--- version: rssac002v3 service: i.root-servers.net start-period: '2017-12-31T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4944092545 dns-udp-queries-received-ipv6: 585530083 dns-tcp-queries-received-ipv4: 86528840 dns-tcp-queries-received-ipv6: 11454373 dns-udp-responses-sent-ipv4: 4988881424 dns-udp-responses-sent-ipv6: 638232478 dns-tcp-responses-sent-ipv4: 85279358 dns-tcp-responses-sent-ipv6: 11478670