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