--- version: rssac002v3 service: i.root-servers.net start-period: '2019-03-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7067902808 dns-udp-queries-received-ipv6: 1302564054 dns-tcp-queries-received-ipv4: 128246519 dns-tcp-queries-received-ipv6: 33277306 dns-udp-responses-sent-ipv4: 7100459375 dns-udp-responses-sent-ipv6: 1316571354 dns-tcp-responses-sent-ipv4: 122964752 dns-tcp-responses-sent-ipv6: 30620337