--- service: i.root-servers.net start-period: '2014-03-30T00:00:00Z' end-period: '2014-03-31T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2325104747 dns-udp-queries-received-ipv6: 162176372 dns-tcp-queries-received-ipv4: 5988817 dns-tcp-queries-received-ipv6: 274321 dns-udp-responses-sent-ipv4: 2274923444 dns-udp-responses-sent-ipv6: 162669554 dns-tcp-responses-sent-ipv4: 5996327 dns-tcp-responses-sent-ipv6: 275545