IBM Cloud Transit Gateway

Simplify cloud network architecture with secure, scalable, and centralized connectivity

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Overview

Secure, Scalable and AI-ready cloud connectivity

IBM Cloud® Transit Gateway is a secure, scalable, and cost-efficient network service that simplifies connectivity across VPCs, Power Virtual Server, VMware, and on-premises environments. It is built to support high-performance, AI-driven architectures—enabling seamless data movement for GenAI, hybrid cloud, and enterprise applications.

Connectivity: Connect VPCs, PowerVS, VMware, and on-prem across regions via a private network with global routing and 99.99% SLA.

Security: Keep traffic off the public internet using private routing to reduce exposure.

Agility: Scale workloads dynamically across multiple regions, with no single point of failure.

Efficiency: Create a single, centrally managed, scalable routing that connects cloud-native and legacy apps alike.

Features

Built to keep everything connected

Enable secure, high-speed data movement across VPCs and regions to support distributed AI and generative AI workloads.

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Ensure end-to-end data security through isolated network paths and IAM-controlled access, maintaining private connectivity without relying on public networks.

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Connect workloads across 43 availability zones with built-in multi-region routing and no replication lag.

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Ensure fault tolerance and high availability with zone-local prioritization and automatic failover routing.

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Seamlessly extend on-premises networks into IBM Cloud using Direct Link and GRE tunnels, ideal for AI data pipelines.

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Use cases

Connect, scale and innovate

Hybrid cloud integration

Seamlessly extend on-premises networks into IBM Cloud through two secure paths: Direct Link for private connectivity, and a VPN gateway for encrypted connections over the internet, both with dynamic routing to keep traffic flowing efficiently. Ideal for data pipelines that span cloud and on-premises. 
Unify multi-region workloads

Enable seamless communication between VPCs across IBM Cloud  regions with built-in global routing.
Modernize enterprise infrastructure

Integrate Power Virtual Server and VMware environments with cloud-native services using private, high-speed routing.
Build resilient architectures

Ensure fault-tolerant connectivity with zone-local routing and redundant GRE tunnels.
Accelerate AI driven workloads

Enable fast, secure data movement across regions to support distributed training and inference.

 
    Simplify cross-account connectivity

    Securely connect VPCs and classic infrastructure across IBM Cloud  accounts with centralized control.

    Resources

    Learn and explore

    Networking: An introductory guide
    Learn how computer networks operate, how architecture is used to design network topology, and how to help keep your network more secure.
    Security and privacy in the cloud
    Discover how IBM Cloud can help you protect data, track its location more securely, and build customer trust.
    IBM Cloud networking training
    Build networking skills and get IBM Professional Certification through the courses within the Cloud Site Reliability Engineers (SRE) professional curriculum.
    What is Virtual Private Cloud?
    Take a guided tour of virtual private cloud to get an in-depth look at how it can benefit your business.
    Connect more, pay less

    For a limited time, use promo code VPC1000 to simplify your cloud network architecture and unlock USD 1,000 in credits for Transit Gateway connections and data transfer.

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