--- version: rssac002v3 service: i.root-servers.net start-period: '2021-05-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5747531204 dns-udp-queries-received-ipv6: 918348384 dns-tcp-queries-received-ipv4: 443949676 dns-tcp-queries-received-ipv6: 121727863 dns-udp-responses-sent-ipv4: 4358416806 dns-udp-responses-sent-ipv6: 848193656 dns-tcp-responses-sent-ipv4: 357792832 dns-tcp-responses-sent-ipv6: 106179440