print): ISSN 1311-1728
Journal ISSN (Electronic): ISSN 1314-8060
Volume: 30
Issue: 6
Year: 2017

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References

1. [1] National Institute of Standards and Technology (NIST), Contingency Planning Guide for Federal Information Systems, NIST Special Publication 800-34 Rev. 1.
2. [2] National Institute of Standards and Technology (NIST), Computer Security Incident Handling Guide, NIST Special Publication 800-61.
3. [3] Cisco Systems, Data Center High Availability and Network Resiliency Design Guidance, Cisco Technical Documentation.
4. [4] Cisco Systems, Enterprise Campus and Data Center Routing and Switching Configuration Guides, Cisco Technical Documentation.
5. [5] Federal Financial Institutions Examination Council (FFIEC), Business Continuity Management, FFIEC IT Examination Handbook.
6. [6] National Institute of Standards and Technology (NIST), Guidelines for the Secure Deployment of IPv6, NIST Special Publication 800-119.