--- version: rssac002v3 service: i.root-servers.net start-period: '2019-04-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6702997524 dns-udp-queries-received-ipv6: 1285203786 dns-tcp-queries-received-ipv4: 130415973 dns-tcp-queries-received-ipv6: 32453316 dns-udp-responses-sent-ipv4: 6630929826 dns-udp-responses-sent-ipv6: 1288889400 dns-tcp-responses-sent-ipv4: 125181690 dns-tcp-responses-sent-ipv6: 30812842