Route-server looking glasses already provide valuable visibility into routing at Internet Exchange Points (IXPs). They typically collect data either by querying route-server software directly, as Alice Looking Glass does, or through dedicated BGP monitoring sessions. These tools help operators and participants inspect advertised prefixes, troubleshoot connectivity, and better understand route-server behavior.

In this presentation, we explore BMP as a complementary approach to monitoring BGP at IXPs. BMP can expose routes before and after policy application, including routes that are filtered or not selected as best paths, while also reporting peer and session state. BIRD and FRRouting can export BMP data when operating as route servers, although their current implementations have limitations and do not expose every standardized BMP view.

We then present the new bgproutes.io IXP Explorer. By combining BMP data from route servers with routing data contributed by IXP participants, it provides near-real-time and historical visibility into routes learned over both route-server and bilateral BGP sessions. The platform enriches these data with RPKI route-origin validation (ROV) and ASPA validation results. The data are openly accessible through the IXP Explorer dashboard and the bgproutes.io public API, enabling both interactive exploration and programmatic analysis.