--- version: rssac002v3 service: i.root-servers.net start-period: '2021-03-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 13160171568 dns-udp-queries-received-ipv6: 989262383 dns-tcp-queries-received-ipv4: 423036475 dns-tcp-queries-received-ipv6: 131758756 dns-udp-responses-sent-ipv4: 15372571838 dns-udp-responses-sent-ipv6: 915202731 dns-tcp-responses-sent-ipv4: 327325565 dns-tcp-responses-sent-ipv6: 124641587