The plugin collects the data for the topology from the detailed output of the BGP peer services via live status. Here it finds the:
Local AS (not for the built-in plugins)
Local address
Local identifier
Remote AS
Remote address
Remote identifier
The plugin uses this information to display the connections between the BGP peers. For external (to Checkmk) BGP peers or BGP connections that are not established, the topology only displays limited information
Note: If you use my BGP plugins, you must at least update to the following versions
Base BGP peer: 2.2.7-20241220 (https://thl-cmk.hopto.org/gitlab/checkmk/vendor-independent/bgp_topology)