Business Challenge
A global facilities management company needed to switch their data centre’s Internet Service Provider (ISP). The migration also required a full public IP address refresh and a significant enhancement in network resiliency, without causing service disruption.
Systal’s Solution
Systal provided an end-to-end solution that ensured a secure, resilient, and downtime-free ISP migration. Key project phases included:
- Network Audit: Conducted a full estate review, identifying and removing redundant Site-to-Site VPNs to tighten security
- DMVPN Circuits: Implemented Dynamic Multipoint VPNs to provide failover protection in the event of MPLS service loss
- RIPE IP Allocation: Supported the RIPE application for a /24 public IP range and allocated it across the network
- DNS Migration: Moved DNS registration from the outgoing ISP to an internal solution, improving control and agility
- Router Assessment: Audited, reconfigured, and redistributed routers to avoid unnecessary hardware spend
- Seamless Cutover: Coordinated all parties to complete the ISP migration in a single change window with zero business impact
Key Outcomes
- Zero Downtime: Seamless ISP cutover with no disruption to business operations
- Enhanced Security: Decommissioning of legacy VPNs reduced surface vulnerabilities
- Improved Resilience: DMVPN ensured data centre connectivity even during MPLS failure
- Cost Savings: Reuse of existing hardware reduced unnecessary capital spend
- Operational Agility: Faster DNS changes and improved network autonomy
Business Impact
Systal delivered a fully managed ISP transition that not only avoided disruption but strengthened the client’s network infrastructure. Through intelligent reuse of hardware, enhanced failover capability, and tighter governance, the business now benefits from a more secure, flexible, and resilient IT environment.
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