--- version: rssac002v3 service: a.root-servers.net start-period: '2017-09-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3867260932 dns-udp-queries-received-ipv6: 422705323 dns-tcp-queries-received-ipv4: 134123604 dns-tcp-queries-received-ipv6: 10935055 dns-udp-responses-sent-ipv4: 3862530760 dns-udp-responses-sent-ipv6: 422648194 dns-tcp-responses-sent-ipv4: 133866748 dns-tcp-responses-sent-ipv6: 11053331