--- version: rssac002v3 service: j.root-servers.net start-period: '2017-12-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4603347028 dns-udp-queries-received-ipv6: 412968281 dns-tcp-queries-received-ipv4: 157001707 dns-tcp-queries-received-ipv6: 12834863 dns-udp-responses-sent-ipv4: 4501891207 dns-udp-responses-sent-ipv6: 411627943 dns-tcp-responses-sent-ipv4: 130059674 dns-tcp-responses-sent-ipv6: 12839497