--- version: rssac002v3 service: i.root-servers.net start-period: '2019-03-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6786385987 dns-udp-queries-received-ipv6: 1391298632 dns-tcp-queries-received-ipv4: 146208509 dns-tcp-queries-received-ipv6: 37252142 dns-udp-responses-sent-ipv4: 6659960592 dns-udp-responses-sent-ipv6: 1402960202 dns-tcp-responses-sent-ipv4: 139764591 dns-tcp-responses-sent-ipv6: 33858178