--- version: rssac002v3 service: i.root-servers.net start-period: '2019-02-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6822497900 dns-udp-queries-received-ipv6: 1305063493 dns-tcp-queries-received-ipv4: 136073568 dns-tcp-queries-received-ipv6: 31765976 dns-udp-responses-sent-ipv4: 6692814907 dns-udp-responses-sent-ipv6: 1306365875 dns-tcp-responses-sent-ipv4: 128870336 dns-tcp-responses-sent-ipv6: 29271216