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wiki/concepts/VPC-Transit-Gateway.md
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---
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id: VPC-Transit-Gateway
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title: "VPC Transit Gateway"
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type: concept
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tags:
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- AWS
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- Network
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- VPC
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- Cloud-Migration
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last_updated: 2026-04-18
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---
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## Aliases
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- Transit Gateway
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- TGW
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## Summary
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- **定义**:AWS 中心辐射式网络互联服务,允许跨 VPC 和本地数据中心之间的网络流量路由
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- **用途**:简化复杂网络的连接和管理
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- **云迁移价值**:实现多 VPC 统一网络架构
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## Key Details
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- **核心功能**:
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- 跨 VPC 互联(数千个 VPC)
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- AWS 与本地数据中心互联(通过 Direct Connect 或 VPN)
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- 跨区域互联
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- 路由表控制
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- **优势**:
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- 简化网络 architecture(中心辐射模型)
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- 减少复杂对等连接管理
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- 集中审计和日志
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- **计费**:按小时和数据量计费
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## Octane Hub 案例
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- Octane Hub 使用 VPC Transit Gateway 实现网络互联
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- 解决了多 VPC 和本地数据中心连接需求
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## Connections
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- [[AWS]] ← provides ← [[VPC-Transit-Gateway]]
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- [[VPC]] ← connected_by ← [[VPC-Transit-Gateway]]
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- [[AWS-Organizations]] ← manages ← [[VPC-Transit-Gateway]]
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