--- version: rssac002v3 service: i.root-servers.net start-period: '2021-03-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4782102061 dns-udp-queries-received-ipv6: 1031244330 dns-tcp-queries-received-ipv4: 446051858 dns-tcp-queries-received-ipv6: 148554931 dns-udp-responses-sent-ipv4: 4088638148 dns-udp-responses-sent-ipv6: 928529234 dns-tcp-responses-sent-ipv4: 358081285 dns-tcp-responses-sent-ipv6: 140205409