--- version: rssac002v3 service: i.root-servers.net start-period: '2019-01-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6608182853 dns-udp-queries-received-ipv6: 1319100423 dns-tcp-queries-received-ipv4: 142769089 dns-tcp-queries-received-ipv6: 35495082 dns-udp-responses-sent-ipv4: 6501714015 dns-udp-responses-sent-ipv6: 1294110252 dns-tcp-responses-sent-ipv4: 135875034 dns-tcp-responses-sent-ipv6: 32098217