Transit Gateway deployment locations

Transit Gateway is deployed in the following IBM Cloud Multi-Zone Regions (MZR)A region that is spread across physical locations in multiple zones to increase fault tolerance.. A Transit Gateway in any of these regions can connect VPC networks and, where applicable, classic infrastructure.

An MZR consists of three or more independent zones that provide low latency (< 2 ms) and high bandwidth (> 1000 Gbps) connectivity. Deploying across an MZR can raise application availability from 99.9% to 99.99% compared to a single-zone deployment. Any GADate when a product is widely available for sale and delivery to customers or channels, usually across multiple geographies. service available in an MZR becomes available in all MZRs within 90 days.

For a detailed overview and list of data centers that are part of each MZR, see Multizone regions.

Classic infrastructure data centers in single-zone regions

In addition to connecting VPC networks, a Transit Gateway can connect VPC networks to IBM Cloud classic infrastructure. Classic infrastructure exists in both MZR and single-zone region (SZR) locations. Classic infrastructure in an MZR (such as Frankfurt) connects through the Transit Gateway already deployed in that MZR — no separate table entry is needed. The following table covers only the SZR classic data centers that support VPC-to-classic connectivity through Transit Gateway.

Classic infrastructure in MZR locations (for example, Frankfurt eu-de) is reachable through the Transit Gateway deployed in that MZR. The two tables on this page are intentionally separate: the first shows where Transit Gateway is deployed; this table shows the additional SZR classic data centers that are also reachable.