Those are very expensive. According to apnic[1], there are 15,000 update / day in 2016. For small size ISP, the number is much lower and may be managible. But e

Those are very expensive. According to apnic[1], there are 15,000 update / day in 2016. For small size ISP, the number is much lower and may be managible. But event driven can't be a general solution for larger isp. [1] https://blog.apnic.net/2017/01/27/bgp-in-2016/ https://blog.apnic.net/2017/01/27/bgp-in-2016/