--- version: rssac002v3 service: i.root-servers.net start-period: '2018-05-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6219624658 dns-udp-queries-received-ipv6: 833259541 dns-tcp-queries-received-ipv4: 140134354 dns-tcp-queries-received-ipv6: 17886515 dns-udp-responses-sent-ipv4: 6201008212 dns-udp-responses-sent-ipv6: 833930618 dns-tcp-responses-sent-ipv4: 136900256 dns-tcp-responses-sent-ipv6: 17791532