--- version: rssac002v3 service: i.root-servers.net start-period: '2021-05-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5020072725 dns-udp-queries-received-ipv6: 1024046391 dns-tcp-queries-received-ipv4: 471396024 dns-tcp-queries-received-ipv6: 111610268 dns-udp-responses-sent-ipv4: 4399732338 dns-udp-responses-sent-ipv6: 808609234 dns-tcp-responses-sent-ipv4: 424976895 dns-tcp-responses-sent-ipv6: 88507499