--- version: rssac002v3 service: i.root-servers.net start-period: '2018-06-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5501000992 dns-udp-queries-received-ipv6: 958679537 dns-tcp-queries-received-ipv4: 113927454 dns-tcp-queries-received-ipv6: 16739259 dns-udp-responses-sent-ipv4: 5617308225 dns-udp-responses-sent-ipv6: 966962615 dns-tcp-responses-sent-ipv4: 110270478 dns-tcp-responses-sent-ipv6: 16749497