--- version: rssac002v3 service: i.root-servers.net start-period: '2020-12-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5388155618 dns-udp-queries-received-ipv6: 1064249266 dns-tcp-queries-received-ipv4: 551259235 dns-tcp-queries-received-ipv6: 136695209 dns-udp-responses-sent-ipv4: 4188937099 dns-udp-responses-sent-ipv6: 928982907 dns-tcp-responses-sent-ipv4: 428050293 dns-tcp-responses-sent-ipv6: 129969656