--- version: rssac002v3 service: i.root-servers.net start-period: '2018-12-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5771123156 dns-udp-queries-received-ipv6: 1087356102 dns-tcp-queries-received-ipv4: 129149582 dns-tcp-queries-received-ipv6: 27777981 dns-udp-responses-sent-ipv4: 5691277514 dns-udp-responses-sent-ipv6: 1094273435 dns-tcp-responses-sent-ipv4: 126070490 dns-tcp-responses-sent-ipv6: 26920159