Vendor & Infrastructure Diversity Reduces Risk and Improves Security

Vendor and infrastructure diversity reduces risk and improves security for a nationwide financial firm.


A Nationwide Financial Firm

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A Nationwide Financial Firm

The Problem

Over a decade ago, a financial firm sought our expertise to enhance application and network availability, addressing widespread failures causing operational disruptions and reputational damage. The issues came from several network outages, ranging from regional to enterprise-wide disruptions.  This contrasted with a business requirement for continuous operations. 

They asked us for a network design for 100% availability. 

The BlueAlly Solution

Since 100% is impossible, we focused on a design preventing regional and systemic outages. We ultimately employed infrastructure modularity, vendor, and telecommunications diversity as key risk mitigation strategies, which continue to provide functionality after over a decade 

The Results

Over the years, conduits, fibers, links, and network devices have failed, but there have been no systemic outages since the original network’s implementation over 10 years ago.  The network has survived floods, tornados, and even the loss of a major site during a hurricane. Meanwhile, the financial firm’s network evolved through regional expansions and technological upgrades.

Modular Network Design

Created distinct modular blocks: Core, DCs, Regional Centers, WAN, and Branch Networks.

Introduction of BGP

Introduced Border Gateway Protocol (BGP) to connect modules, ensuring scalability and preventing cascading events.

Fault Tolerance

Modeled a solution for each module, including two separate core networks and duplicated DC structures.

Parallel Networks and SLA

Resulted in separate parallel networks, requiring vendors to collaborate for distinct infrastructures.

Read the specifics in our Diversity Case Study