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Topical to today's issues, WiscNet (and likely others) actively utilize BFD on EBGP peering sessions across peering fabric on various IX's where possible. This helps by detecting issues across layer2 paths without having to wait for the BGP hold time to expire. If anyone would like to enable BFD on our direct sessions, please reach out to us at [log in to unmask], or to me directly. We use minimum-interval 500, multiplier 3 at various IX's with little issue. Cheers, -- Chris Wopat Network Engineer, WiscNet [log in to unmask] 608-210-3965