AWS Direct Connect
AWS Direct Connect establishes a dedicated network connection from on-premises to AWS. Bypass the public internet for consistent, low-latency private connectivity.
What is Direct Connect? (Simple Explanation)
Direct Connect is an AWS service in the Network category. AWS Direct Connect establishes a dedicated network connection from on-premises to AWS.
When Would You Use Direct Connect?
- Hybrid cloud architecture
- High-throughput data transfer
- Real-time data replication
- Latency-sensitive workloads
- Private connectivity for compliance requirements
Who Uses Direct Connect?
From startups to enterprises, Direct Connect powers:
What Makes Direct Connect Powerful
Direct Connect Pricing & Free Tier
Free Tier: 1GB data transfer out (12 months), 750 hours of ELB (12 months). Pay-as-you-go from ~$0.025/GB for CloudFront.
Direct Connect Best Practices
- 1Use VPC Flow Logs for network traffic monitoring and threat detection
- 2Restrict security group inbound rules to specific CIDR ranges (never 0.0.0.0/0 for SSH/RDP)
- 3Use VPC Endpoints to keep traffic to AWS services off the public internet
- 4Enable WAF with managed rules (AWS Managed Core Rule Set) on all public-facing load balancers
- 5Use Transit Gateway instead of VPC peering mesh for >5 VPCs
Getting Started with Direct Connect in 5 Minutes
- 1Open the AWS Console and navigate to Direct Connect
- 2Click "Create" and define your network scope (VPC, subnets, region)
- 3Configure routing, security, and access controls
- 4Review and create — test connectivity before routing production traffic
Direct Connect CLI Quick Reference
1 production-ready commands. Full CLI Library (225+ services) →
aws directconnect describe-connections --query 'connections[*].{ID:connectionId,Name:connectionName,Port:portSpeed,Status:connectionState}'List all Direct Connect connectionsPros & Cons of Direct Connect
Pros
- 1 Gbps, 10 Gbps, and 100 Gbps port speeds
- LAG (Link Aggregation Groups) for higher bandwidth
- Direct Connect Gateway for multi-VPC connectivity
- Transit Virtual Interface for Transit Gateway integration
- MACsec encryption for Layer 2 security
Cons
- ✕Data transfer costs are notoriously difficult to predict — egress is the #1 hidden cost
- ✕Network ACL and Security Group rules can conflict in complex multi-tier apps
- ✕VPC design mistakes (overlapping CIDRs) are painful to fix after resources are deployed
Direct Connect vs Alternatives
Direct Connect vs VPC
Choose Direct Connect for Hybrid cloud architecture and High-throughput data transfer. It excels at 1 gbps, 10 gbps, and 100 gbps port speeds.
Choose VPC as an alternative when your requirements differ. Each service in the Network category serves different architectural patterns.
Services That Work with Direct Connect
Direct Connect is rarely used alone. It is typically combined with:
Compliance & Security
How AWS Direct Connect fits into major compliance standards. Browse all 41 frameworks →
Direct Connect configuration is audited by CIS Benchmarks v1.5–v3.0 for secure cloud defaults.
NIST 800-53Direct Connect access controls, encryption, and audit logging map to NIST 800-53 AC, SC, and AU control families.
PCI DSS 4.0Direct Connect encryption, access control, and logging support PCI DSS for cardholder data environments.
SOC 2Direct Connect security, availability, and confidentiality controls evaluated under SOC 2 Trust Services Criteria.
ISO 27001Direct Connect configuration and monitoring controls map to ISO 27001 Annex A information security management.
Frequently Asked Questions About Direct Connect
What is AWS Direct Connect?
AWS Direct Connect establishes a dedicated network connection from on-premises to AWS. Bypass the public internet for consistent, low-latency private connectivity.
What is Direct Connect used for?
Direct Connect is commonly used for: Hybrid cloud architecture; High-throughput data transfer; Real-time data replication; Latency-sensitive workloads; Private connectivity for compliance requirements. It's a core service in the network category of AWS.
Is Direct Connect free?
Free Tier: 1GB data transfer out (12 months), 750 hours of ELB (12 months). Pay-as-you-go from ~$0.025/GB for CloudFront.
What are the key features of Direct Connect?
Direct Connect's most important capabilities include: 1 Gbps, 10 Gbps, and 100 Gbps port speeds. LAG (Link Aggregation Groups) for higher bandwidth. Direct Connect Gateway for multi-VPC connectivity. Transit Virtual Interface for Transit Gateway integration. MACsec encryption for Layer 2 security. Each of these is designed to help teams hybrid cloud architecture.
How does Direct Connect compare to alternatives?
Direct Connect competes with both AWS-native alternatives (VPC, Transit Gateway, VPN) and third-party equivalents. The right choice depends on your specific requirements for scalability, cost, and operational overhead. See the comparisons section below for detailed guidance.
Which compliance frameworks apply to Direct Connect?
CIS AWS v3.0: Direct Connect configuration is audited by CIS Benchmarks v1.5–v3.0 for secure cloud defaults. NIST 800-53: Direct Connect access controls, encryption, and audit logging map to NIST 800-53 AC, SC, and AU control families. PCI DSS 4.0: Direct Connect encryption, access control, and logging support PCI DSS for cardholder data environments. SOC 2: Direct Connect security, availability, and confidentiality controls evaluated under SOC 2 Trust Services Criteria. ISO 27001: Direct Connect configuration and monitoring controls map to ISO 27001 Annex A information security management.
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