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A word about RTRlib groups

An operator needs to be able to connect to various cache servers. RTRlib uses groups to manage cache servers. Groups are defined by their preference. ROA contents learned from cache servers of the same group are stored in the same prefix trie. Only one group is active at any point, hence only one prefix trie is used at any point. The group with the lowest preference is the active group. The other group are marked as inactive.

If the active group fulfils these conditions, it will be marked as inactive and the group with the next lowest preference will become the new active group:

1. if the active group no longer has the state established

Once a group becomes active, RTRlib will attempt to connect and synchronize will all cache servers in this group.