--- version: rssac002v3 service: i.root-servers.net start-period: '2019-03-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7432411321 dns-udp-queries-received-ipv6: 1347320989 dns-tcp-queries-received-ipv4: 149728219 dns-tcp-queries-received-ipv6: 34573417 dns-udp-responses-sent-ipv4: 7408430655 dns-udp-responses-sent-ipv6: 1370398373 dns-tcp-responses-sent-ipv4: 143746235 dns-tcp-responses-sent-ipv6: 31659253