--- version: rssac002v3 service: i.root-servers.net start-period: '2019-03-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6076411431 dns-udp-queries-received-ipv6: 1314849469 dns-tcp-queries-received-ipv4: 134820960 dns-tcp-queries-received-ipv6: 35341859 dns-udp-responses-sent-ipv4: 5982556215 dns-udp-responses-sent-ipv6: 1305657182 dns-tcp-responses-sent-ipv4: 128138884 dns-tcp-responses-sent-ipv6: 32053816