--- version: rssac002v3 service: i.root-servers.net start-period: '2019-03-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7081270314 dns-udp-queries-received-ipv6: 1314843161 dns-tcp-queries-received-ipv4: 132652620 dns-tcp-queries-received-ipv6: 31474397 dns-udp-responses-sent-ipv4: 7006450111 dns-udp-responses-sent-ipv6: 1312556370 dns-tcp-responses-sent-ipv4: 126591599 dns-tcp-responses-sent-ipv6: 29132187