--- version: rssac002v3 service: i.root-servers.net start-period: '2019-05-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6683095401 dns-udp-queries-received-ipv6: 1355158806 dns-tcp-queries-received-ipv4: 126239890 dns-tcp-queries-received-ipv6: 25858897 dns-udp-responses-sent-ipv4: 6553185085 dns-udp-responses-sent-ipv6: 1354672541 dns-tcp-responses-sent-ipv4: 121445305 dns-tcp-responses-sent-ipv6: 24907835