--- version: rssac002v3 service: i.root-servers.net start-period: '2018-12-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5903733960 dns-udp-queries-received-ipv6: 1127906055 dns-tcp-queries-received-ipv4: 125411078 dns-tcp-queries-received-ipv6: 31698401 dns-udp-responses-sent-ipv4: 5843304529 dns-udp-responses-sent-ipv6: 1134761096 dns-tcp-responses-sent-ipv4: 122040384 dns-tcp-responses-sent-ipv6: 31051856