--- version: rssac002v3 service: i.root-servers.net start-period: '2018-12-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5882521243 dns-udp-queries-received-ipv6: 1117920790 dns-tcp-queries-received-ipv4: 123503010 dns-tcp-queries-received-ipv6: 33302238 dns-udp-responses-sent-ipv4: 5803188386 dns-udp-responses-sent-ipv6: 1123310275 dns-tcp-responses-sent-ipv4: 120999441 dns-tcp-responses-sent-ipv6: 32471285