--- version: rssac002v3 service: m.root-servers.net start-period: '2019-12-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3780369221 dns-udp-queries-received-ipv6: 649719532 dns-udp-responses-sent-ipv4: 3538371153 dns-udp-responses-sent-ipv6: 615985511 dns-tcp-queries-received-ipv4: 229761716 dns-tcp-queries-received-ipv6: 90509072 dns-tcp-responses-sent-ipv4: 229288945 dns-tcp-responses-sent-ipv6: 90558377