--- version: rssac002v3 service: i.root-servers.net start-period: '2019-04-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6655717304 dns-udp-queries-received-ipv6: 1286772228 dns-tcp-queries-received-ipv4: 129907709 dns-tcp-queries-received-ipv6: 29415882 dns-udp-responses-sent-ipv4: 6536829741 dns-udp-responses-sent-ipv6: 1293740542 dns-tcp-responses-sent-ipv4: 125212977 dns-tcp-responses-sent-ipv6: 28299574