--- version: rssac002v3 service: i.root-servers.net start-period: '2016-12-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6864922251 dns-udp-queries-received-ipv6: 737871541 dns-tcp-queries-received-ipv4: 72744609 dns-tcp-queries-received-ipv6: 7892101 dns-udp-responses-sent-ipv4: 7003689083 dns-udp-responses-sent-ipv6: 737776367 dns-tcp-responses-sent-ipv4: 75885858 dns-tcp-responses-sent-ipv6: 7922278