--- service: i.root-servers.net start-period: '2014-10-23T00:00:00Z' end-period: '2014-10-24T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3419574139 dns-udp-queries-received-ipv6: 222446202 dns-tcp-queries-received-ipv4: 7998091 dns-tcp-queries-received-ipv6: 175689 dns-udp-responses-sent-ipv4: 3362446238 dns-udp-responses-sent-ipv6: 225980995 dns-tcp-responses-sent-ipv4: 8101098 dns-tcp-responses-sent-ipv6: 176005