--- version: rssac002v3 service: i.root-servers.net start-period: '2019-05-25T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2885676227 dns-udp-queries-received-ipv6: 659141460 dns-tcp-queries-received-ipv4: 56886265 dns-tcp-queries-received-ipv6: 10685581 dns-udp-responses-sent-ipv4: 2903824340 dns-udp-responses-sent-ipv6: 673340841 dns-tcp-responses-sent-ipv4: 54759655 dns-tcp-responses-sent-ipv6: 10402565