--- version: rssac002v3 service: i.root-servers.net start-period: '2021-11-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5384605913 dns-udp-queries-received-ipv6: 818936680 dns-tcp-queries-received-ipv4: 537468816 dns-tcp-queries-received-ipv6: 48889826 dns-udp-responses-sent-ipv4: 4595789362 dns-udp-responses-sent-ipv6: 767873225 dns-tcp-responses-sent-ipv4: 504303301 dns-tcp-responses-sent-ipv6: 35804910