--- service: i.root-servers.net start-period: '2013-11-09T00:00:00Z' end-period: '2013-11-10T00:00:03Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2097967707 dns-udp-queries-received-ipv6: 112836364 dns-tcp-queries-received-ipv4: 4647206 dns-tcp-queries-received-ipv6: 213559 dns-udp-responses-sent-ipv4: 2155579597 dns-udp-responses-sent-ipv6: 123739159 dns-tcp-responses-sent-ipv4: 4644962 dns-tcp-responses-sent-ipv6: 221929