--- version: rssac002v3 service: i.root-servers.net start-period: '2020-12-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5350015196 dns-udp-queries-received-ipv6: 1027045603 dns-tcp-queries-received-ipv4: 560002988 dns-tcp-queries-received-ipv6: 120882859 dns-udp-responses-sent-ipv4: 4031780264 dns-udp-responses-sent-ipv6: 884862675 dns-tcp-responses-sent-ipv4: 430363971 dns-tcp-responses-sent-ipv6: 111322692