--- version: rssac002v3 service: i.root-servers.net start-period: '2018-12-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5774431159 dns-udp-queries-received-ipv6: 1098034355 dns-tcp-queries-received-ipv4: 129975786 dns-tcp-queries-received-ipv6: 32372348 dns-udp-responses-sent-ipv4: 5701113675 dns-udp-responses-sent-ipv6: 1103218313 dns-tcp-responses-sent-ipv4: 126282301 dns-tcp-responses-sent-ipv6: 31719983