--- service: i.root-servers.net start-period: '2013-11-06T00:00:00Z' end-period: '2013-11-07T00:00:03Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2374224546 dns-udp-queries-received-ipv6: 119675829 dns-tcp-queries-received-ipv4: 5001484 dns-tcp-queries-received-ipv6: 195240 dns-udp-responses-sent-ipv4: 2457749174 dns-udp-responses-sent-ipv6: 131255383 dns-tcp-responses-sent-ipv4: 5007438 dns-tcp-responses-sent-ipv6: 205839