BGP Activity displays the number of times that memory has been allocated or released for a path or prefix.
prefix 是路由 path是路由的AS path信息
BGP activity 24/23 prefixes,24/23 paths,scan interval 60 secs
针对prefix 申请了24 次内存、释放了23次内存,针对path信息 申请了24 次内存、释放了23次内存,每隔60s检查一次