--- version: rssac002v3 service: i.root-servers.net start-period: '2019-03-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6888856174 dns-udp-queries-received-ipv6: 1249970769 dns-tcp-queries-received-ipv4: 146576466 dns-tcp-queries-received-ipv6: 35271854 dns-udp-responses-sent-ipv4: 6753879024 dns-udp-responses-sent-ipv6: 1276434448 dns-tcp-responses-sent-ipv4: 140872359 dns-tcp-responses-sent-ipv6: 32514476