Auto-sync: 2026-04-28 20:03

This commit is contained in:
2026-04-28 20:03:11 +08:00
parent c51cc4c58b
commit f71229f0c3
94 changed files with 2752 additions and 1295 deletions

View File

@@ -0,0 +1,42 @@
---
title: "Transit Gateway"
type: concept
tags: [AWS, Networking, Multi-Account]
sources: [ctp-topic-7-saas-landing-zone-design]
last_updated: 2026-05-06
---
## Transit Gateway
AWS Transit Gateway 是区域级网络中枢,用于简化多个 VPCs 和账户之间的网络互联互通。
## Definition
Transit Gateway 在 AWS Landing Zone 架构中扮演网络互联的核心角色:
- **范围**区域级Regional连接同一区域内所有账户的 VPCs
- **功能**Hub-and-Spoke 架构的中心节点,所有跨账户流量经由 Transit Gateway 路由
- **与 Checkpoint 集成**Transit Gateway 的流量通过 Checkpoint Appliance 进行安全监控
## Role in SAS Landing Zone
在 [[ctp-topic-7-saas-landing-zone-design]] 定义的 Network 账户中:
- **部署位置**Network Account
- **连接范围**:连接 Core/Baseline/Shared Services/Product 所有账户的 VPCs
- **安全监控**Checkpoint Appliance 部署于 Transit Gateway 层面按标签Tagging Approach监控跨账户流量
- **访问控制**:资源必须携带特定标签(如 `internet-access=true`)才能访问互联网或 On-prem 网络
## Key Properties
- **Type**: Network Hub
- **Scope**: Regional
- **Architecture**: Hub-and-Spoke
- **In SAS LZ**: Network Account 核心组件
## Relationship to Checkpoint
- Transit Gateway 负责路由
- Checkpoint Appliance 负责流量安全检查(按标签策略)
- 两者协同:路由 + 安全监控
## Connections
- [[ctp-topic-7-saas-landing-zone-design]] — SAS LZ Network 账户核心组件
- [[ctp-topic-18-wide-area-networking-in-aws-cloud]] — 广域网WAN连接设计
- [[ctp-topic-31-network-segregation-and-secure-access-to-the-new-aws-landing-zones]] — 网络分段与安全访问