--- version: rssac002v3 service: i.root-servers.net start-period: '2018-05-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6067849001 dns-udp-queries-received-ipv6: 807763614 dns-tcp-queries-received-ipv4: 142469832 dns-tcp-queries-received-ipv6: 20001156 dns-udp-responses-sent-ipv4: 6025187157 dns-udp-responses-sent-ipv6: 821634506 dns-tcp-responses-sent-ipv4: 139757537 dns-tcp-responses-sent-ipv6: 20063557