Network DRP and BCP: Ensuring Business Continuity

Network DRP/BCP: Disaster Recovery Plan and Business Continuity Plan. NIS2/DORA + ISO 22301 requirements. Geo-redundant architecture, RTO/RPO, and semiannual testing. 2026 guide for CIOs.

BCP vs DRP

• BCP (Continuity): maintain operations during an incident (before recovery)
• DRP (Recovery): restore operations after a major disaster
• Both are required for complete resilience

Key Metrics

• RTO (Recovery Time Objective): maximum time before restoration
• RPO (Recovery Point Objective): acceptable data loss
• MTTR (Mean Time To Recover): actual average recovery time
• MTBF (Mean Time Between Failures): reliability

DR Architecture

Active-Active (2 operational DCs)

• Real-time synchronization
• Global load balancing (GSLB)
• RTO/RPO <1 min
• Cost: 2× infrastructure, but no unused capacity
• Synchronous replication: <100 km maximum

Active-Standby

• Secondary site in warm standby
• Automatic failover
• RTO <15 min, RPO <5 min
• Cost: 1.5× infrastructure

Cold DR

• Secondary site powered off and started after an incident
• RTO 4-24h, RPO depending on backup
• Cost-effective but slow

Geographic Distance

• <100 km: synchronous replication possible, with shared regional risk
• 100-500 km: asynchronous, fast replication
• >500 km: protection against regional disasters
• Multi-region cloud: AWS us-east-1 + eu-west-1

DR Network

• DCI: dedicated links between DCs (dark fiber, MPLS, Internet IPsec)
• DNS GSLB: public IP failover
• SD-WAN: automatic rerouting
• Network backup: 4G/5G for the secondary DC

Testing

• At least semiannually (strict annual requirement for certifications)
• Scenarios: DC loss, ransomware, cyberattack
• Real isolation (not a simulation)
• Detailed documentation + lessons learned
• Business stakeholder involvement is mandatory

Certifications / Compliance

• ISO 22301: Business Continuity Management
• NIS2: requires annual testing
• DORA: testing + TLPT for the financial sector
• HDS: mandatory BCP for healthcare

BCP/DRP Budget

• SMEs: 10-30% of the IT budget
• Mid-market companies: 15-25%
• Large enterprises: 20-35%
• Tier 1 (5 nines): 5% upgrade vs standard

Order from OPTINOC

Turnkey BCP/DRP architecture: multi-DC design + SD-WAN + testing. NIS2/DORA/ISO 22301 compliance. Quote within 1 week.