--- version: rssac002v3 service: i.root-servers.net start-period: '2017-12-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5186035011 dns-udp-queries-received-ipv6: 719638752 dns-tcp-queries-received-ipv4: 87067209 dns-tcp-queries-received-ipv6: 12639545 dns-udp-responses-sent-ipv4: 5293381925 dns-udp-responses-sent-ipv6: 715956820 dns-tcp-responses-sent-ipv4: 87825876 dns-tcp-responses-sent-ipv6: 12644558