--- service: i.root-servers.net start-period: '2014-02-03T00:00:00Z' end-period: '2014-02-04T00:00:04Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2372885987 dns-udp-queries-received-ipv6: 164596312 dns-tcp-queries-received-ipv4: 4865691 dns-tcp-queries-received-ipv6: 256622 dns-udp-responses-sent-ipv4: 2320619692 dns-udp-responses-sent-ipv6: 164776750 dns-tcp-responses-sent-ipv4: 4870902 dns-tcp-responses-sent-ipv6: 260042