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by mmmooo 4250 days ago
This sounds like arp cache. And can be "fixed" by arping (forced arp responses without a who has)
2 comments
matthavener 4249 days ago
Yup, EC2 instances should be issuing a gratuitous arp on startup. I've seen the same thing on subnets with a lot of DHCP churn due to constantly rebooting embedded devices.
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stevekemp 4249 days ago
Pretty much textbook symptoms of arp-caching.
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