--- version: rssac002v3 service: i.root-servers.net start-period: '2019-02-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6257292771 dns-udp-queries-received-ipv6: 1275349798 dns-tcp-queries-received-ipv4: 148106612 dns-tcp-queries-received-ipv6: 32924819 dns-udp-responses-sent-ipv4: 6100789396 dns-udp-responses-sent-ipv6: 1254038118 dns-tcp-responses-sent-ipv4: 141193745 dns-tcp-responses-sent-ipv6: 30245857