Explores the real DFZ table received from the AS57355 route server
via the GoBGP feed (the '$feed' / GoBGP BMP peer): IPv4/IPv6 prefix
counts, distinct origin ASes, prefix-length distribution, top origin
ASes by prefix count, and an overlap-based prefix lookup. Serves as
the comparison baseline for the Router Diff dashboard.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
sam
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