--- service: i.root-servers.net start-period: '2015-09-05T00:00:00Z' end-period: '2015-09-05T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3462873270 dns-udp-queries-received-ipv6: 249523568 dns-tcp-queries-received-ipv4: 26483860 dns-tcp-queries-received-ipv6: 395571 dns-udp-responses-sent-ipv4: 5027647501 dns-udp-responses-sent-ipv6: 249494750 dns-tcp-responses-sent-ipv4: 26443506 dns-tcp-responses-sent-ipv6: 400391