--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-09-19T00:00:00Z' dns-udp-queries-received-ipv4: 3116113698 dns-udp-queries-received-ipv6: 730606347 dns-tcp-queries-received-ipv4: 73947764 dns-tcp-queries-received-ipv6: 18178111 dns-udp-responses-sent-ipv4: 3048144014 dns-udp-responses-sent-ipv6: 730830528 dns-tcp-responses-sent-ipv4: 48089849 dns-tcp-responses-sent-ipv6: 12425084