--- version: rssac002v3 service: i.root-servers.net start-period: '2019-05-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6145305764 dns-udp-queries-received-ipv6: 1327464180 dns-tcp-queries-received-ipv4: 117451376 dns-tcp-queries-received-ipv6: 25994530 dns-udp-responses-sent-ipv4: 6027079018 dns-udp-responses-sent-ipv6: 1328267073 dns-tcp-responses-sent-ipv4: 113069822 dns-tcp-responses-sent-ipv6: 25109760