--- version: rssac002v3 service: i.root-servers.net start-period: '2018-04-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5426309290 dns-udp-queries-received-ipv6: 759524444 dns-tcp-queries-received-ipv4: 130119856 dns-tcp-queries-received-ipv6: 14449602 dns-udp-responses-sent-ipv4: 5406465794 dns-udp-responses-sent-ipv6: 755511922 dns-tcp-responses-sent-ipv4: 128517173 dns-tcp-responses-sent-ipv6: 14531734