TL&DR Summary: Yes (if you’re clumsy enough).
A while ago I read Impact of Graceful IGP Operations on BGP – an article that described how changes in IGP topology result in temporary (or sometimes even permanent) forwarding loops in networks using BGP route reflectors.
Is the problem real? Yes, it is. Could you generate a BGP RR topology that results in a permanent forwarding loop? Yes. It’s not that hard.
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