--- service: i.root-servers.net start-period: '2014-11-27T00:00:00Z' end-period: '2014-11-28T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3311247942 dns-udp-queries-received-ipv6: 222389036 dns-tcp-queries-received-ipv4: 6568373 dns-tcp-queries-received-ipv6: 187748 dns-udp-responses-sent-ipv4: 3263631060 dns-udp-responses-sent-ipv6: 222321137 dns-tcp-responses-sent-ipv4: 6539134 dns-tcp-responses-sent-ipv6: 186685