I know the bandwidth setting is really a proxy for what proportion of the time my server IP is being returned. What’s surprised me is how much variance there is. I have 6 linode stratum 2 instances running ntpsec (plus my leontp S1). Four of them are set to gigabit for both v4 and v6. The three US based systems generate just under 30GB a day of outbound NTP traffic. The one in germany only does 5GB/day. The two in Asia (singapore and Japan ) are set to much lower number (250 mbit for Japan and 25 mbit for Singapore) and both generate around 40GB/day despite the massively lower settings
I was thinking about ways of maybe making the numbers more meaningful. Given that the number of DNS queries to a zone is known would it be possible to generate an approximate expected NTP traffic for a given zone and bandwidth ?
Obviously this would be very much a moving target. Alternatively knowing what % of the total zone capacity a given server is providing would be helpful. The server count per zone isn’t really useful here without knowing the bandwidth each of the servers is claiming.