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The design of BGP Graceful Restart baffles me a bunch

Expectation: State is retained (for the grace time) if

• Session is explicitly shutdown with a graceful restart reason, or
• The peer establishes a new session and states it's restarting in its OPEN message (and the non-restarting router hadn't yet observed that the connection has dropped)

Reality: State is retained if

• You don't send a clean shutdown message

It kinda feels designed to cause accidental packet blackholing to me...