Just days after AT&T hooked up with IBM and Microsoft for cloud service connectivity, Verizon announced a software-defined interconnect (SDI) service to help the carrier's customers connect Equinix colocation data centers.\nThese two companies have a history. In 2017, Equinix acquired 29 Verizon data centers in the U.S and Latin America for $3.6 billion. So like AT&T, Verizon left data centers to the experts and focused on building connections to them.\n\nAs more enterprises move workloads into colocation facilities run by providers like Equinix, fast, secure connections between the enterprise and the colocation become a must. Verizon's SDI service is designed to provide fast, reliable connectivity between customer and the colocation data center.\nSDI is designed to address the challenges with colocation connections, like building the physical connection and provisioning. SDI leverages an API between the Verizon network and Equinix\u2019s Cloud Exchange Fabric (ECX Fabric), offering organizations with a private IP network direct connectivity to 115 International Business Exchange (IBX) data centers around the globe within minutes, while eliminating the need for dedicated physical connectivity. And that is Verizon's pitch: simplicity and efficiency.\nVerizon also touted its private Multiprotocol Label Switching (MPLS) network, saying it is seeing high double-digit traffic growth year over year, and the adoption of colocation services continues to proliferate as more businesses grapple with complex cloud deployments to achieve greater efficiency, flexibility, and additional functionality in data management.\nIt's an odd mention, since MPLS is said to be falling out of favor as a networking protocol (but we have said otherwise), since MPLS is good for intra-networking functions but doesn\u2019t lend itself to the cloud and going outside the firewall in general.\nThat\u2019s probably because SDI is based on another Verizon service, Secure Cloud Interconnect, which was designed to provide enterprises with rapid, automated connectivity to multiple public cloud services. And SCI is built on Verizon\u2019s Private IP MPLS-based VPN network.\nNot that Verizon hasn\u2019t gotten the SD-WAN religion; it has its own SD-WAN options and offers them side by side with MPLS because the two protocols are seen as complementary and not competitive.