--- version: rssac002v3 service: i.root-servers.net start-period: '2018-04-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5541813429 dns-udp-queries-received-ipv6: 623578467 dns-tcp-queries-received-ipv4: 138349007 dns-tcp-queries-received-ipv6: 17997180 dns-udp-responses-sent-ipv4: 5539675521 dns-udp-responses-sent-ipv6: 623192495 dns-tcp-responses-sent-ipv4: 136379005 dns-tcp-responses-sent-ipv6: 18013745