--- service: i.root-servers.net start-period: '2013-08-05T00:00:00Z' end-period: '2013-08-06T00:00:11Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2177263612 dns-udp-queries-received-ipv6: 147397165 dns-tcp-queries-received-ipv4: 4858962 dns-tcp-queries-received-ipv6: 189748 dns-udp-responses-sent-ipv4: 2116763095 dns-udp-responses-sent-ipv6: 147367741 dns-tcp-responses-sent-ipv4: 4829203 dns-tcp-responses-sent-ipv6: 191389