Alibaba Inc Cisco Systems Huawei Apstra Apstra BGP is being used as the underlay routing protocol in some large- scaled data centers (DCs). Most popular design followed is to do hop-by-hop external BGP (EBGP) session configurations between neighboring routers on a per link basis. The provisioning of BGP neighbors in routers across such a DC brings its own operational complexity. This document introduces a BGP neighbor discovery mechanism that greatly simplifies BGP operations in such DC and other networks by automatic setup of BGP sessions between neighbor routers using this mechanism.