--- version: rssac002v3 service: i.root-servers.net start-period: '2018-07-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5464196775 dns-udp-queries-received-ipv6: 996729027 dns-tcp-queries-received-ipv4: 124228987 dns-tcp-queries-received-ipv6: 20844299 dns-udp-responses-sent-ipv4: 5445721771 dns-udp-responses-sent-ipv6: 995074563 dns-tcp-responses-sent-ipv4: 121553336 dns-tcp-responses-sent-ipv6: 20654946