--- version: rssac002v3 service: i.root-servers.net start-period: '2018-06-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4952007580 dns-udp-queries-received-ipv6: 887274848 dns-tcp-queries-received-ipv4: 108693264 dns-tcp-queries-received-ipv6: 18510252 dns-udp-responses-sent-ipv4: 4950219674 dns-udp-responses-sent-ipv6: 885900620 dns-tcp-responses-sent-ipv4: 105440017 dns-tcp-responses-sent-ipv6: 18418503