--- version: rssac002v3 service: i.root-servers.net start-period: '2019-05-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6481557276 dns-udp-queries-received-ipv6: 1336879563 dns-tcp-queries-received-ipv4: 113177328 dns-tcp-queries-received-ipv6: 24930216 dns-udp-responses-sent-ipv4: 6367516967 dns-udp-responses-sent-ipv6: 1335127022 dns-tcp-responses-sent-ipv4: 109626492 dns-tcp-responses-sent-ipv6: 24280180