--- version: rssac002v3 service: a.root-servers.net start-period: '2017-12-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4966195494 dns-udp-queries-received-ipv6: 402737078 dns-tcp-queries-received-ipv4: 99263957 dns-tcp-queries-received-ipv6: 13008027 dns-udp-responses-sent-ipv4: 4963243699 dns-udp-responses-sent-ipv6: 402727160 dns-tcp-responses-sent-ipv4: 99567965 dns-tcp-responses-sent-ipv6: 13141132