--- service: a.root-servers.net start-period: '2013-10-31T00:00:00Z' end-period: '2013-10-31T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1561154066 dns-udp-queries-received-ipv6: 88307232 dns-tcp-queries-received-ipv4: 8013813 dns-tcp-queries-received-ipv6: 1403861 dns-udp-responses-sent-ipv4: 1559353449 dns-udp-responses-sent-ipv6: 88321603 dns-tcp-responses-sent-ipv4: 8574967 dns-tcp-responses-sent-ipv6: 130778