--- service: j.root-servers.net start-period: '2015-06-22T00:00:00Z' end-period: '2015-06-22T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3094979366 dns-udp-queries-received-ipv6: 250039328 dns-tcp-queries-received-ipv4: 28160159 dns-tcp-queries-received-ipv6: 16762166 dns-udp-responses-sent-ipv4: 3022897401 dns-udp-responses-sent-ipv6: 249918774 dns-tcp-responses-sent-ipv4: 27358054 dns-tcp-responses-sent-ipv6: 14859729