--- version: rssac002v3 service: i.root-servers.net start-period: '2021-03-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4852653022 dns-udp-queries-received-ipv6: 925629960 dns-tcp-queries-received-ipv4: 420145970 dns-tcp-queries-received-ipv6: 122482503 dns-udp-responses-sent-ipv4: 4027257226 dns-udp-responses-sent-ipv6: 853354705 dns-tcp-responses-sent-ipv4: 322450805 dns-tcp-responses-sent-ipv6: 120385300