--- version: rssac002v3 service: i.root-servers.net start-period: '2019-02-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6872870201 dns-udp-queries-received-ipv6: 1317317108 dns-tcp-queries-received-ipv4: 146465207 dns-tcp-queries-received-ipv6: 33877825 dns-udp-responses-sent-ipv4: 6696761118 dns-udp-responses-sent-ipv6: 1309905751 dns-tcp-responses-sent-ipv4: 138358645 dns-tcp-responses-sent-ipv6: 30784929