--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-05-16T00:00:00Z' dns-udp-queries-received-ipv4: 2818426109 dns-udp-queries-received-ipv6: 528629491 dns-tcp-queries-received-ipv4: 62338185 dns-tcp-queries-received-ipv6: 16452187 dns-udp-responses-sent-ipv4: 2791072093 dns-udp-responses-sent-ipv6: 528244826 dns-tcp-responses-sent-ipv4: 60410071 dns-tcp-responses-sent-ipv6: 16162693