--- version: rssac002v3 service: i.root-servers.net start-period: '2019-01-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6486042056 dns-udp-queries-received-ipv6: 1355242826 dns-tcp-queries-received-ipv4: 142067993 dns-tcp-queries-received-ipv6: 34037709 dns-udp-responses-sent-ipv4: 6345640290 dns-udp-responses-sent-ipv6: 1326291987 dns-tcp-responses-sent-ipv4: 134856141 dns-tcp-responses-sent-ipv6: 30563269