--- version: rssac002v3 service: i.root-servers.net start-period: '2016-07-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4853033445 dns-udp-queries-received-ipv6: 451645547 dns-tcp-queries-received-ipv4: 20015336 dns-tcp-queries-received-ipv6: 1026212 dns-udp-responses-sent-ipv4: 4816620050 dns-udp-responses-sent-ipv6: 452231143 dns-tcp-responses-sent-ipv4: 20371952 dns-tcp-responses-sent-ipv6: 1030875