--- version: rssac002v3 service: i.root-servers.net start-period: '2019-01-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6694136016 dns-udp-queries-received-ipv6: 1312236030 dns-tcp-queries-received-ipv4: 157021964 dns-tcp-queries-received-ipv6: 42430242 dns-udp-responses-sent-ipv4: 6561561629 dns-udp-responses-sent-ipv6: 1284723136 dns-tcp-responses-sent-ipv4: 149331688 dns-tcp-responses-sent-ipv6: 38110170