--- version: rssac002v3 service: i.root-servers.net start-period: '2019-06-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 76173310 dns-udp-queries-received-ipv6: 13398712 dns-tcp-queries-received-ipv4: 1698335 dns-tcp-queries-received-ipv6: 42576 dns-udp-responses-sent-ipv4: 76807632 dns-udp-responses-sent-ipv6: 13398706 dns-tcp-responses-sent-ipv4: 1724048 dns-tcp-responses-sent-ipv6: 42622