--- version: rssac002v3 service: i.root-servers.net start-period: '2018-09-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5630167726 dns-udp-queries-received-ipv6: 1091225489 dns-tcp-queries-received-ipv4: 126014519 dns-tcp-queries-received-ipv6: 26322232 dns-udp-responses-sent-ipv4: 5693141139 dns-udp-responses-sent-ipv6: 1092190132 dns-tcp-responses-sent-ipv4: 123855570 dns-tcp-responses-sent-ipv6: 25475759