--- service: i.root-servers.net start-period: '2015-03-04T00:00:00Z' end-period: '2015-03-05T00:00:07Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3345810088 dns-udp-queries-received-ipv6: 247574786 dns-tcp-queries-received-ipv4: 7565016 dns-tcp-queries-received-ipv6: 215578 dns-udp-responses-sent-ipv4: 3309399861 dns-udp-responses-sent-ipv6: 247521845 dns-tcp-responses-sent-ipv4: 7643421 dns-tcp-responses-sent-ipv6: 222922