--- version: rssac002v3 service: i.root-servers.net start-period: '2018-03-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5733909581 dns-udp-queries-received-ipv6: 721719371 dns-tcp-queries-received-ipv4: 122298748 dns-tcp-queries-received-ipv6: 14360723 dns-udp-responses-sent-ipv4: 5790677926 dns-udp-responses-sent-ipv6: 716146418 dns-tcp-responses-sent-ipv4: 120414617 dns-tcp-responses-sent-ipv6: 14297034