--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2018-01-03T00:00:00Z' dns-udp-queries-received-ipv4: 1557761602 dns-udp-queries-received-ipv6: 334625256 dns-tcp-queries-received-ipv4: 51819833 dns-tcp-queries-received-ipv6: 9362390 dns-udp-responses-sent-ipv4: 1556595435 dns-udp-responses-sent-ipv6: 334585066 dns-tcp-responses-sent-ipv4: 61456487 dns-tcp-responses-sent-ipv6: 9224352